Zootaxa, Metazoan Parasites of Mexican Amphibians and Reptiles

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ZOOTAXA

1904

Metazoan parasites of Mexican amphibians and reptiles

RICARDO PAREDES-LEÓN, LUIS GARCÍA-PRIETO, CARMEN GUZMÁN-CORNEJO, VIRGINIA LEÓN-RÈGAGNON & TILA M. PÉREZ

Magnolia Press Auckland, New Zealand TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited.

RICARDO PAREDES-LEÓN, LUIS GARCÍA-PRIETO, CARMEN GUZMÁN-CORNEJO, VIRGINIA LEÓN-RÈGAGNON & TILA M. PÉREZ Metazoan parasites of Mexican amphibians and reptiles (Zootaxa 1904) 166 pp.; 30 cm. 15 Oct. 2008 ISBN 978-1-86977-253-6 (paperback) ISBN 978-1-86977-254-3 (Online edition)

FIRST PUBLISHED IN 2008 BY Magnolia Press P.O. Box 41-383 Auckland 1346 New Zealand e-mail: [email protected] http://www.mapress.com/zootaxa/

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ISSN 1175-5326 (Print edition) ISSN 1175-5334 (Online edition)

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Metazoan parasites of Mexican amphibians and reptiles

RICARDO PAREDES-LEÓN1, LUIS GARCÍA-PRIETO2, CARMEN GUZMÁN-CORNEJO1, VIRGINIA LEÓN-RÈGAGNON2 & TILA M. PÉREZ1 1 Colección Nacional de Ácaros, Instituto de Biología, Universidad Nacional Autónoma de México. Avenida Universidad 3000, Ciudad Universitaria, C. P. 04510; Distrito Federal, México [email protected] 2 Colección Nacional de Helmintos, Instituto de Biología, Universidad Nacional Autónoma de México. Avenida Universidad 3000, Ciudad Universitaria, C. P. 04510; Distrito Federal, México [email protected]

Table of Contents

Abstract ...... 3 Introduction ...... 4 Materials and Methods ...... 4 Results ...... 6 Parasite-Host list ...... 6 Platyhelminthes Gegenbaur ...... 6 Trematoda Rudolphi ...... 6 Monogenoidea Bychowsky...... 29 Cestoidea Rudolphi...... 31 Acanthocephala (Rudolphi) ...... 36 Nematoda Rudolphi ...... 38 Annelida Lamarck...... 69 Hirudinea Lamarck ...... 69 Arthropoda Latreille ...... 70 Acari Leach...... 70 Crustacea Brünnich...... 85 Host-Parasite list ...... 86 Amphibia Gray ...... 86 Reptilia Linnaeus ...... 97 Discussion ...... 119 Acknowledgements ...... 120 Literature cited...... 121 Locality index ...... 140 Taxonomic index ...... 155

Abstract

Based on published records and original data, we present a checklist of metazoan parasites of Mexican amphibians and reptiles. This checklist includes information for 430 nominal taxa of metazoan parasites, 371 helminths (137 trematodes, 10 monogeneans, 29 cestodes, 14 acanthocephalans, 173 nematodes, and 8 hirudineans), 51 acari and 8 crustaceans. We add 184 new locality records to Acari. These data represent the current knowledge on metazoan parasites of 68 amphibians and 219 reptile species of Mexico.

Key words: Mexico, amphibians, reptiles, parasites, helminths, Acari

Accepted by H. Klompen: 16 Jun. 2008; published: 15 Oct. 2008 3 TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited.

Introduction

Parasitism is common in nature, and has arisen many times in the evolutionary history of different groups. For example, metazoan parasites of amphibians and reptiles are distributed in five phyla: Platyhelminthes (Trema- toda, Monogenoidea and Cestoidea), Acanthocephala, Nematoda, Annelida (Hirudinea), and Arthropoda (Acari and Crustacea). Although Mexico has a large number of amphibian and reptiles, occupying the second place in global reptilian diversity (804 species), and the fourth in amphibians (361) (Flores-Villela & Canseco-Márquez, 2004), the knowledge about their metazoan parasite fauna is still far from complete. The majority of studies about parasites are isolated records included in descriptions of new species (e.g. Bravo-Hollis, 1943c; Caballero, 1944a; Hoffmann, 1965), general catalogues (Lamothe-Argumedo et al., 1997) and checklists (e.g. Hoffmann, 1969; Hoffmann & López-Campos, 2000). This information is scattered because it has been published in different kinds of sources, from specialized to local journals as well as theses, with limited distribution. The main goal of the present study is to provide a comprehensive compilation of information on the metazoan parasites that inhabit the amphibians and reptiles of Mexico. To do so, we compiled all existing records, made taxonomic changes and synthesized locality data. This information will greatly aid taxonomist working on parasites of Mexico by providing a much needed update on taxonomic status, distribution, and host records.

Materials and Methods

The information used to create this checklist is updated until April, 2008, and comes from two different sources: 1) retrospective bibliographical search, using different databases such as CAB Abstracts, Biological Abstracts, and Zoological Record; 2) Search in the data bases of national [Colección Nacional de Helmintos (CNHE), and Colección Nacional de Ácaros (CNAC), Instituto de Biología, UNAM, Mexico City, Mexico] and international [Harold W. Manter Laboratory of Parasitology (HWML), University of Nebraska-Lincoln, U.S.A., United States National Parasite Collection (USNPC), Beltsville, Maryland, U.S.A.] parasite collections. The checklist is divided in two sections; the first includes a parasite-host list, presented in phylogenetic order starting with the phylum Platyhelminthes (Trematoda, Monogenoidea and Cestoidea), and followed by the phyla Acanthocephala, Nematoda, Annelida (Hirudinea) and Arthropoda (Acari and Crustacea). Each phylum contains families, genera, and species in alphabetical order. The nomenclature and classification for each metazoan group is based on the following references: Trematoda (Yamaguti, 1971; Jones et al., 2002; Gibson et al., 2005), Monogenoidea (Boeger & Kritsky, 1993), Cestoidea (Khalil et al., 1994), Acanthoceph- ala (Amin, 1985), Nematoda (Anderson et al., 1974-1983), Hirudinea (Sawyer, 1986; Davies, 1991), Acari (Evans, 1992), Crustacea including Pentastomida (Martin & Davis, 2001). Information for each species includes species name, authority, host group, developmental stage of parasite in parentheses (A = adult, C = cistacanth, L = larva, N = nymph and M = metacercariae), and finally habitat. We use “NA” when some data are not availables in the original source. Then we present species distribution, referring state of the Mexican Republic (in caps) and locality name, followed by host species and references. For specimens deposited in a collection, acronyms are as follows:

AMNH: American Museum of Natural History, New York, New York, United States. BM(NH): The Natural History Museum (formerly British Museum (Natural History)), London, United Kingdom. CHCM: Colección Helmintológica, CINVESTAV, Mérida, Yucatán, Mexico. CNAC: Colección Nacional de Ácaros, Instituto de Biología, UNAM, México City, México

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(includes the A. Hoffmann Collection). CNHE: Colección Nacional de Helmintos, Instituto de Biología, UNAM, Mexico City, México CPMHN-UABCS: Colección Parasitológica del Museo de Historia Natural de la Universidad Autónoma de Baja California Sur, La Paz, Baja California Sur, Mexico. CSULB: Chigger Research Collection at California State University, Long Beach, California, United States. FMNH: Field Museum of Natural History, Chicago, United States. HPC: Allan Hancock Parasitological Collection, now in Natural History Museum of Los Ange- les County, Los Angeles, United States. HWML: Harold W. Manter Laboratory of Parasitology, University of Nebraska-Lincoln, Nebraska, United States. IMR: Institute for Medical Research, Kuala Lumpur, Malaysia. IPASCR: Institute of Parasitology, Academy of Sciences of the Czech Republic, Cèske Budejovice, Czech Republic. IRSNB: Institut Royal des Sciences Naturelles de Belgique, Brussels, Belgium (Include the Alex Fain Collection). MNHNP: Muséum National d'histoire Naturelle Paris, France. N: Collection George H. F. Nuttall (Specimens from this collection are now in BM(NH)). OSAL: Ohio State Acarology Laboratory, Columbus, Ohio, United States. PENN: University of Pennsylvania, Philadelphia, United States. RML: Rocky Mountain Laboratory, Hamilton, Montana. (Specimens from this collection are now in the USNTC). SIUC: Southern Illinois University, Carbondale, Illinois, United States. UMMZ: Museum of Zoology, University of Michigan, Ann Arbor, Michigan, United States. USDA: United States Department of Agriculture, Washington DC, United Sates. USNCC: United States National Chigger Collection, Acarology Laboratory, University of Hawaii at Manoa, Honolulu, Hawaii. USNM: United States National Museum, Natural History, Smithsonian Institution, Washington, DC, United States. USNMC: United States National Mite Collection, United States National Museum, Natural History, Smithsonian Institution, Agricultural Research Service, Beltsville, Maryland, United States. USNPC: United States Parasite Collection, U. S. Department of Agriculture, Beltsville, Maryland, United Sates. USNTC: United States National Tick Collection, Statesboro, Georgia, United States.

Type host, locality and original reference for new species described from Mexican hosts are indicated in bold font; type material deposition in a collection is indicated with H (=Holotype) and P (=Paratype) after collection acronym. When deposition of specimens is not indicated in the original source, the section “Specimens deposited” is omitted. Finally, notes about important taxonomic considerations are presented when it is necessary to clarify the current species status. New locality and/or taxonomic records are presented in a separate paragraph following the same format described above. Voucher specimens are indicated by the collection acronym and the relevant accession number(s). The second section contains the host-parasite list, which is taxonomically and alphabetically organized, following the phylogenetic order of host groups. Host names are in accordance with Flores-Villela (1993), Flores-Villela and Canseco-Márquez (2004), Frost et al. (2006), and Frost (2007). Host names changed by Frost et al., (2006) and Frost (2007) are followed by the most recent junior synonym. Bibliographic references

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Results

In the present checklist, 430 nominal taxa of parasitic metazoans are listed, 371 pertaining to helminths (137 trematodes, 10 monogeneans, 29 cestodes, 14 acanthocephalans, 173 nematodes, and 8 hirudineans), 51 to acari and 8 to crustaceans. These data represents the current knowledge on metazoans parasites recorded in 68 amphibians and 219 reptile species of Mexico.

Parasite-Host list

Platyhelminthes Gegenbaur Trematoda Rudolphi Acanthostomidae Poche Acanthostomum americanum (Pérez-Vigueras) Crocodylia (A): Intestine. TABASCO: Frontera: Crocodylus moreleti (García-Reynoso, 1991). YUCATÁN: Estuario Celestún: Crocodylus moreleti (Moravec, 2001). Specimens deposited: CNHE (1521), IPASCR. Notes: Specimens from Tabasco were recorded as Proctocaecum acuti (García-Reynoso, 1991) and re- identified as Acanthostomum americanum (Moravec, 2001).

Pelaezia loossi (Pérez-Vigueras) Crocodylia (A): Intestine. TABASCO: Frontera: Crocodylus moreleti (García-Reynoso, 1991). YUCATÁN: Estuario Celestún: Crocodylus moreleti (Moravec, 2001; Salgado-Maldonado & Aguirre-Macedo, 1991). Specimens deposited: CNHE (1366, 1520), IPASCR. Notes: This species was described as Acanthochasmus loossi (Pérez-Vigueras, 1957), and transferred into the genera Acanthostomum (Groschaft & Barus, 1970), Timoniella (Brooks, 1980; Brooks & Holcman, 1993; Brooks, 2004) and Pelaezia (Salgado-Maldonado & Aguirre-Macedo, 1991). The specimens from Tabasco were determined as Acanthostomum sp. and later as Pelaezia loossi (Moravec, 2001).

Pelaezia unami (Peláez & Cruz) Crocodylia (A): Intestine. OAXACA: Río Verde: Crocodylus acutus (Peláez & Cruz, 1953). Specimens deposited: CNHE (1387, 1388)(H, P). Notes: Species described as Acanthostomum unami (Peláez & Cruz, 1953), synonymized with Acanthostomum scyphocephalum (Nasir, 1974), and transferred into Timoniella (Brooks, 1980; Brooks & Holcman, 1993; Brooks, 2004) and finally to Pelaezia (Lamothe-Argumedo & Ponciano-Rodríguez, 1985).

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Proctocaecum caballeroi (Peláez & Cruz) Crocodylia (A): Intestine. OAXACA: Tehuantepec, Río Verde: Crocodylus acutus (Peláez & Cruz, 1953). Specimens deposited: CNHE (687, 1049)(H, P). Notes: This species was described as Acanthostomum caballeroi (Peláez & Cruz, 1953), and subsequently transferred to the genera Atrophecaecum (Groschaft & Barus, 1970), Caimanicola (Brooks, 1980), and Proctocaecum (Lamothe-Argumedo & Ponciano-Rodríguez, 1985). It also has been synonymized with Acanthostomum scyphocephalum (Nasir, 1974).

Proctocaecum megacetabulum (Thatcher) Squamata (A): Intestine. TABASCO: Río Teapa: Drymarchon corais (Thatcher, 1963d); Villahermosa: Drymarchon corais (Thatcher, 1963d). Specimens deposited: HWML (21410), USNPC (60307). Notes: Originally described as Acanthostomum megacetabulum (Thatcher, 1963d), this species was transferred to the genus Proctocaecum (Lamothe-Argumedo & Ponciano-Rodríguez, 1985). Holotype lost.

Proctocaecum nuevoleonensis (Caballero & Caballero) Testudines (A): Intestine. NUEVO LEÓN: Arroyo Ayancual, Río Salinas: Apalone spinifera (Iruegas-Buentello et al., 1991); Río Pesquería: Apalone spinifera (Caballero & Caballero-Rodríguez, 1964; Iruegas-Buentello et al., 1991). Specimens deposited: CNHE (1122)(P). Notes: Species originally described as Acanthostomum nuevoleonensis (Caballero & Caballero-Rodríguez, 1964), and included into the genera Atrophecaecum (Groschaft & Barus, 1970) and Proctocaecum (Lamothe- Argumedo & Ponciano-Rodríguez, 1985). Likewise, it has been synonymized with Acanthostomum scyphocephalum (Nasir, 1974) and Acanthostomum megacetabulum (Brooks, 1980); however, this last proposal has been questioned recently (Tkach & Snyder, 2003). The specimens from Arroyo Ayancual and Río Salinas were recorded as Acanthostomum sp. (Iruegas-Buentello, 1979). Holotype in the personal collection of Eduardo Caballero y Caballero.

Proctocaecum scyphocephalum (Braun) Crocodylia (A): Intestine. TABASCO: Río Teapa: Crocodylus moreleti (Thatcher, 1964). Notes: Specimens recorded as Acanthostomum scyphocephalum (Thatcher, 1964); this species was included in the genus Proctocaecum (Lamothe-Argumedo & Ponciano-Rodríguez, 1985). The most recently revision of the genus (Brooks, 2004), excludes the four species listed above.

Brachycoeliidae (Looss) Brachycoelium salamandrae (Froelich) Squamata (A): Intestine. VERACRUZ: San Antonio Ixtatetla (Huayacocotla): Gerrhonotus ophiurus (Goldberg et al., 1999). Specimens deposited: USNPC (87245).

Cymatocarpus solearis (Braun) Testudines (A): Intestine. GUERRERO: Puerto de Acapulco: Chelonia mydas (Caballero, 1959; Caballero-Rodríguez, 1960).

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Notes: These specimens were identified as Cymatocarpus undulatus; currently this species is considered a synonym of Cymatocarpus solearis (Blair & Limpus, 1982).

Mesocoelium monas (Rudolphi) Amphibia (A): Intestine. OAXACA: Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). VERACRUZ: Lago de Catemaco: Rhinella marina (CNHE; Goldberg et al., 2002b); Laguna El Zacatal: Rhinella marina (Lamothe- Argumedo et al., 1993); Estación de Biología Los Tuxtlas: Rhinella marina, Smilisca baudini (Guillén- Hernández et al., 2000), Smilisca cyanosticta (Goldberg et al., 2002b). Specimens deposited: BM(NH) (1994.6.21.3), CNHE (1528-1530) Squamata (A): Intestine. OAXACA: Cuicatlán: Plestiodon sp. (Zerecero, 1950, 1951). TABASCO: Río Teapa: Ameiva undulata, Drymobius margaritiferus, Leptophis mexicanus, Mabuya unimarginata, Ninia sebae (Thatcher, 1964). Notes: A portion of the specimens collected in Oaxaca were identified as Mesocoelium leiperi (Zerecero, 1950); remaining material (Zerecero, 1951) and the specimens from Tabasco (Thatcher, 1964), were determined as Mesocoelium travassosi. Both species are considered synonyms of Mesocoelim monas (Teixeira de Freitas, 1963).

Calycodidae Dollfus Calycodes anthos (Braun) Testudines (A): Intestine. COLIMA: Manzanillo: Chelonia mydas (Parra-Rojas, 1983). JALISCO: Bahía de Chamela: Eretmochelys imbricata (Almazán-Delgado, 1979). OAXACA: Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León et al., 1996a). Specimens deposited: CNHE (732, 1833).

Cephalogonimidae (Looss) Cephalogonimus americanus Stafford Amphibia (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates sp., Lithobates montezumae (CNHE). ESTADO DE MÉXICO: Ciénaga de Lerma: Ambystoma lermaensis (Pérez-Ponce de León et al., 2000; Mata-López et al., 2002), Lithobates sp. (CNHE), Lithobates montezumae (Pérez-Ponce de León et al., 2000); Salazar: Ambystoma altamirani (Lamothe-Argumedo, 1964). MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerili (García-Altamirano et al., 1993), Lithobates dunni (Pulido-Flores, 1994); Lago de Zacapu: Ambystoma andersoni, Lithobates dunni (Pérez-Ponce de León et al., 2000); Manantiales de Cointzio: Lithobates neovolcanica (Pérez-Ponce de León et al., 2000). NUEVO LEÓN: La Laguna (Higueras): Rhinella marina, Lithobates berlandieri (León-Règagnon et al., 2005b). SINALOA: NA: Lithobates forreri (Goldberg & Bursey, 2002). VERACRUZ: Laguna Escondida: Lithobates berlandieri (Lamothe-Argumedo et al., 1993), Lithobates vaillanti (Guillén-Hernández et al., 2000; Pérez-Ponce de León et al., 2000); Estación de Biología Los Tuxtlas: Rhinella marina, Lithobates berlandieri (Guillén-Hernández et al., 2000). Specimens deposited: CNHE (738, 1519, 1538-39, 1564-65, 3249, 3347, 3259, 3370, 3409, 3425, 3791, 4628-29), USNPC (90728).

Cephalogonimus robustus Caballero & Sokoloff Amphibia (A): Intestine. DISTRITO FEDERAL: NA: Lithobates montezumae (Caballero & Sokoloff, 1936). Notes: Holotype lost.

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Cephalogonimus vesicaudus Nickerson Testudines (A): Intestine. NUEVO LEÓN: Presa Agualeguas, Arroyo Ayancual, Rancho El Puerto, Río San Juan, Río Santa Catarina: Apalone spinifera (Iruegas-Buentello et al., 1991); Laguna de Salinillas: Trachemys scripta (Alvarado-Ramírez, 1993). Notes: Originally, this material was determined as Cephalogonimus sp. (Iruegas-Buentello, 1979).

Cladorchiidae Fischoeder Caballerodiscus resupinatus (Caballero) Testudines (A): Intestine. TABASCO: Río Teapa: Dermatemys mawii (Thatcher, 1963b); Villahermosa: Dermatemys mawii (Caballero-Rodríguez, 1960). VERACRUZ: Laguna de Alvarado: Dermatemys mawii (Caballero, 1940b); Tlacotalpan: Dermatemys mawii (Caballero, 1942c). Specimens deposited: CNHE (977, 978)(P). Notes: Species described as Schizamphistomoides resupinatus (Caballero, 1940b), and re-assigned to the genus Caballerodiscus (Sey, 1988). Holotype lost.

Caballerodiscus tabascensis (Caballero & Sokoloff) Testudines (A): Intestine, stomach. TABASCO: Comalcalco: Dermatemys mawii (CNHE); NA: Dermatemys mawii (Caballero & Sokoloff, 1934a); Río Teapa: Dermatemys mawii (Thatcher, 1964), Kinosternon leucostomum, Trachemys scripta (Thatcher, 1963b); Villahermosa: Dermatemys mawii (Caballero-Rodríguez, 1960). VERACRUZ: Laguna de Alvarado: Terrapene ornata (Caballero, 1938b), Dermatemys mawii (CNHE); Río Blanco: Dermatemys mawii (Parra-Rojas, 1983); Tlacotalpan: Dermatemys mawii (Caballero, 1943a). Specimens deposited: CNHE (980-82, 1045, 1249, 1566, 1568)(P). Notes: Species described as Schizamphistomoides tabascensis (Caballero & Sokoloff, 1934a) and re- assigned to the genus Caballerodiscus (Sey, 1988). Holotype lost.

Megalodiscus americanus Chandler Amphibia (A): Cloaca, intestine. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Bravo-Hollis, 1941). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Bravo-Hollis, 1941; Pérez-Ponce de León et al., 2000). MICHOACÁN: Manantiales de Cointzio: Lithobates megapoda, Lithobates neovolcanica (Pérez- Ponce de León et al., 2000); Lago de Cuitzeo: Lithobates megapoda (Pérez-Ponce de León et al., 2000); Lago de Zacapu: Lithobates dunni (Pérez-Ponce de León et al., 2000). NUEVO LEÓN: La Laguna (Higueras): Ollotis nebulifer, Lithobates berlandieri (León-Règagnon et al., 2005b); Laguna Montford: Lithobates sp. (Martínez-Villarreal, 1969). Specimens deposited: CNHE (873, 1206, 1470, 3351, 3353-54, 3356, 4626-27).

Megalodiscus temperatus (Stafford) Amphibia (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Ambystoma tigrinum (Bravo-Hollis, 1943a), Lithobates sp. (Bravo-Hollis, 1941), Lithobates montezumae (Sokoloff & Caballero, 1933a; Bravo-Hollis, 1941). ESTADO DE MÉXICO: Ciénaga de Lerma: Ambystoma tigrinum (Bravo-Hollis, 1943a), Lithobates sp. (Bravo-Hollis, 1941), Lithobates montezumae (Sokoloff & Caballero, 1933a; Bravo-Hollis, 1941); Lago de Texcoco: Lithobates montezumae (CNHE). SINALOA: NA: Lithobates forreri (Goldberg & Bursey, 2002). SONORA: NA: Leptodactylus melanonotus, Pachymedusa dacnicolor (Goldberg & Bursey, 2002).

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Specimens deposited: CNHE (874, 1207, 1209, 1431, 1542, 4597), USNPC (89808, 89815, 90732). Notes: Description of material from Lago de Xochimilco and Ciénaga de Lerma (Sokoloff & Caballero, 1933a), was used to establish the species Megalodiscus montezumae (Manter, 1938), whose validity was rejected (Manter, 1938; Bravo-Hollis, 1941). However, Yamaguti (1971) listed it among the valid species for the genus.

Megalodiscus sp. Amphibia (A): Body cavity. VERACRUZ: Laguna Escondida: Leptodactylus melanonotus (Goldberg et al., 2002b).

Nematophila grandis (Diesing) Testudines (A): Intestine. CHIAPAS: Río Catazajá: Rhinoclemmys areolata (Dyer & Carr, 1990a). TABASCO: Laguna Emiliano Zapata: Rhinoclemmys areolata (Dyer & Carr, 1990a). Specimens deposited: USNPC (80615, 80617).

Parachiorchis parviacetabulatus Caballero Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Dermatemys mawii (Caballero, 1943a). Specimens deposited: CNHE (1217)(H, P).

Pseudocleptodiscus margaritae Caballero Testudines (A): Intestine. TABASCO: Río Teapa: Dermatemys mawii (Thatcher, 1963b); Villahermosa: Dermatemys mawii (Caballero, 1961). Specimens deposited: USNPC (60309). Notes: Described as Pseudocleptodiscus bravoae (Caballero-Rodríguez, 1960), and later designated as Pseudocleptodiscus margaritae (Caballero, 1961). The material from Río Teapa was described as Dadaytrema sphaerorchidum (Thatcher, 1963b), and later transferred to Pseudocleptodiscus (Yamaguti, 1971). However, P. sphaerorchidum was proposed as a synonym of P. margaritae (Yamaguti, 1971), based on the revision of the type material. Currently this genus is considered monotypic (Jones, 2005). Type material of P. margaritae is lost.

Clinostomidae Lühe Clinostomum sp. Amphibia (M): Mesentery. BAJA CALIFORNIA SUR: Miraflores, San Francisco de la Sierra: Pseudacris regilla (Goldberg et al., 2001). NUEVO LEÓN: La Laguna (Higueras): Lithobates berlandieri (León-Règagnon et al., 2005b). Specimens deposited: CNHE (4633), USNPC (88582).

Clinostomum attenuatum Cort Amphibia (M): Dermis, eyes, muscles, skin. NA: NA: 160 km de Tucson: Rhinella marina (Etges, 1991). SINALOA: NA: Lithobates forreri (Goldberg & Bursey, 2002). Specimens deposited: USNPC (38903, 81864, 90730-31).

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Clinostomum complanatum (Rudolphi) Amphibia (M): Mesentery. VERACRUZ: Laguna El Zacatal: Dendropsophus microcephalus (Goldberg et al., 2002b).

Clinostomum marginatum (Rudolphi) Squamata (M): Muscles. TABASCO: Río Teapa: Nerodia rhombifer (Thatcher, 1964).

Cyathocotylidae Poche Mesostephanus sp. Amphibia (M): Kidneys. GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4450).

Derogenidae Nicoll Halipegus eschi Zelmer & Brooks Amphibia (A): Trachea. VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4084).

Halipegus occidualis Stafford Amphibia (A): Eustachian tubes. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Caballero, 1941b; Caballero, 1947a). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Caballero, 1941b; Pérez-Ponce de León et al., 2000), Lithobates sp. (Caballero, 1941b); Lago de Texcoco: Lithobates montezumae (CNHE). NUEVO LEÓN: La Laguna (Higueras): Lithobates berlandieri (León-Règagnon et al., 2005b). Specimens deposited: CNHE (821, 823-24, 826, 1189, 1190, 1533, 3361, 4630). Notes: Some part of the specimens collected in Lago de Xochimilco was described as Halipegus amhertensis (Caballero, 1947a); re-examination of the original material showed they belong to Halipegus occidualis (McAlpine & Burt, 1998). Likewise, specimens from Ciénaga de Lerma and portions of the specimens collected from Lago de Xochimilco were identified as Halipegus lermensis (Caballero, 1941b) but this species is considered a synonym of Halipegus occidualis (Rankin, 1944; McAlpine & Burt, 1998).

Dicrocoeliidae Odhner Infidum similis Travassos Squamata (A): Gall bladder. TABASCO: Río Teapa: Bothrops asper, Clelia clelia, Coniophanes bipunctatus, Coniophanes quinquevittatus, Drymarchon corais, Leptodeira septentrionalis, Leptophis sp., Micrurus diastema, Nerodia rhombifer, , Thamnophis sp. (Thatcher, 1963d). Testudines (A): Gall bladder. TABASCO: Río Teapa: Staurotypus triporcatus (Thatcher, 1963d).

Diplodiscidae Cohn Catadiscus marinholutzi Teixeira de Freitas & Lent Squamata (A): Intestine. TABASCO: Río Teapa: Coniophanes bipunctatus, Coniophanes imperialis, Coniophanes quinquevittatus, Leptodeira septentrionalis, Thamnophis sp. (Thatcher, 1964).

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Notes: This parasite has been recorded mainly in amphibians (Yamaguti, 1971).

Catadiscus propinquus Teixeira de Freitas & Dobbin Amphibia (A): Intestine. VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4094).

Catadiscus rodriguezi Caballero Amphibia (A): Cloaca, Intestine. GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Pérez-Ponce de León et al., 2000). Specimens deposited: CNHE (3308, 4445-46). Notes: Holotype was collected in Panama.

Dermatemytrema trifoliatum Price Testudines (A): Intestine, stomach. OAXACA: Tehuantepec: Dermatemys mawii (Price, 1937). TABASCO: Río Teapa: Dermatemys mawii (Thatcher, 1963b); Villahermosa: Dermatemys mawii (Caballero-Rodríguez, 1960). VERACRUZ: Laguna de Alvarado: Dermatemys mawii (Caballero, 1943a; Herrera-Rosales, 1951). Specimens deposited: CNHE (766, 1054, 1167-68), USNPC (25458)(H, P).

Diplostomidae Poirier Alaria sp. Amphibia (M): Not recorded. BAJA CALIFORNIA SUR: La Ballena, Miraflores, San Francisco de la Sierra, San Ignacio: Pseudacris regilla (Goldberg et al., 2001). Specimens deposited: USNPC (88581).

Diplostomidae gen. sp. Amphibia (M): Kidneys. GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4449).

Fibricola sp. Amphibia (M): Body cavity, intestine, lungs, urinary bladder. BAJA CALIFORNIA: Cataviña: Pseudacris regilla (Goldberg et al., 2001). BAJA CALIFORNIA SUR: La Ballena, La Junta, La Presa: Pseudacris regilla (Goldberg et al., 2001). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Pérez-Ponce de León et al., 2000). Specimens deposited: CNHE (3365-69), USNPC (88590).

Posthodiplostomum minimum (MacCallum) Amphibia (A): Intestine. MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerili (Pérez-Ponce de León, 1992; García-Altamirano et al., 1993). Specimens deposited: CNHE (1740).

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Testudines (A): Intestine. MICHOACÁN: Lago de Pátzcuaro: Kinosternon hirtipes (Pérez-Ponce de León, 1992; Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (1739).

Tylodelphys sp. Squamata (M): Intestine. ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis eques (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACÁN: Lago de Pátzcuaro: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Specimens deposited: CNHE (3461). Notes: All specimens were recorded as Diplostomum (Tylodelphys) sp., following Dubois (1961).

Gorgoderidae (Looss) Gorgoderina sp. Amphibia (M): NA. BAJA CALIFORNIA SUR: La Presa: Pseudacris regilla (Goldberg et al., 2001). Specimens deposited: USNPC (88589).

Gorgoderina attenuata (Stafford) Amphibia (A): Urinary bladder. DISTRITO FEDERAL: Lago de Xochimilco: Ambystoma tigrinum (Bravo-Hollis, 1943a), Lithobates montezumae (CNHE). ESTADO DE MÉXICO: Ciénaga de Lerma: Ambystoma lermaensis (Pérez-Ponce de León et al., 2000; Mata-López et al., 2002), Ambystoma tigrinum (Bravo-Hollis, 1943a), Lithobates sp. (Caballero, 1942d), Lithobates montezumae (Caballero, 1942d; Pérez-Ponce de León et al., 2000); Lago de Texcoco: Lithobates montezumae (CNHE). MICHOACÁN: Manantiales de Cointzio: Lithobates megapoda, Lithobates neovolcanica (Pérez-Ponce de León et al., 2000); Lago de Pátzcuaro: Lithobates dunni (Pulido- Flores, 1994); Lago de Zacapu: Ambystoma andersoni, Lithobates dunni (Pérez-Ponce de León et al., 2000). SONORA: NA: Leptodactylus melanonotus (Goldberg & Bursey, 2002). VERACRUZ: Estación de Biología Los Tuxtlas: Craugastor rhodopis (Goldberg et al., 2002b), Lithobates vaillanti (Guillén-Hernández et al., 2000; Pérez-Ponce de León et al., 2000); Laguna Escondida: Leptodactylus melanonotus (Goldberg et al., 2002b), Lithobates vaillanti (Pérez-Ponce de León et al., 2000; Goldberg et al., 2002b; Paredes-Calderón et al., 2004). Specimens deposited: CNHE (1180, 1184-85, 1446, 1546-48, 2416, 3402-03, 3412, 3414, 3428, 4113), USNPC (89806). Notes: Gorgoderina skarbilovitschi was described from an unknown locality in Mexico (Pigulewski, 1953), based on a published record of Gorgoderina attenuata (Sokoloff & Caballero, 1933a), but the validity of this species needs confirmation.

Gorgoderina festoni Mata-López & León-Règagnon Amphibia (A): Urinary bladder. COLIMA: Río Armería, Coquimatlán: Leptodactylus melanonotus (Mata-López & León-Règagnon, 2005). GUERRERO: Arcelia: Leptodactylus melanonotus (Mata-López & León-Règagnon, 2005); San Vicente: Leptodactylus fragilis (Mata-López & León-Règagnon, 2005). OAXACA: Paso Canoa: Rhinella marina (Mata-López & León-Règagnon, 2005). VERACRUZ: Laguna El Zacatal: Gastrophryne usta, Leptodactylus fragilis (Mata-López & León-Règagnon, 2005). Specimens deposited: CNHE (3426, 3427, 5100-5102)(H, P).

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Gorgoderina megalorchis Bravo-Hollis Amphibia (A): Urinary bladder. NUEVO LEÓN: Paraje de los Osos (Villa de Santiago): Ecnomiohyla miotympanum (Martínez-Villarreal, 1969). OAXACA: Tuxtepec: Rhinella marina (Bravo-Hollis, 1948). Specimens deposited: CNHE (810-11, 1124)(H, P).

Gorgoderina parvicava Travassos Amphibia (A): Urinary bladder. VERACRUZ: Estación de Biología Los Tuxtlas: Lithobates berlandieri (Guillén-Hernández et al., 2000); Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (2415, 4114).

Gorgoderina rhyacosiredonis (Bravo-Hollis) Amphibia (A): Urinary bladder. DISTRITO FEDERAL: Contreras: Ambystoma altamirani (Bravo-Hollis, 1943a). Specimens deposited: CNHE (1214, 1219)(H, P). Notes: Originally described as Phyllodistomum rhyacosiredonis (Bravo-Hollis, 1943a), and later transferred to Gorgoderina (Prudhoe & Bray, 1982).

Gorgoderina tarascae Mata-López Amphibia (A): Urinary bladder. MICHOACÁN: Cutzaróndiro: Lithobates zweifeli (Mata-López, 2006). Specimens deposited: CNHE (5334, 5335)(H, P).

Plesiochorus cymbiformis (Rudolphi) Testudines (A): Urinary bladder. MICHOACÁN: Boca de Apiza: Lepidochelys olivacea (Molina-Peña, 1977). OAXACA: Puerto Angel: Lepidochelys olivacea (Parra-Rojas, 1983). Specimens deposited: CNHE (926).

Haematoloechidae Odening Haematoloechus sp. Amphibia (A): Lungs. JALISCO: Estación de Biología Chamela: Lithobates forreri (Pérez-Ponce de León et al., 2000).

Haematoloechus breviplexus Stafford Amphibia (A): Lungs. SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: USNPC (89182).

Haematoloechus coloradensis (Cort) Ingles Amphibia (A): Lungs. DISTRITO FEDERAL: NA: Lithobates montezumae (Caballero & Sokoloff, 1934c). GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (León-Règagnon et al., 1999; Pérez-Ponce de León et al., 2000). MICHOACÁN: Lago de Pátzcuaro: Lithobates dunni (Pulido-Flores, 1994; Pérez-Ponce de León et al., 2000); Lago de Zacapu: Lithobates dunni (Pérez-Ponce de León et al., 2000).

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Specimens deposited: CNHE (1559, 1799, 3395, 4447). Notes: These records were recently validated with morphological and molecular information (León- Règagnon et al., 1999).

Haematoloechus complexus (Seely) Amphibia (A): Lungs. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (CNHE). ESTADO DE MÉXICO: Ciénaga de Lerma: Ambystoma lermaensis (León-Règagnon et al., 1999; Pérez-Ponce de León et al., 2000; Mata-López et al., 2002), Lithobates montezumae (León-Règagnon, 1992; León-Règagnon et al., 1999; Pérez-Ponce de León et al., 2000); Lago de Texcoco: Lithobates montezumae (CNHE). MICHOACÁN: Manantiales de Cointzio: Lithobates megapoda, Lithobates neovolcanica (Pérez-Ponce de León et al., 2000). NUEVO LEÓN: La Laguna (Higueras): Lithobates berlandieri (León-Règagnon et al., 2005b); Presa Rodrígo Gómez: Lithobates sp. (Martínez-Villarreal, 1969); Río Pesquería: Lithobates sp. (Martínez-Villarreal, 1969). PUEBLA: Huauchinango: Lithobates berlandieri (León-Règagnon, 2003); SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes- Calderón et al., 2004). Specimens deposited: CNHE (1126, 1428, 1457, 1551, 1552, 3379, 3794, 4086, 4089, 4634), USNPC (89821). Notes: Originally recorded as Ostiolum complexum (Martínez-Villarreal, 1969); comparison of DNA sequences of specimens assigned to Haematoloechus complexus, (based on morphological grounds) from distinct populations from Mexico and USA, suggest that the Mexican populations may represent a distinct species (León-Règagnon, 2003).

Haematoloechus danbrooksi León-Règagnon & Paredes-Calderón Amphibia (A): Lungs. VERACRUZ: Laguna Escondida: Lithobates vaillanti (Pérez-Ponce de León et al., 2000; León- Règagnon & Paredes-Calderón, 2002; Paredes-Calderón et al., 2004); Estación de Biología Los Tuxtlas: Lithobates berlandieri, Lithobates vaillanti (Guillén-Hernández et al., 2000). Specimens deposited: BM(NH) (1994.6.21.5)(P), CNHE (1770, 3424, 4112, 4090, 4088)(H, P), USNPC (92220)(P). Notes: Some specimens were recorded previously as Haematoloechus medioplexus (Guillén-Hernández et al., 2000; Pérez-Ponce de León et al., 2000).

Haematoloechus elongatus Caballero & Sokoloff Amphibia (A): Lungs. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Caballero & Sokoloff, 1934c). ESTADO DE MÉXICO: Lago de Texcoco: Lithobates montezumae (CNHE). GUERRERO: Chilpancingo: Lithobates zweifeli (León-Règagnon, 2003).OAXACA: Santiago Tamazola: Lithobates spectabilis (León- Règagnon, 2003). Specimens deposited: CNHE (813, 1556-57)(P). Notes: These records were recently validated with morphological and molecular information (León- Règagnon, 2003). Holotype lost.

Haematoloechus floedae Harwood Amphibia (A): Lungs. YUCATÁN: Santa Rosa: Lithobates brownorum, Lithobates vaillanti (León-Règagnon et al., 2005a).

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Specimens deposited: CNHE (5067-68).

Haematoloechus illimis Caballero Amphibia (A): Lungs, eustachian tubes. ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Caballero, 1942a; Caballero, 1942d; León-Règagnon et al., 1999; Pérez-Ponce de León et al., 2000). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (1288, 3381, 4085). Notes: These records were recently validated with morphological and molecular information (León- Règagnon et al., 1999). Holotype lost.

Haematoloechus longiplexus Stafford Amphibia (A): Lungs. SONORA: NA: Leptodactylus melanonotus (Goldberg & Bursey, 2002). Specimens deposited: USNPC (89807).

Haematoloechus macrorchis Caballero Amphibia (A): Lungs. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates sp. (CNHE). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates sp. (Caballero, 1941b); Lithobates montezumae (Caballero, 1941b); Pérez-Ponce de León et al., 2000); Lago de Texcoco: Lithobates montezumae (CNHE). Specimens deposited: CNHE (814-15, 1425, 1555, 3394, 5341). Notes: This species was considered a junior synonym of Haematoloechus longiplexus (León-Règagnon et al., 1999), but recently it was validated on molecular grounds (León-Règagnon & Paredes-Calderón, 2002). Holotype lost.

Haematoloechus medioplexus Stafford Amphibia (A): Lungs. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (CNHE). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates sp., Lithobates montezumae (Caballero, 1941b). VERACRUZ: Laguna El Zacatal: Ollotis valliceps (Guillén-Hernández et al., 2000), Dendropsophus microcephalus (Goldberg et al., 2002b); Estación de Biología Los Tuxtlas: Rhinella marina (Guillén-Hernández et al., 2000). Specimens deposited: CNHE (817, 1191, 1426-27). Notes: It has been suggested that specimens from Lago de Xochimilco do not belong to this species [similar to Haematoloechus iturbei (León-Règagnon et al., 1999)], and also that the specimens from Veracruz could pertain to Haematoloechus danbrooksi (León-Règagnon, 2003). Specimens collected in Dendropsophus microcephalus were not deposited in a collection, so their determination remains doubtful (León-Règagnon, 2003).

Haematoloechus parcivitellarius Caballero Amphibia (A): Lungs. ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Caballero, 1942b; Caballero, 1942d). Notes: Holotype lost. Specimens deposited: CNHE (819).

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Haematoloechus pulcher Bravo-Hollis Amphibia (A): Lungs. ESTADO DE MÉXICO: Ciénaga de Lerma: Ambystoma lermaensis (Pérez-Ponce de León et al., 2000; Mata-López et al., 2002), Ambystoma tigrinum (Bravo-Hollis, 1943a), Lithobates montezumae (Pérez-Ponce de León et al., 2000). Specimens deposited: CNHE (1186, 3398, 3418)(H). Notes: This species is morphologically similar to Haematoloechus complexus. However some genetic divergence among morphotypes of both species has been found, suggesting that Haematoloechus pulcher is a valid species (León-Règagnon & Paredes-Calderón, 2002; León-Règagnon, 2003).

Haematoloechus varioplexus Stafford Amphibia (A): Lungs. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Caballero, 1941b). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Caballero, 1941c); Lago de Texcoco: Lithobates montezumae (CNHE). Specimens deposited: CNHE (1553-53). Notes: Discrepancies between the original description and morphometrics of specimens recorded in Mexico suggest that probably this species is not currently distributed in this country (León-Règagnon, 2003).

Heronimidae Ward Heronimus mollis (Leidy) Testudines (A): Lungs. GUANAJUATO: Río Lerdo: Kinosternon hirtipes (Caballero, 1940a). MICHOACÁN: Uruapan: Kinosternon hirtipes (Caballero, 1940a). TABASCO: Río Teapa: Claudius angustatus, Kinosternon leucostomum (Thatcher, 1963b); Villahermosa: Kinosternon leucostomum (Parra-Rojas, 1983). VERACRUZ: Laguna de Alvarado: Kinosternon leucostomum (Herrera-Rosales, 1951). Specimens deposited: CNHE (833, 836, 1062, 1456). Notes: This species was recorded from all five localities as Heronimus chelydrae, which is considered a synonym of Heronimus mollis (Yamaguti, 1971).

Lecithodendriidae (Lühe) Langeronia macrocirra Caballero & Bravo-Hollis Amphibia (A): Intestine. NA: NA: Lithobates sp. (Caballero & Bravo-Hollis, 1949). NUEVO LEÓN: La Laguna (Higueras): Rhinella marina, Lithobates berlandieri (León-Règagnon et al., 2005b); Río Pesquería, Presa Rodrígo Gómez: Lithobates berlandieri, Lithobates sp. (Martínez-Villarreal, 1969; Iruegas-Buentello & Salinas- López, 1989). SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). VERACRUZ: Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna Escondida: Lithobates vaillanti (Goldberg et al., 2002b; Paredes-Calderón et al., 2004); Estación de Biología Los Tuxtlas: Rhinella marina, Lithobates berlandieri, Lithobates vaillanti, Smilisca baudini (Guillén-Hernández et al., 2000). Specimens deposited: BM(NH) (1994.6.21.4), CNHE (843, 1127, 1525-26, 3307, 4093, 4631-32)(H, P), USNPC (89185). Notes: The genus Langeronia was synonymized with Loxogenes (Yamaguti, 1958); currently, some authors consider them independent (Dailey & Goldberg, 2000; Martínez-Salazar, 2004), and others retain the species of Caballero and Bravo-Hollis in Loxogenes (Tkach et al., 2003). The material of Lithobates berlandieri from Río Pesqueria and Presa Rodrígo Gómez, Nuevo León was described as the type of

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Langeronia jimenezi (Iruegas-Buentello & Salinas-López, 1989). This species was synonymized with Langeronia macrocirra (Martínez-Salazar, 2004).

Limatulum sp. Amphibia (A): Intestine. COAHUILA: Cuatro Ciénagas: Lithobates sp. (Guajardo-Martínez, 1984). Notes: The identity of this trematode has been questioned (Guajardo-Martínez, 1984), because species of this genus parasitize the intestines of bats.

Loxogenes sp. Amphibia (A): Intestine. YUCATÁN: Cenote Ixin-há: Lithobates brownorum (Moravec et al., 2002). Specimens deposited: CHCM, IPASCR.

Pleurogenoides sp. Amphibia (A): Intestine. COAHUILA: Cuatro Ciénagas: Lithobates sp. (Guajardo-Martínez, 1984).

Macroderoididae Mc Mullen Choledocystus hepaticus (Lutz) Sullivan Amphibia (A): Bile ducts, gall bladder. CHIAPAS: Corozal: Rhinella marina (Razo-Mendivil, 2004); Río Huixtla: Rhinella marina (Caballero et al., 1944). GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Rhinella marina (Razo-Mendivil et al., 2006). OAXACA: Paso Canoa: Rhinella marina (Razo-Mendivil, 2004); Presa Cerro de Oro: Rhinella marina (Espinoza-Jiménez et al., 2007); Tuxtepec: Rhinella marina (Bravo-Hollis, 1948). Specimens deposited: CNHE (741-43, 1166, 1357, 4074, 4695, 5402), HWML (21705). Notes: This species was originally described as Choledocystus intermedius (Caballero et al., 1944) and transferred into the genus Glypthelmins (Yamaguti, 1958). In 1970 it was synonymized with Glypthelmins vesicalis (Nasir & Díaz, 1970) and finally with Choledocystus hepaticus (Sullivan, 1977b).

Glypthelmins brownorumae Razo-Mendivil, León-Règagnon & Pérez-Ponce de León Amphibia (A): Intestine. TABASCO: Pozo Gualas, Ranchería Benito Juárez: Lithobates brownorum (Razo-Mendivil et al., 2004). Specimens deposited: BM(NH) (2004.3.3.1)(P), CNHE (4667-69)(H, P), USNPC (93039)(P).

Glypthelmins californiensis (Cort) Amphibia (A): Intestine. DISTRITO FEDERAL: NA: Lithobates sp. (Caballero & Sokoloff, 1934b); Lago de Xochimilco: Lithobates montezumae (Caballero & Sokoloff, 1934b). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Caballero, 1942b). MICHOACÁN: Lago de Pátzcuaro: Lithobates dunni (Pulido- Flores, 1994; Razo-Mendivil, 2004); Lago de Zacapu: Lithobates dunni (Pérez-Ponce de León et al., 2000; Razo-Mendivil et al., 2006). VERACRUZ: Laguna El Zacatal: Lithobates berlandieri (Lamothe-Argumedo et al., 1993). Specimens deposited: CNHE (1181, 1561, 3281).

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Notes: The distribution of Glypthelmins californiensis does not include the state of Veracruz (Razo- Mendivil et al., 2004); for this reason, the Veracruz locality record (Lamothe-Argumedo et al., 1993) is doubtful.

Glypthelmins facioi Brenes-Madrigal, Arroyo-Sancho, Jiménez & Delgado Amphibia (A): Intestine. VERACRUZ: Laguna Escondida: Lithobates vaillanti, Leptodactylus melanonotus (Goldberg et al., 2002b). Notes: Molecular analyses established that Glypthelmins facioi is distributed exclusively in Costa Rica. For this reason it is necessary to confirm these records for Mexico (Razo-Mendivil et al., 2004).

Glypthelmins parva Travassos Amphibia (A): Intestine. VERACRUZ: Laguna Escondida: Lithobates vaillanti (Pérez-Ponce de León et al., 2000; Paredes- Calderón et al., 2004; Razo-Mendivil, 2004). Specimens deposited: CNHE (3391, 4115).

Glypthelmins quieta (Stafford) Amphibia (A): Intestine. COLIMA: Coquimatlán: Lithobates magnaocularis, Lithobates sp. (Razo-Mendivil et al., 2006). DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (CNHE). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (León-Règagnon, 1992; Razo-Mendivil et al., 1999; Pérez-Ponce de León et al., 2000); Lago de Texcoco: Lithobates montezumae (CNHE). JALISCO: Atenquique: Lithobates psilonota, Lithobates sp. (Razo-Mendivil, 2004); Lago de Chapala: Lithobates megapoda (Pérez-Ponce de León et al., 2000); Tapalpa: Lithobates neovolcanica (Razo-Mendivil et al., 2006). MICHOACÁN: Lago de Cuitzeo: Lithobates megapoda (Pérez-Ponce de León et al., 2000); Lago de Pátzcuaro, Lago de Zacapu: Lithobates dunni (Razo-Mendivil et al., 1999; Pérez-Ponce de León et al., 2000); Manantiales de Cointzio: Lithobates megapoda (Pérez-Ponce de León et al., 2000), Lithobates neovolcanica (Razo-Mendivil et al., 1999; Pérez-Ponce de León et al., 2000). OAXACA: Huitzo: Lithobates spectabilis (Razo-Mendivil, 2004). SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: CNHE (1461, 1562, 1563, 3271, 3272, 3274, 3275, 3346, 3406, 3416, 4688, 4689, 5028-5032), USNPC (89181, 89820). Notes: Part of the material from Ciénaga de Lerma was recorded as Glypthelmins californiensis (León- Règagnon, 1992) and re-determined as Glypthelmins quieta (Razo-Mendivil et al., 1999).

Glypthelmins sp. Amphibia (M): NA. BAJA CALIFORNIA SUR: Miraflores: Pseudacris regilla (Goldberg et al., 2001). Specimens deposited: USNPC (88584). Amphibia (A): Intestine. OAXACA: 7 km. NE of Zanacatepec: Lithobates vaillanti (CNHE). Specimens deposited: CNHE (4691).

Glypthelmins tuxtlasensis Razo-Mendivil, León-Règagnon & Pérez-Ponce de León Amphibia (A): Intestine.

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CHIAPAS: Cascadas de Agua Azul: Lithobates vaillanti (Razo-Mendivil, 2004). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Pérez-Ponce de León et al., 2000; Razo-Mendivil et al., 1999; Paredes- Calderón et al., 2004; Razo-Mendivil et al., 2004); Estación de Biología Los Tuxtlas: Lithobates berlandieri, Lithobates vaillanti (Guillén-Hernández et al., 2000). Specimens deposited: BM(NH) (2004.3.3.2)(P), CNHE (4670-72)(H, P), USNPC (39040)(P). Notes: Material recorded as Glypthelmins californiensis (Guillén-Hernández et al., 2000), and re- determined as G. facioi (Razo-Mendivil et al., 1999). Specimens from Laguna Escondida were identified as G. facioi (Razo-Mendivil et al., 1999; Pérez-Ponce de León et al., 2000; Paredes-Calderón et al., 2004), and transferred to Glypthelmins tuxtlasensis (Razo-Mendivil et al., 2004).

Parallopharynx arctus Caballero Squamata (A): Intestine. TABASCO: Río Teapa: Basiliscus vittatus (Thatcher, 1963a). VERACRUZ: Estación de Biología Los Tuxtlas: Basiliscus vittatus (Parra-Rojas, 1983). Specimens deposited: CNHE (912-13).

Rauschiella poncedeleoni (Razo-Mendivil & León-Règagnon) Amphibia (A): Intestine. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Rhinella marina, Leptodactylus melanonotus (Razo-Mendivil & León-Règagnon, 2001). SONORA: NA: Leptodactylus melanonotus (Goldberg & Bursey, 2002). TABASCO: Ranchería Benito Juárez, Centro Acuícola de Teapa: Leptodactylus melanonotus (Razo-Mendivil & León-Règagnon, 2001). VERACRUZ: Laguna Escondida: Leptodactylus melanonotus (Pérez-Ponce de León et al., 2000; Razo-Mendivil & León-Règagnon, 2001); Camino a la Barra de Sontecomapa: Leptodactylus melanonotus (Razo-Mendivil & León-Règagnon, 2001). Specimens deposited: CNHE (3392, 3733-37, 3906, 4065-66)(H), USNPC (89805)(P). Notes: Recorded initially as Glypthelmis sp. (Pérez-Ponce de León et al., 2000). The species was described in the genus Glypthelmins (Razo-Mendivil & León-Règagnon, 2001) and transferred to Rauschiella (Razo- Mendivil et al., 2006).

Rauschiella tineri Babero Amphibia (A): Intestine. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Rhinella marina, Leptodactylus melanonotus (Razo-Mendivil et al., 2006). NA: NA: “green frog” (Babero, 1951). TABASCO: Centro Acuícola de Teapa: Leptodactylus melanonotus (Razo-Mendivil, 2004). Specimens deposited: CNHE (4069-72), USNPC (47089-90)(H, P). Squamata (A): Intestine. TABASCO: Río Teapa: Coniophanes imperialis, Leptophis sp., Thamnophis sp. (Thatcher, 1964). Notes: The species was transferred to Glypthelmins (Brooks, 1977) and included again into Rauschiella (Razo-Mendivil et al., 2006). Material from reptiles was recorded originally as Glypthelmins proximus (Thatcher, 1964), and re-determined as Rauschiella tineri (Sullivan, 1977a).

Microscaphidiidae Looss Dictyangium chelydrae Stunkard Testudines (A): Intestine. VERACRUZ: Estero Tamacuil (Ozulama): Terrapene ornata (Caballero, 1946).

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Octangioides skrjabini Price Testudines (A): Intestine. OAXACA: Tehuantepec: Dermatemys mawii (Price, 1937). TABASCO: Villahermosa: Dermatemys mawii (Caballero-Rodríguez, 1960). Specimens deposited: CNHE (893), USNPC (25912)(H, P).

Octangioides tlacotalpensis Caballero Testudines (A): Intestine. TABASCO: Río Teapa: Dermatemys mawii (Thatcher, 1963b). VERACRUZ: Laguna de Alvarado: Dermatemys mawii (Caballero, 1943a); Tlacotalpan: Dermatemys mawii (Caballero, 1942c). Specimens deposited: CNHE (1195-97, 1478)(H, P).

Pachypsolidae Yamaguti Pachypsolus irroratus (Rudolphi) Testudines (A): Stomach, intestine. GUERRERO: Puerto de Acapulco: Chelonia mydas (Caballero-Rodríguez, 1960). MICHOACÁN: Bahía de San Telmo, Cabeza Negra: Lepidochelys olivacea (Molina-Peña, 1977). OAXACA: Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León et al., 1996a). Specimens deposited: CNHE (1088, 1834). Notes: Specimens recorded in Guerrero and Michoacán, were identified as Pachypsolus brachus wich is a synonym of P. irroratus (Blair & Limpus, 1982).

Plagiorchiidae (Lühe) Cheloniotrema tropicum Caballero, Grocott & Zerecero Testudines (A): Bile ducts, esophagus, intestine. OAXACA: Tuxtepec: Kinosternon integrum (Caballero et al., 1956). Specimens deposited: CNHE (739)(H, P).

Dasymetra srivastavai Caballero & Briseño Squamata (A): Mouth, esophagus. NUEVO LEÓN: Cañón de la Boca (Cadereyta): Nerodia erythrogaster (Caballero & Briseño, 1970); Presa Rodrígo Gómez: Nerodia erythrogaster (Iruegas-Buentello, 1979).

Enodiotrema megachondrus (Looss) Testudines (A): Intestine. COLIMA: Manzanillo: Chelonia mydas (Parra-Rojas, 1983). GUERRERO: Puerto de Acapulco: Chelonia mydas (Caballero-Rodríguez, 1960). JALISCO: Bahía de Chamela: Eretmochelys imbricata (Almazán- Delgado, 1979). MICHOACÁN: Boca de Apiza: Lepidochelys olivacea (Molina-Peña, 1977). OAXACA: Playa La Escobilla: Lepidochelys olivacea (Gámez-Vivaldo et al., 2006); Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León et al., 1996a). SINALOA: Playa Ceuta: Lepidochelys olivacea (Molina-Peña, 1977). Specimens deposited: CNHE (798, 1056, 1583, 5115).

Ochetosoma aniarum (Leidy) Squamata (A): Mouth. NUEVO LEÓN: Presa Rodrígo Gómez: Nerodia erythrogaster (Jiménez-Guzmán & Caballero, 1975).

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Ochetosoma brevicaecum (Caballero) Squamata (A): Mouth, esophagus. DISTRITO FEDERAL: Lago de Xochimilco: Thamnophis eques (Pérez-Ponce de León et al., 2001), Thamnophis melanogaster (Bravo-Hollis, 1943b). ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis sp. (Parra-Rojas, 1983), Thamnophis eques (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002), Thamnophis melanogaster (Caballero, 1941a; Bravo-Hollis, 1943b); San Pedro Tultepec: Thamnophis eques (Caballero, 1941a). JALISCO: Lago de Chapala: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACÁN: Lago de Pátzcuaro: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Zacapu: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001); Lago de Zirahuén: Thamnophis melanogaster (CNHE). Specimens deposited: CNHE (889, 958, 1231, 1485, 1487, 3433-36, 3439-41, 3707)(H, P). Notes: Species described in the genus Renifer (Caballero, 1941a), and transferred to Ochetosoma (Flores- Barroeta & Grocott, 1953).

Ochetosoma chauhani Jiménez & Caballero Squamata (A): Mouth, esophagus. NUEVO LEÓN: Fábrica Borward, Presa Rodrígo Gómez, Río Santa Catarina: Drymarchon corais (Jiménez-Guzmán & Caballero, 1975); Presa El Cemento: Drymarchon corais (Iruegas-Buentello, 1979). Specimens deposited: CNHE (3705)(H).

Ochetosoma crotali (Self) Squamata (A): Esophagus. VERACRUZ: Boca del Río: Bothrops asper (Caballero, 1949a); Estación de Biología Los Tuxtlas: Bothrops asper (Parra-Rojas, 1983). Specimens deposited: CNHE (885, 890). Notes: Specimens from Boca del Río were included in Neochetosoma (Caballero, 1949a), a genus synonymized with Ochetosoma (Skrjabin & Antipin, 1959); this species is considered a synonym of Ochetosoma kansense (Dubois & Mahon, 1959).

Ochetosma ellipticum (Pratt) Squamata (A): Mouth, esophagus, lungs. TABASCO: Río Teapa: Bothrops asper, Clelia clelia, Coniophanes bipunctatus, Coniophanes imperialis, Coniophanes quinquevittatus, Mastigodryas melanolomus, Drymarchon corais, Drymobius margaritiferus, Leptodeira septentrionalis, Leptophis mexicanus, Leptophis sp., Micrurus diastema, Pliocercus elapoides, Thamnophis sp. (Thatcher, 1963d).

Ochetosoma elongatum (Pratt) Squamata (A): Body cavity. NUEVO LEÓN: Fábrica Borward, Presa Rodrígo Gómez, Río Santa Catarina: Drymarchon corais (Iruegas-Buentello, 1979).

Ochetosoma grandispinus (Caballero) Squamata (A): Esophagus. HIDALGO: Tasquillo: Drymarchon corais (Caballero, 1938a). Specimens deposited: CNHE (960, 1455) )(P).

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Notes: Described as Renifer grandispinus (Caballero, 1938a), transferred into the genus Neorenifer (Manter, 1943), and then to Ochetosoma (Skrjabin & Antipin, 1959). Finally proposed as synonym of Ochetosoma elongatum (Dubois & Mahon, 1959). Holotype lost.

Ochetosoma sp. Amphibia (M): Liver, intestine, muscles. ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Pérez-Ponce de León et al., 2000); San Pedro Tlaltizapán: Ambystoma lermaensis (Mata-López et al., 2002). MICHOACÁN: Manantiales de Cointzio: Lithobates megapoda, Lithobates neovolcanica (Pérez-Ponce de León et al., 2000); Lago de Pátzcuaro: Ambystoma dumerilii (García-Altamirano et al., 1993), Lithobates dunni (Pulido-Flores, 1994); Lago de Zacapu: Lithobates dunni (Pérez-Ponce de León et al., 2000). Specimens deposited: CNHE (1536-37, 3363-64, 3372, 3792).

Opisthogonimus tabascensis (Thatcher) Squamata (A): Mouth. TABASCO: Villahermosa: Coniophanes quinquevittatus (Thatcher, 1963c). Specimens deposited: USNPC (59896)(H). Notes: Species described as a member of Westella (Thatcher, 1963c), which is considered a subgenus of Opisthogonimus (Yamaguti, 1971).

Parahaplometroides basiliscae Thatcher Squamata (A): Mouth. TABASCO: Rancho El Colorado (Jalapa): Basiliscus vittatus (Thatcher, 1963a). Specimens deposited: CNHE (911)(P), USNPC (59897)(H).

Pneumatophilus variabilis (Leidy) Squamata (A): Heart, lungs, trachea. MICHOACÁN: Lago de Pátzcuaro: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Specimens deposited: CNHE (3462, 3466-67).

Styphlodora horrida (Leidy) Squamata (A): Kidneys. TABASCO: Río Teapa: Bothrops asper, Boa constrictor, Coniophanes quinquevittatus, Mastigodryas melanolomus, Drymarchon corais, Lampropeltis triangulum, Nerodia rhombifer, Spilotes pullatus (Thatcher, 1963d), Thamnophis sp. (Thatcher, 1964).

Styphlotrema solitarium (Looss) Testudines (A): Intestine. JALISCO: Bahía de Chamela: Eretmochelys imbricata (Almazán-Delgado, 1979).

Pronocephalidae Looss Adenogaster serialis Looss Testudines (A): Intestine. COLIMA: Manzanillo: Chelonia mydas (Parra-Rojas, 1983). GUERRERO: Puerto de Acapulco: Chelonia mydas (Caballero-Rodríguez, 1960). MICHOACÁN: Cabeza Negra: Lepidochelys olivacea (Molina-Peña,

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1977). OAXACA: Playa La Escobilla: Lepidochelys olivacea (Gámez-Vivaldo et al., 2006); Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León & Brooks, 1995; Pérez-Ponce de León et al., 1996a). Specimens deposited: CNHE (694, 1052, 1586, 5099).

Cetiosaccus galapagensis Gilbert Testudines (A): Intestine. JALISCO: Bahía de Chamela: Eretmochelys imbricata (Almazán-Delgado, 1979).

Choanophorus rovirosai Caballero Testudines (A): Intestine. TABASCO: Río Teapa: Dermatemys mawii (Thatcher, 1963b); Villahermosa: Dermatemys mawii (Caballero-Rodríguez, 1960). VERACRUZ: Tlacotalpan: Dermatemys mawii (Caballero, 1942c). Specimens deposited: CNHE (740, 1159, 1492)(H).

Diaschistorchis pandus (Braun) Testudines (A): Intestine. NA: NA: Chelonia mydas, Eretmochelys imbricata (Groschaft & Tenora, 1981).

Pleurogonius linearis Looss Testudines (A): Intestine. OAXACA: Salina Cruz: Eretmochelys imbricata (Caballero & Zerecero, 1950). Specimens deposited: CNHE (930).

Pleurogonius lobatus (Looss) Testudines (A): Intestine. OAXACA: Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León & Brooks, 1995; Pérez- Ponce de León et al., 1996a). Specimens deposited: CNHE (1582). Notes: Specimens included in the genus Himasomum, currently considered a synonym of Pleurogonius (Blair, 2005).

Pleurogonius sp. Testudines (A): Intestine. JALISCO: Bahía de Chamela: Eretmochelys imbricata (Almazán-Delgado, 1979). Notes: Almazán-Delgado (1979) differentiated three species, which were named as A, B and C.

Pyelosomum cochlear Looss Testudines (A): Urinary bladder. OAXACA: Puerto Angel: Lepidochelys olivacea (Parra-Rojas, 1983). Specimens deposited: CNHE (953).

Pyelosomum renicapite (Leidy) Ruiz Testudines (A): Intestine. OAXACA: Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León & Brooks, 1995; Pérez-Ponce de León et al., 1996a). Specimens deposited: CNHE (1581).

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Proterodiplostomidae Dubois

Cheloniodiplostomum delillei (Zerecero) Squamata (M): NA. TABASCO: Río Teapa: Nerodia rhombifer (Thatcher, 1964). Testudines (A): Intestine. TABASCO: Río Teapa: Chelydra serpentina, Claudius angustatus (Thatcher, 1963b). VERACRUZ: Laguna de Alvarado: Chelydra serpentina (Zerecero, 1947). Specimens deposited: CNHE (1188, 1433)(H, P). Notes: Species described as Herpetodiplostomum delillei (Zerecero, 1947) and transferred to the genus Cheloniodiplostomum (Sudarikov, 1960). Its inclusion in this genus was confirmed in 1979 (Dubois, 1979).

Cheloniodiplostomum sp. Testudines (A): Intestine. OAXACA: Presa de Temascal: Kinosternon sp. (Ramos-Ramos, 1995). Specimens deposited: CNHE (1402).

Crocodilicola pseudostoma (Willemoes-Suhm) Crocodylia (A): Intestine. TABASCO: Río Teapa: Crocodylus moreleti (Thatcher, 1964). VERACRUZ: Lago de Catemaco: Crocodylus moreleti (Caballero, 1948). Notes: Material from Veracruz could belong to the species Herpetodiplostomum caimanicola (Sudarikov, 1960) or Pseudoneodiplostomum groschafti (Moravec, 2001). Specimens deposited: CNHE (1160).

Massoprostatum longum Caballero Crocodylia (A): Intestine. TABASCO: Río Teapa: Crocodylus moreleti (Thatcher, 1964). VERACRUZ: Lago de Catemaco: Crocodylus moreleti (García-Reynoso, 1991); Río Cuetzalapan: Crocodylus moreleti (Caballero, 1947b). Specimens deposited: CNHE (870-71, 1466, 1505)(H, P).

Proterodiplostomum ophidum Thatcher Squamata (A): Intestine. TABASCO: Río Teapa: Drymarchon corais (Thatcher, 1963d). Specimens deposited: USNPC (60308)(H).

Proterodiplostomum tumidulum Dubois Crocodylia (A): Intestine. TABASCO: Río Teapa: Crocodylus moreleti (Thatcher, 1964).

Pseudoneodiplostomum groschafti Moravec Crocodylia (A): Intestine. VERACRUZ: Lago de Catemaco: Crocodylus moreleti (García-Reynoso, 1991). YUCATÁN: Estuario Celestún: Crocodylus moreleti (Moravec, 2001). Specimens deposited: CNHE (1522), IPASCR (D-442). Notes: Material from Veracruz was determined as Pseudoneodiplostomum sp. (García-Reynoso, 1991), and re-determined as Pseudoneodiplostomum groschafti (Moravec, 2001).

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Rhytidodidae Odhner Rhytidodes gelatinosus (Rudolphi) Testudines (A): Intestine. GUERRERO: Puerto de Acapulco: Chelonia mydas (Caballero-Rodríguez, 1960). Specimens deposited: CNHE (1075).

Strigeidae Railliet Apharyngostrigea sp. Amphibia (M): Kidneys. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4451).

Strigeoidea gen. sp. Squamata (M): Mesentery. SINALOA: ND: Thamnophis validus (Goldberg & Bursey, 2004b). Specimens deposited: USNPC (92782).

Spirorchiidae Stunkard Carettacola stunkardi (Martin & Bamberger) Testudines (A): Mesenteric veins. BAJA CALIFORNIA SUR: Bahía de Santa María: Chelonia mydas (Martin & Bamberger, 1952). JALISCO: Bahía de Chamela: Eretmochelys imbricata (Almazán-Delgado, 1979). Specimens deposited: HPC (499, 4910)(H, P). Notes: Described as Haemoxenicon stunkardi (Martin & Bamberger, 1952), and transferred into the genus Carettacola (Dailey et al., 1991); Haemoxenicon chelonenecon, described from the same hosts and locality of Haemoxenicon stunkardi (Martin & Bamberger, 1952), was synonymized with the latter species (Caballero et al., 1955).

Hapalorhynchus albertoi Lamothe-Argumedo Testudines (A): Blood vessels. TABASCO: Villahermosa: Kinosternon leucostomum (Lamothe-Argumedo, 1978). Specimens deposited: CNHE (829-30)(H, P).

Learedius learedi Price Testudines (A): Heart. BAJA CALIFORNIA SUR: Bahía Magdalena: Chelonia mydas agassizii (Cordero-Tapia et al., 2004; Inohuye-Rivera et al., 2004). Specimens deposited: CNHE (4654), CPMHN-UABCS.

Vasotrema amydae (Stunkard) Testudines (A): Blood vessels. NUEVO LEó N: Rancho El Puerto, Río Pesquería: Apalone spinifera (Iruegas-Buentello et al., 1991). Notes: Material recorded originally as Vasotrema sp. (Iruegas-Buentello, 1979).

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Sclerodistomidae Odhner Prosorchis psenopsis Yamaguti Testudines (A): Intestine. OAXACA: Playa Mazunte: Lepidochelys olicacea (Pérez-Ponce de León et al., 1996a). Specimens deposited: CNHE (1835).

Telorchiidae Stunkard Orchidasma amphiorchis (Braun) Testudines (A): Intestine. OAXACA: Playa Mazunte: Lepidochelys olivacea (Pérez-Ponce de León et al., 1996a); Salina Cruz: Eretmochelys imbricata (Caballero & Zerecero, 1950). TAMAULIPAS: Río Soto la Marina: Chelonia mydas (Caballero, 1962). Specimens deposited: CNHE (900, 903, 1832).

Telorchis attenuatum Goldberger Testudines (A): Intestine. YUCATá N: Aguada Xpoc: Trachemys scripta (Moravec & Vargas-Vázquez, 1998a). Specimens deposited: CNHE (2848), IPASCR.

Telorchis bravoae Caballero & Zerecero Testudines (A): Intestine. TABASCO: Río Mezcalapa: Staurotypus triporcatus (Caballero & Zerecero, 1960). Specimens deposited: CNHE (1138, 1423)(H, P).

Telorchis caballeroi Herrera-Rosales Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Rhinoclemmys areolata, Kinosternon leucostomum (Herrera- Rosales, 1951). Specimens deposited: CNHE (1094-95)(H, P). Notes: The description of this species has not been published, therefore is considered as nomen nudum. This species has been synonymized with Telorchis pleroticus (Nasir, 1974).

Telorchis corti Stunkard Squamata (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Thamnophis marcianus (Bravo-Hollis, 1943b). ESTADO DE Mé XICO: Ciénaga de Lerma: Thamnophis marcianus (Bravo-Hollis, 1943b), Thamnophis eques megalops (Caballero, 1941a), Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Texcoco: Thamnophis marcianus (Bravo-Hollis, 1943b); Laguna de Zumpango: Thamnophis eques (Parra-Rojas, 1983); San Pedro Tultepec: Thamnophis eques megalops (Caballero, 1941a). JALISCO: Lago de Chapala: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACá N: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Pátzcuaro: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Zacapu: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001); Lago de Zirahuén: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001). TABASCO: Río Teapa: Boa constrictor, Leptophis sp., Ninia sebae, Nerodia rhombifer (Thatcher, 1964).

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Testudines (A): Intestine. MICHOACá N: Lago de Cuitzeo, Lago de Pátzcuaro, Lago de Zacapu, Lago de Zirahuén, Manantiales de Cointzio: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). NUEVO LEó N: Río Pesquería, Río Salinas, Río Santa Catarina: Apalone spinifera (Iruegas-Buentello et al., 1991). OAXACA: Presa de Temascal: Kinosternon sp. (Ramos-Ramos, 1995). PUEBLA: Izúcar de Matamoros: Kinosternon integrum (Bravo-Hollis, 1944). TABASCO: Río Teapa: Chelydra serpentina, Claudius angustatus, Kinosternon leucostomum, Trachemys scripta (Thatcher, 1963b). VERACRUZ: Laguna de Alvarado: Rhinoclemmys areolata (Herrera-Rosales, 1951). Specimens deposited: CNHE (748, 989, 994-95, 1096, 1239-41, 1382, 3228, 3305-06, 3343-53, 3811-12, 3819). Notes: Species considered as a synonym of Telorchis attenuatus (Moravec & Vargas-Vázquez, 1998a), and re-validated recently (Pérez-Ponce de León et al., 2001). Material from Tabasco (parasite of B. constrictor, N. sebae, and N. rhombifer), was identified as Telorchis pseudoaculeatus (Thatcher, 1964), and this species is considered a synonym for Telorchis corti (MacDonald & Brooks, 1985). Specimens from Distrito Federal (Bravo-Hollis, 1943b), San Pedro Tultepec (Caballero, 1941a), Lago de Texcoco (Bravo-Hollis, 1943b), and Laguna de Zumpango (Parra-Rojas, 1983), were identified as Telorchis (=Cercorchis) thamnophidis, that has been established as a synonym of Telorchis corti (Pérez-Ponce de León et al., 2001). Likewise, a portion of the material from Ciénaga de Lerma was identified as Telorchis diminutus (Bravo-Hollis, 1943b), and the other as Telorchis kinosterni (Caballero, 1941a), a species synonymized with Telorchis corti (Pérez-Ponce de León et al., 2001). Material from Nuevo León was recorded originally as Telorchis sp. A (Iruegas-Buentello, 1979).

Telorchis dhongokii (Mehra & Bokhari) Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Rhinoclemmys areolata (Herrera-Rosales, 1951). Specimens deposited: CNHE (1097). Notes: This species has been proposed as a synonym of Telorchis robustus (Nasir, 1974).

Telorchis dissentaneus Caballero & Herrera-Rosales Testudines (A): Intestine. MORELOS: Casasano: Kinisternon integrum (Caballero & Herrera-Rosales, 1947). Specimens deposited: CNHE (1242-43)(H, P).

Telorchis dissimilis (Caballero) Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Terrapene ornata (Caballero, 1938b), Rhinoclemmys areolata (Herrera-Rosales, 1951). Specimens deposited: CNHE (1099). Notes: Species described as Cercorchis dissimilis (Caballero, 1938b), transferred into the genus Telorchis (Hughes et al., 1942), and synonymized with Telorchis pleroticus (Nasir, 1974). Holotype lost.

Telorchis membranaceus (Caballero) Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Terrapene ornata (Caballero, 1940b). Specimens deposited: CNHE (745-46)(P), USNPC (36761)(H). Notes: Species described as Cercorchis membranaceus (Caballero, 1940b), transferred into the genus Telorchis (Yamaguti, 1958), and proposed as synonym of Telorchis aculeatus (Nasir, 1974).

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Telorchis patonianus (Caballero) Amphibia (A): Intestine. VERACRUZ: Minatitlán: Dermophis mexicanus (Caballero, 1935a). Testudines (A): Intestine. TABASCO: Río Teapa: Staurotypus triporcatus, Claudius angustatus (Thatcher, 1963b). Notes: Species described as Cercorchis patonianus (Caballero, 1935a), and transferred into the genus Telorchis (Wharton, 1940). Holotype lost.

Telorchis relfooti (Parker) Testudines (A): Intestine. MORELOS: Cuautla: Kinosternon integrum (Herrera-Rosales, 1951). Specimens deposited: CNHE (1593). Notes: This species is considered a synonym of Telorchis diminutus (Nasir, 1974).

Telorchis robustus Goldberger Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Rhinoclemmys areolata (Herrera-Rosales, 1951).

Telorchis singularis (Bennett) Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado: Rhinoclemmys areolata (Herrera-Rosales, 1951). Specimens deposited: CNHE (1101). Notes: This record has been considered doubtful (Nasir, 1974).

Telorchis sp. Amphibia (A): Intestine. VERACRUZ: Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b). Crocodylia (A): Intestine. YUCATá N: Estuario Celestún: Crocodylus moreleti (Moravec, 2001). Specimens deposited: IPASCR. Testudines (A): Intestine. COAHUILA: Cuatro Ciénagas: Terrapene coahuila (Guajardo-Martínez, 1984). JALISCO: Tequila: Kinosternon integrum (HWML). NUEVO LEó N: China: Apalone spinifera (Iruegas-Buentello, 1979). Specimens deposited: HWML (31303). Notes: Material from Nuevo León was recorded as Telorchis sp. B.

Monogenoidea Bychowsky Polystomatidae Gamble Neodiplorchis scaphiopi (Rodgers) Amphibia (L): Urinary bladder. ESTADO DE MEXICO: Capulhuac: Spea hammondi (Lamothe-Argumedo, 1973a). Specimens deposited: CNHE (3052). Amphibia (A): Urinary bladder. ESTADO DE MEXICO: Capulhuac: Spea hammondi (Lamothe-Argumedo, 1973b). Specimens deposited: CNHE (136).

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Neopolystoma domitilae (Caballero) Testudines (A): Urinary bladder. VERACRUZ: Laguna de Alvarado: Terrapene ornata (Caballero, 1938b). TABASCO: Río Teapa: Chelydra serpentina, Trachemys scripta (Thatcher, 1963b). Specimens deposited: CNHE (113-14, 121-22)(H, P). Notes: Caballero (1938b) described this species as Polystoma (Polystomoides) domitilae; later, Price (1939), transferred it to Neopolystoma.

Neopolystoma orbiculare (Stunkard) Testudines (A): Urinary bladder. OAXACA: Tuxtepec: Kinosternon leucostomum (Zerecero, 1948). TAMAULIPAS: Río Tamesi: Trachemys scripta (Lamothe-Argumedo, 1972). Specimens deposited: CNHE (123, 135).

Polystoma naevius Caballero & Zerecero Amphibia (A): Urinary bladder. VERACRUZ: Estación de Biología Los Tuxtlas: Smilisca baudini (Lamothe-Argumedo, 1976), Smilisca cyanosticta (Goldberg et al., 2002b); Potrero Viejo: Smilisca baudini (Caballero & Zerecero, 1941). Specimens deposited: CNHE (73, 2593)(H, P), USNPC (36803) )(P).

Polystomoidella oblonga (Wrigth) Price Testudines (A): Urinary bladder. DISTRITO FEDERAL: Lago de Xochimilco: Kinosternon hirtipes (Lamothe-Argumedo, 1972). GUERRERO: Cacahuamilpa: Kinosternon integrum (Caballero, 1940b). ESTADO DE MÉXICO: NA: Kinosternon hirtipes (Lamothe-Argumedo, 1972). MICHOACÁN: Lago de Cuitzeo, Lago de Zacapu, Lago de Zirahuén, Manantiales de Cointzio: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001); Lago de Pátzcuaro: Kinosternon hirtipes (Parra-Rojas, 1983; Pérez-Ponce de León et al., 2001). MORELOS: Casasano: Kinosternon integrum (Caballero & Herrera-Rosales, 1947). NAYARIT: Río Grande (Villa Hidalgo): Kinosternon hirtipes (Parra-Rojas, 1983). VERACRUZ: Laguna de Alvarado: Kinosternon leucostomum (Herrera-Rosales, 1951). ZACATECAS: Laguna El Mortero: Kinosternon hirtipes (CNHE). Specimens deposited: CNHE (124-25, 228,230, 262, 297, 303, 3204-07, 3810).

Polystomoidella whartoni Price Testudines (A): Urinary bladder. GUANAJUATO: Laguna de Yuriria: Kinosteron hirtipes (Lamothe-Argumedo, 1972); Río Lerdo: Kinosternon hirtipes (Caballero, 1940b). HIDALGO: Tasquillo: Kinosternon hirtipes (Caballero, 1938b). MORELOS: Casasano: Kinosternon integrum (Caballero & Herrera-Rosales, 1947). Specimens deposited: CNHE (112, 115, 231, 302). Notes: Specimens in Caballero (1938b) were determined as Polystoma (Polystomoides) oblongum, and re- determined by Price (1939) as Polystomoidella whartoni.

Polystomoides coronatum (Leidy) Ozaki Testudines (A): Pharynx. NUEVO LEÓN: Laguna de Salinillas: Trachemys scripta (Alvarado-Ramírez, 1993); Río Pesquería, Río San Juan, Río Santa Catarina: Apalone spinifera (Iruegas-Buentello, 1979; Iruegas-Buentello et al., 1991). TABASCO: Río Teapa: Trachemys scripta (Thatcher, 1963b). Specimens deposited: CNHE (274).

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Polystomoides sp. Testudines (A): Intestine (?). COAHUILA: Cuatro Ciénagas: Terrapene coahuila (Guajardo-Martínez, 1984).

Pseudodiplorchis americanus (Rodgers & Kuntz) Amphibia (A): Urinary bladder. BAJA CALIFORNIA SUR: La Paz: Scaphiopus couchi (Lamothe-Argumedo, 1985). NUEVO LEÓN: Río Salinas (El Carmen): Scaphiopus couchi (León-Règagnon et al., 2005b). Specimens deposited: CNHE (1334, 4335).

Riojatrema bravoae Lamothe-Argumedo Amphibia (A): Urinary bladder. MORELOS: Cerro del Tepozteco (Tepoztlán): Eleutherodactylus nitidus, Rhinella marina (Lamothe- Argumedo, 1963). Specimens deposited: CNHE (182-83)(H, P).

Cestoidea Rudolphi Anoplocephalidae Cholodkovsky Mathevotaenia antrozoi (Voge) Squamata (A): Intestine. TABASCO: NA: Undetermined lizard (Flores-Barroeta et al., 1958). Notes: Species described as Oochoristica antrozoi (Flores-Barroeta et al., 1958), and currently included in the genus Mathevotaenia (Schmidt, 1986).

Oochoristica acapulcoensis Brooks, Pérez-Ponce de León & García-Prieto Squamata (A): Intestine. GUERRERO: Puerto de Acapulco: Ctenosaura pectinata (Brooks et al., 1999). Specimens deposited: CNHE (481)(H, P). Notes: This material was identified originally as Oochoristica osheroffi (Macías-Palacios, 1963), and re- determined as Oochoristica acapulcoensis (Brooks et al., 1999).

Oochoristica leonregagnonae Arizmendi-Espinosa, García-Prieto & Guillén-Hernández Squamata (A): Intestine. OAXACA: Cerro de la Garza (Santa María Mixtequilla): Ctenosaura pectinata (Arizmendi-Espinosa et al., 2005). Specimens deposited: CNHE (4899, 4900)(H, P), USNPC (94755)(P).

Oochoristica osheroffi Meggitt Squamata (A): Intestine. MORELOS: Alpuyeca: Ctenosaura pectinata (Flores-Barroeta et al., 1960). Specimens deposited: CNHE (4263). Notes: The validity of this record has been questioned, and its possible inclusion into O. acapulcoensis (Brooks et al., 1999) has been suggested.

Oochoristica parvula (Stunkard) Squamata (A): Intestine.

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YUCATÁN: Cueva Góngora (Oxkutzcab): Coleonyx elegans (Stunkard, 1938a). Specimens deposited: AMNH(H). Notes: This species was described as Oochoristica parva (Stunkard, 1938a), but this name is pre-occupied (Stunkard, 1938b).

Oochoristica phrynosomatis (Harwood) Squamata (A): Intestine. PUEBLA: Cacaloapan: Phrynosoma braconnieri (Goldberg & Bursey, 1991); Caltepec: Phrynosoma taurus (Goldberg & Bursey, 1991). Specimens deposited: USNPC (81217, 81219). Notes: Species described as Diochetos phrynosomatis (Goldberg & Bursey, 1991); the genus Diochetos is currently a synonym of Oochoristica (Beveridge, 1994).

Oochoristica scelopori Voge & Fox Squamata (A): Intestine. CHIHUAHUA, DURANGO, GUANAJUATO, HIDALGO, QUERÉTARO, ZACATECAS: NA: Sceloporus jarrovi (Goldberg et al., 1996). NA: NA: Sceloporus grammicus, Sceloporus mucronatus, Sceloporus variabilis (Goldberg et al., 2003b). HIDALGO: NA: Sceloporus parvus (Goldberg et al., 2003b). PUEBLA: NA: Sceloporus megalepidurus (Goldberg et al., 2003b). SONORA: Baviacora: Phrynosoma ditmarsi (Goldberg & Bursey, 2000b). Specimens deposited: USNPC (85037, 89270).

Oochoristica sp. Squamata (A): Intestine. BAJA CALIFORNIA SUR: Isla Cerralvo: Ctenosaura hemilopha (Iturbe-González, 1998); San José de Comondú: Petrosaurus repens (Bursey & Goldberg, 2007). COLIMA: NA: Crotalus basiliscus (USNPC). MORELOS: Alpuyeca: Ctenosaura pectinata (Flores-Barroeta et al., 1958); Tetelcingo: Ctenosaura acanthura (CNHE). NAYARIT: Presa Aguamilpa: Anolis nebulosus, Ctenosaura pectinata, Phyllodactylus lanei (Mayén-Peña & Salgado-Maldonado, 1998). Specimens deposited: CNHE (501-2, 2839, 3335, 4598), USNPC (45647, 97277). Notes: Material from Alpuyeca was identified as Oochoristica eumecis (Flores-Barroeta et al., 1958); its possible inclusion into Oochoristica acapulcoensis (Brooks et al., 1999), was recently rejected (Arizmendi- Espinosa et al., 2005). Specimens from Presa Aguamilpa were published as three independent species (A, B, C).

Oochoristica whitentoni Stellman Squamata (A): Intestine. GUERRERO: Iguala: Ctenosaura pectinata (Flores-Barroeta, 1955a). Notes: The validity of this record has been questionated; its possible inclusion in O. acapulcoensis has been suggested (Brooks et al., 1999).

Oochoristica whitfieldi Guillén-Hernández, García-Prieto & Arizmendi-Espinosa Squamata (A): Intestine. OAXACA: Ruinas de Guiengola: Ctenosaura oaxacana (Guillén-Hernández et al., 2007). Specimens deposited: CNHE (5477–78)(H, P).

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Bothriocephalidae Blanchard Bothriocephalus acheilognathi Yamaguti Amphibia (A): Intestine. MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerili (García-Altamirano et al., 1993). Specimens deposited: CNHE (433). Squamata (A): Intestine. MICHOACÁN: Lago de Pátzcuaro: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Specimens deposited: CNHE (3460).

Diphyllobothriidae Lühe Diphyllobothriidae gen. sp. Amphibia (L): Body cavity, mesentery, muscles. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4452-53).

Mesocestoididae Perrier Mesocestoides sp. Squamata (L): Body cavity. COAHUILA: Mina San Isidro: Gerrhonotus liocephalus (McAllister, 1991). DISTRITO FEDERAL: NA: Sceloporus grammicus (Goldberg et al., 2003b). CHIHUAHUA: NA: Crotalus willardi (Goldberg & Bursey, 2000a), Sceloporus jarrovi (Goldberg et al., 1996). MORELOS: NA: Sceloporus jarrovi (Goldberg et al., 1996). NAYARIT: Presa Aguamilpa: Anolis nebulosus, Ctenosaura pectinata (Mayén-Peña & Salgado- Maldonado, 1998); 20 millas S of Acaponeta: Drymobius margaritiferus (Goldberg & Bursey, 2004a). QUERÉTARO: NA: Sceloporus torquatus (Goldberg et al., 2003b). SAN LUIS POTOSÍ: NA: Sceloporus jarrovi (Goldberg et al., 1996). SONORA: NA: Crotalus willardi (Goldberg & Bursey, 2000a); Río Cuchujaqui: Coluber mentovarius (Goldberg & Bursey, 2004a); 10 millas E of El Oasis: Trimorphodon tau (Goldberg & Bursey, 2004a). Specimens deposited: USNPC (81866, 85036, 95047, 95052, 95056).

Nematotaeniidae Lühe Bitegmen gerrhonoti (Telford) Squamata (A): Intestine. HIDALGO: Durango: Lepidophyma gaigeae (Goldberg et al., 2002a). Specimens deposited: USNPC (91755).

Cylindrotaenia americana Jewell Amphibia (A): Cloaca, intestine. DISTRITO FEDERAL: Coyoacán: Anaxyrus compactilis, Spea hammondi (Walton, 1940). GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). SONORA: NA: Anaxyrus kelloggi, Leptodactylus melanonotus (Goldberg & Bursey, 2002). Specimens deposited: CNHE (4454), USNPC (42045-46, 89794, 89809).

Distoichometra bufonis Dickey Amphibia (A): Intestine.

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BAJA CALIFORNIA: Isla Cedros: Pseudacris regilla (Goldberg et al., 2001). NUEVO LEÓN: La Laguna (Higueras), La Presita Villarreal (El Carmen): Rhinella marina (León-Règagnon et al., 2005b); Río Pesquería: Rhinella marina, Lithobates sp., (Martínez-Villarreal, 1969); Presa Rodrígo Gómez: Rhinella marina, Ollotis nebulifer (Martínez-Villarreal, 1969). Specimens deposited: CNHE (419-20, 4637-38), USNPC (88600). Notes: The record of Ollotis nebulifer was published as Bufo valliceps.

Nematotaenia dispar (Goeze) Amphibia (A): Intestine. COLIMA: Colima: Rhinella marina (CNHE). GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Rhinella marina (CNHE). SONORA: NA: Ollotis mazatlanensis (Goldberg & Bursey, 2002). VERACRUZ: Lago de Catemaco: Rhinella marina (Galicia-Guerrero et al., 2000; Goldberg et al., 2002b). Specimens deposited: CNHE (4775-77), USNPC (89798).

Paruterinidae Fuhrmann Metroliasthes mexicana (Macías-Palacios & Flores-Barroeta) Amphibia (A): Intestine. ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (Macías-Palacios & Flores- Barroeta, 1967). Specimens deposited: CNHE (458-59)(H, P). Notes: Species described originally as Hexaparuterina mexicana (Macías-Palacios & Flores-Barroeta, 1967), and later transferred to Metroliasthes (Georgiev & Korniushin, 1994).

Proteocephalidae La Rue Crepidobothrium gerrardi (Baird) Squamata (A): Stomach, intestine. NA: NA: Boa constrictor (MacCallum, 1921). Specimens deposited: USNPC (36024). Notes: Species described as Crepidobothrium brevis (MacCallum, 1921), and synonymized with Crepidobothrium gerrardi (De Chambrier, 1989).

Proteocephalidae gen sp. Amphibia (L): Intestine. MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerili (García-Altamirano et al., 1993). Specimens deposited: CNHE (424).

Ophiotaenia filaroides (La Rue) Amphibia (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Macías-Palacios, 1963). ESTADO DE MÉXICO: Lago de Texcoco: Lithobates montezumae (CNHE); Laguna de Zumpango: Ambystoma tigrinum (García-Prieto, 1986). MICHOACÁN: Lago de Pátzcuaro: Lithobates dunni (Pulido-Flores, 1994). NUEVO LEÓN: La Laguna (Higueras): Lithobates berlandieri (León-Règagnon et al., 2005b). Specimens deposited: CNHE (396, 426, 429-30, 4636). Notes: The genus Ophiotaenia has been considered a synonym of Proteocephalus (Brooks, 1978). However, in a phylogenetic analysis of the order Proteocephalidea, De Chambrier et al. (2004) evaluated the structure of the clade Proteocephalus and showed that Proteocephalus species are fundamentally parasites of

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Palaearctic fishes. Material from Laguna de Zumpango was included in Batrachotaenia (García-Prieto, 1986), junior synonym of Ophiotaenia (Brooks, 1978).

Ophiotaenia magna Hannum Amphibia (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Macías-Palacios, 1963). SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: CNHE (477), USNPC (89183). Notes: See notes to Ophiotaenia filaroides.

Ophiotaenia nattereri Parona Squamata (A): Intestine. CHIAPAS: Mapastepec: “Culebra roja” (Flores-Barroeta, 1955b). Notes: See notes to Ophiotaenia filaroides.

Ophiotaenia perspicua La Rue Squamata (A): Intestine. HIDALGO: Tasquillo: Crotalus sp. (Flores-Barroeta et al., 1961). NUEVO LEÓN: Presa Rodrígo Gómez: Nerodia erythrogaster (García-Prieto, 1986). Specimens deposited: CNHE (405). Notes: See notes to Ophiotaenia filaroides. Host from Hidalgo was identified as Crotalus cinereus (Flores- Barroeta et al., 1961), however this name apparently does not exist.

Ophiotaenia racemosa Rudolphi Squamata (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Thamnophis eques (Cruz-Reyes, 1974). ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis eques (Cruz-Reyes, 1974). MICHOACÁN: Lago de Pátzcuaro: Thamnophis melanogaster (Cruz-Reyes, 1974). Specimens deposited: CNHE (388, 427-28). Notes: Validity of these records have been questioned due to discrepancies between characteristics of specimens and the original description of O. racemosa (García-Prieto, 1993). See notes to Ophiotaenia filaroides.

Proteocephalus micruricola Shoop & Corkum Squamata (A): Intestine. OAXACA: Valle Nacional: Micrurus diastema (Shoop & Corkum, 1982). Specimens deposited: USNPC (76375)(H). Notes: In a phylogenetic analyses of the order Proteocephalidea, De Chambrier et al. (2004) evaluated the structure of the clade Proteocephalus and showed that Proteocephalus species are mainly parasites of Palaearctic fishes. This species was transferred to Ophiotaenia by Schmidt (1986).

Proteocephalus sp. Squamata (A): Intestine. GUERRERO: Carretera Acapulco-Aeropuerto: Leptodeira cussiliris (Rosas-Valdéz, 2002). Specimens deposited: CNHE (4399). Notes: See notes to Proteocephalus micruricola.

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Proteocephalus variabilis Brooks Squamata (A): Intestine. JALISCO: Lago de Chapala: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACÁN: Lago de Cuitzeo: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Pátzcuaro: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Zirahuén, Lago de Zacapu: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (3460-70, 3473-74, 3477, 3820-21, 3883, 3900). Notes: See notes to Proteocephalus micruricola.

Pseudophyllidea Carus Pseudophyllidea gen. sp. Amphibia (L): Muscles. OAXACA: Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). Specimens deposited: CNHE (5404).

Acanthocephala (Rudolphi)

Centrorhynchidae van Cleave Centrorhynchus sp. Amphibia (C): Mesentery. JALISCO: Emiliano Zapata: Rhinella marina, Ollotis marmorea (Galicia-Guerrero, 1998). VERACRUZ: Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna El Zacatal: Ollotis valliceps (Guillén- Hernández, 1992), Craugastor rhodopis (Goldberg et al., 2002b); Laguna Escondida: Craugastor rhodopis, Leptodactylus melanonotus (Goldberg et al., 2002b), Lithobates vaillanti ((Goldberg et al., 2002b; Paredes- Calderón et al., 2004); Estación de Biología Los Tuxtlas: Rhinella marina, Lithobates berlandieri, Lithobates vaillanti (Guillén-Hernández, 1992). Specimens deposited: CNHE (3777-78, 4101). Squamata (C): Body cavity, intestine. NAYARIT: Presa Aguamilpa: Ctenosaura pectinata, Phyllodactylus lanei (Mayén-Peña & Salgado- Maldonado, 1998). QUERÉTARO: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85050).

Neoechinorhynchidae Ward Neoechinorhynchus emydis (Leidy) Testudines (A): Intestine. VERACRUZ: Laguna de Alvarado, Río Blanco: Terrapene ornata (Bravo-Hollis, 1946). Specimens deposited: CNHE (567, 573). Notes: The inclusion of the material from both localities in Neoechinorhynchus emyditoides has been suggested (Fisher, 1960; Barger et al., 2004); however, it has been pointed out that Mexican specimens differ from N. emyditoides in several traits (Amin, 2002).

Neoechinorhynchus emyditoides Fisher Testudines (A): Intestine.

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VERACRUZ: Laguna de Alvarado: Trachemys scripta (Barger, 2004). TABASCO: 24 km S from Villahermosa: Trachemys scripta (Barger et al., 2004). Specimens deposited: HWML (45557), USNPC (832354).

Neoechinorhynchus golvani Salgado-Maldonado Amphibia (A): Intestine. GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4456). Notes: This species naturally occurs in freshwater fishes (Pérez-Ponce de León et al., 1996b), so Lithobates cf. forreri represents an accidental host.

Neoechinorhynchus schmidti Barger, Thatcher & Nickol Testudines (A): Intestine. TABASCO: 24 km to S of Villahermosa: Trachemys venusta (Barger, 2004; Barger et al., 2004a). Specimens deposited: USNPC (92883)(H), HWML (17667)(P).

Neoechinorhynchus sp. Testudines (A): Intestine. NUEVO LEÓN: Laguna de Salinillas: Trachemys scripta (Alvarado-Ramírez, 1993).

Oligacanthorhynchidae Petrochenko Oligacanthorhynchidae gen. sp. Amphibia (C): Body cavity, peritoneum. SONORA: NA: Pachymedusa dacnicolor (Goldberg & Bursey, 2002); Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: USNPC (89184, 89819). Squamata (C): Body cavity, mesentery. BAJA CALIFORNIA, COAHUILA, CHIHUAHUA, DURANGO, SINALOA, SONORA: NA: Rhinocheilus lecontei (Goldberg et al., 1998a). BAJA CALIFORNIA SUR: La Paz: Urosaurus nigricaudus (Goldberg et al., 2003a). CHIHUAHUA, SONORA: NA: Crotalus willardi (Goldberg & Bursey, 2000a). HIDALGO: 1 milla S of Santa Mónica: Conopsis lineata (Goldberg & Bursey, 2004c). MICHOACÁN: 38 millas S of Nueva Italia: Salvadora mexicana (Goldberg & Bursey, 2004a). PUEBLA: NA: Oxybelis aeneus (Goldberg & Bursey, 2001). SINALOA: Carretera 15, Palmillas-Escuinapa: Leptodeira maculata (Goldberg & Bursey, 2004c). SONORA: Cananea: Phrynosoma ditmarsi (Goldberg & Bursey, 2000b); Choquincahui: Oxybelis aeneus (Goldberg & Bursey, 2001); Minas Nuevas: Coluber mentovarius (Goldberg & Bursey, 2004a); 20 millas E of Navojoa: Trimorphodon tau (Goldberg & Bursey, 2004a). Specimens deposited: USNPC (89184, 89269, 89819, 90585, 91935, 91978, 92435, 95048-49, 95059).

Oncicola luehei (Travassos) Amphibia (C): Mesentery. VERACRUZ: Estación de Biología Los Tuxtlas: Smilisca cyanosticta (Goldberg et al., 2002b).

Oncicola sp. Amphibia (C): Mesentery. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4111, 4455).

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Prosthenorchis sp. Amphibia (C): Mesentery. VERACRUZ: Laguna Escondida: Rhinella marina (Galicia-Guerrero et al., 2000).

Plagiorhynchidae Golvan Plagiorhynchus sp. Amphibia (C): Mesentery. VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4117).

Polymorphidae Meyer Polymorphus brevis (van Cleave) Amphibia (C): Liver, mesentery. MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerilii (García-Altamirano et al., 1993). Notes: Specimens recorded as Arhythmorhynchus brevis (García-Altamirano et al., 1993), which is currently included in Polymorphus (Amin, 1992). Specimens deposited: CNHE (644). Squamata (C): Body cavity, mesentery. DISTRITO FEDERAL: Lago de Xochimilco: Thamnophis eques (Pérez-Ponce de León et al., 2001). ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). JALISCO: Lago de Chapala: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACÁN: Lago de Cuitzeo: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001); Lago de Pátzcuaro, Lago de Zacapu: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001). Testudines (C): Body cavity, mesentery. MICHOACÁN: Lago de Cuitzeo, Lago de Zacapu: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (3231, 3813-14, 3454-59), HWML (15215).

Polymorphus sp. Amphibia (C): Mesentery. VERACRUZ: Lago de Catemaco: Rhinella marina (Galicia-Guerrero et al., 2000).

Nematoda Rudolphi

Acuarioidea gen. sp. Squamata (L): Stomach. PUEBLA: NA: Sceloporus megalepidurus (Goldberg et al., 2003b). Specimens deposited: USNPC.

Allantonematidae (Pereira) Chitwood & Chitwood Scatonema wuelkeri Bovien Squamata (A): Intestine. CHIHUAHUA: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85051). Notes: Accidental infection; normally this species is a parasite of arthropods.

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Ancylostomatidae (Looss) Globocephalus sp. Amphibia (L): Intestine, stomach. GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4480).

Angiostomatidae Blanchard Angiostoma lamotheargumedoi Falcón-Ordaz, Mendoza-Garfias, Winfield-Perez, Parra-Olea & Pérez- Ponce de León Amphibia (A): Intestine. PUEBLA: Tepanco de López: Pseudoeurycea mixteca (Falcón-Ordaz et al., 2008). Specimens deposited: CNHE (5914-17)(H, P).

Anisakidae (Railliet & Henry) Agamascaris sp. Squamata (A): Intestine. YUCATÁN: Cueva Loltun, Oxkutzcab: Tropidodipsas sartorii (Chitwood, 1938). Specimens deposited: CNHE (3684).

Contracaecum sp. Amphibia (L): Body cavity, intestine, mesentery. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). MICHOACÁN: Lago de Cuitzeo: Lithobates megapoda (CNHE). OAXACA: Presa Cerro de Oro: Rhinella marina (Espinoza-Jiménez et al., 2007). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (3985, 4109, 4469, 5416). Squamata (L): Body cavity, intestine, mesentery, stomach. JALISCO: Lago de Chapala: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACÁN: Lago de Cuitzeo, Lago de Pátzcuaro: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Crocodylia (L): Body cavity, intestine, mesentery, stomach. VERACRUZ: Laguna Nixtamalapan: Crocodylus moreleti (García-Reynoso, 1991). YUCATÁN: Laguna Celestún: Crocodylus moreleti (Moravec, 2001). Specimens deposited: CNHE (2220, 3619-22), IPASCR.

Terranova sp. Squamata (L): Peritoneum. VERACRUZ: Laguna Escondida: Anolis barkeri (Birt et al., 1997).

Ascarididae Baird Dujardinascaris helicina (Molin) Crocodylia (A): Stomach. VERACRUZ: El Morro, Laguna La Mancha: Crocodylus acutus (CNHE); Lago de Catemaco, Laguna Nixtamalapan, Minatitlán: Crocodylus moreleti (García-Reynoso, 1991). YUCATÁN: Estuario Celestún: Crocodylus moreleti (Moravec & Vargas-Vázquez, 2001). Specimens deposited: CNHE (2211, 2237, 2251, 2395-96, 3714), IPASCR.

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Notes: Specimens recorded by García-Reynoso (1991) were identified as Dujardinascaris antipini, but according to Moravec and Vargas-Vázquez (2001) they pertain to Dujardinascaris helicina.

Hexametra chamelensis Caballero-Deloya Squamata (A): Intestine. JALISCO: Estación de Biología Chamela: Agkistrodon bilineatus (Caballero-Deloya, 1980). Specimens deposited: CNHE (2511-12)(H, P).

Ophidascaris ashi Sprent Squamata (A): Stomach. BAJA CALIFORNIA SUR: Región de Los Cabos: Nerodia sp. (Sprent, 1988). Specimens deposited: USNPC (45672).

Ophidascaris ochoterenai Caballero Squamata (A): Intestine. GUERRERO: Puerto de Acapulco: Drymarchon corais (Caballero, 1939b). SONORA: 20 millas E from Navojoa: Trimorphodon tau (Goldberg & Bursey, 2004a). Specimens deposited: CNHE (2218)(H), USNPC (95058). Notes: Sprent (1988) considered this species as species inquirenda.

Ophidascaris sp. Amphibia (L): Body cavity. BAJA CALIFORNIA SUR: Miraflores: Pseudacris regilla (Goldberg et al., 2001). Specimens deposited: USNPC (88588).

Porrocaecum sp. Amphibia (L): Mesentery. VERACRUZ: Laguna Escondida: Craugastor rhodopis, Leptodactylus melanonotus (Goldberg et al., 2002b); Laguna El Zacatal: Craugastor rhodopis (Goldberg et al., 2002b). Squamata (L): Mesentery. SINALOA, SONORA: NA: Thamnophis validus (Goldberg & Bursey, 2004b). Specimens deposited: USNPC (92783).

Ascaridiidae Travassos Ascaridia sp. Squamata (L): Mesentery. HIDALGO: Durango: Lepidophyma gaigeae (Goldberg et al., 2002a). Specimens deposited: USNPC (91757).

Ascaridoidea (Railliet & Henry) Ascaridoidea gen. sp. Amphibia (L): Urinary bladder. VERACRUZ: Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna Escondida: Lithobates vaillanti (Goldberg et al., 2002b).

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Atractidae (Railliet) Atractis impura Caballero Testudines (A): Intestine. COAHUILA: NA: Gopherus sp. (Petter & Douglass, 1976). DISTRITO FEDERAL: Azcapotzalco: Gopherus sp. (Caballero, 1944a). GUERRERO: Puerto de Acapulco: Rhinoclemmys pulcherrima (Dyer & Carr, 1990b). NUEVO LEÓN: Lampazos: Gopherus berlandieri (Peña-Rivera, 1989). QUINTANA ROO: 1.1 km N Carretera 307 a Cobá: Rhinoclemmys areolata (Dyer & Carr, 1990b). SONORA: NA: Gopherus sp. (Petter & Douglass, 1976). Specimens deposited: CNHE (2006-07)(H, P), MNHNP, USNPC (80806).

Cyrtosomum penneri Gambino Squamata (A): Caecum, intestine. BAJA CALIFORNIA: Bahía de San Francisquito: Callisaurus draconoides carmenensis (Gambino & Heyneman, 1960); Isla Angel de la Guarda: Callisaurus draconoides splendidus (Gambino & Heyneman, 1960); NA: Petrosaurus sp. (Gambino & Heyneman, 1960). BAJA CALIFORNIA SUR: Isla Cerralvo: Sceloporus grandaevus (Goldberg et al., 2002c); NA: Callisaurus draconoides gabbii, Gambelia wislizeni, Sceloporus zosteromus rufidorsum (Gambino & Heyneman, 1960). HIDALGO: NA: Sceloporus parvus (Goldberg et al., 2003b). NA: NA: Phrynosoma asio (Gambino & Heyneman, 1960). PUEBLA: NA: Sceloporus variabilis (Goldberg et al., 2003b). SONORA: NA: Callisaurus draconoides gabbii (Gambino & Heyneman, 1960). Specimens deposited: USNPC (92115). Notes: Specimens of Goldberg et al. (2002c, 2003b) were identified as Atractis penneri, a junior synonym of Cyrtosomum penneri in accordance with Bursey and Flanagan (2002). Nematodes from Gambelia wislizeni and Phrynosoma asio were determined by Gambino and Heyneman (1960) as Cyrtosomum readi, a species synonymized with Cyrtosomum penneri (Bowie & Franz, 1974).

Cyrtosomum scelopori Gedoelst Squamata (A): Intestine. NAYARIT: Presa Aguamilpa: Ctenosaura pectinata (Moravec et al., 1997). OAXACA: NA: Ctenosaura oaxacana (Gambino & Heyneman, 1960). PUEBLA: Izúcar de Matamoros: Ctenosaura acanthura (Bravo- Hollis, 1942). SONORA: NA: Ctenosaura hemilopha (Gambino & Heyneman, 1960). VERACRUZ: NA: Basiliscus vittatus (Gambino & Heyneman, 1960); Xalapa: Sceloporus sp. (Moravec et al., 1997). Specimens deposited: CNHE (2004-05, 2646), IPASCR (N-650). Notes: Specimens of Moravec et al. (1997) were identified as Atractis scelopori, a junior synonym of Cyrtosomum scelopori according to Bursey and Flanagan (2002).

Klossinemella caballeroi (Brenes-Madrigal & Bravo-Hollis) Testudines (A): Intestine. CHIAPAS: Río Catazajá: Rhinoclemmys areolata (Dyer & Carr, 1990b). TABASCO: Laguna Emiliano Zapata: Rhinoclemmys areolata (Dyer & Carr, 1990b). Specimens deposited: USNPC (80805). Notes: This species was described as a member of the genus Atractis and transferred to the genus Klossinemella by Bursey and Flanagan (2002).

Klossinemella parvicapiticoronata (Caballero-Rodríguez) Testudines (A): Intestine. VERACRUZ: NA: Staurotypus triporcatus (Caballero-Rodríguez, 1971a).

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Specimens deposited: CNHE (3144-45)(H, P). Notes: Specimens derscribed as Proatractis parvicapiticoronata (Caballero-Rodríguez, 1971a); later, transferred to Klossinemella (Moravec & Thatcher, 1997), and recently considered a probably member of Orientatractis (González-Solís & Moravec, 2004).

Camallanidae Railliet & Henry Camallanus sp. Testudines (A): Intestine, stomach. NUEVO LEON: Laguna de Salinillas: Trachemys scripta (Alvarado-Ramírez, 1993).

Paracamallanus sp. Amphibia (L): Intestine. MICHOACÁN: Manantiales de Cointzio: Lithobates neovolcanica (CNHE). Specimens deposited: CNHE (3997).

Serpinema trispinosum (Leidy) Yeh Amphibia (L): Intestine. GUERRERO: Carretera Acapulco-Aeropuerto: Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). Specimens deposited: CNHE (4470). Squamata (A): Intestine, stomach. MICHOACÁN: Lago de Pátzcuaro: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001). Testudines (A): Intestine, stomach. GUANAJUATO: Acámbaro: Kinosternon hirtipes (CNHE). HIDALGO: Tasquillo: Kinosternon hirtipes (Caballero, 1939c). MICHOACÁN: Lago de Cuitzeo, Lago de Pátzcuaro, Lago de Zacapu, Manantiales de Cointzio: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). TABASCO: Laguna El Espino: Trachemys scripta (Aguilar-Aguilar et al., 2003); Laguna Emiliano Zapata: Rhinoclemmys areolata (Dyer & Carr, 1990b); Río de Chilapa: Dermatemys mawii (Caballero, 1943b).VERACRUZ: Laguna de Alvarado: Terrapene ornata (Caballero, 1939b). YUCATÁN: Aguada Xpoc: Trachemys scripta (Moravec & Vargas- Vázquez, 1998a). Specimens deposited: CNHE (2035-36, 2075, 2081-82, 2581, 2853, 3634, 3750-56, 4470, 4677). Notes: Specimens from Guanajuato and Hidalgo were identified as Camallanus parvus (Caballero, 1939c), a species synonymyzed with Serpinema magathi (Yeh, 1960); Baker (1979) tranferred C. parvus to the genus Serpinema pointing out that this species is probabily a synonym of Serpinema trispinosum. Material from Veracruz was used by Caballero (1939b) to describe Camallanus magnorugosus, a species tranferred to the genus Serpinema (Yeh, 1960), and currently considered a synonym of Serpinema trispinosum (Moravec & Vargas-Vázquez, 1998a). Records from Río de Chilapa, Tabasco, were determined as Camallanus scabrae (Caballero, 1943b), a species synonymyzed with S. trispinosum (Baker, 1979).

Cosmocercidae (Railliet) Aplectana hamatospicula Walton Amphibia (A): Intestine. DISTRITO FEDERAL: Coyoacán: Hyla eximia (Walton, 1940). Specimens deposited: USNPC (42048)(H, P).

Aplectana incerta Caballero Amphibia (A): Intestine.

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CHIAPAS: Río Huixtla: Rhinella marina (Caballero, 1949b). GUERRERO: Carretera Acapulco- Aeropuerto, San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007); Carretera San Juan de los Llanos-Ometepec: Smilisca baudini (Bautista-Guzmán, 2006). JALISCO: Emiliano Zapata: Ollotis marmorea (Galicia-Guerrero et al., 2000). SONORA: NA: Ollotis mazatlanensis, Smilisca baudini (Goldberg & Bursey, 2002).VERACRUZ: Lago de Catemaco: Rhinella marina (Goldberg et al., 2002a); Laguna El Zacatal, Laguna Escondida, Estación de Biología Los Tuxtlas: Craugastor rhodopis (Goldberg et al., 2002a); Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (2025, 2158, 3772, 4097, 4460-61, 5436, 5737)(H, P), USNPC (89799, 89829). Notes: The genus Aplectana was considered a synonym of Oxysomatium (Skrjabin et al., 1951); however, its validity was re-established by Yamaguti (1961).

Aplectana itzocanensis Bravo-Hollis Amphibia (A): Intestine. BAJA CALIFORNIA SUR: Miraflores: Pseudacris regilla (Goldberg et al., 2001). OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). PUEBLA: Izúcar de Matamoros: Rhinella marina, Spea multiplicata (Bravo-Hollis, 1943b). QUERÉTARO: Neblinas: Ollotis nebulifer (Galicia-Guerrero et al., 2000). SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: NA: Ollotis mazatlanensis, Anaxyrus kelloggi, Leptodactylus melanonotus, Pachymedusa dacnicolor, Smilisca baudini (Goldberg & Bursey, 2002). VERACRUZ: Estación de Biología Los Tuxtlas: Smilisca cyanosticta (Goldberg et al., 2002b); Lago de Catemaco: Rhinella marina (Caballero-Deloya, 1974); Laguna El Zacatal: Dendropsophus microcephalus (Goldberg et al., 2002b). Specimens deposited: CNHE (2120-21, 2224, 5409-10)(H, P), USNPC (88585, 89795, 89800, 89810, 89816, 89822, 89839). Notes: Some specimens from Izúcar de Matamoros were described as Aplectana hoffmanni (Bravo-Hollis, 1943b); this species was considered a synonym of A. itzocanensis (Baker, 1985). Material from Lago de Catemaco (Caballero-Deloya, 1974) could pertain to A. incerta (Baker, 1985). The record of Ollotis nebulifer from Querétaro was published as Bufo valliceps.

Aplectana mexicana (Caballero) Amphibia (A): Intestine. CHIAPAS: Tapachula: Dermophis mexicanus (Caballero, 1933a). Specimens deposited: CNHE (1948-49, 2226)(H, P). Notes: Specimens described as Oxysomatium mexicanum by Caballero (1933) and transferred to Aplectana by Ballesteros (1945). Based on this material, Yamaguti (1961) established the genus Neoxysomatoides, currently a synonym of Aplectana (Chabaud, 1978).

Aplectana sp. Amphibia (A): Intestinal caeca, intestine. NUEVO LEÓN: Laguna Montford: Lithobates sp. (Martínez-Villarreal, 1969); Presa Rodrígo Gómez: Ollotis nebulifer (Martínez-Villarreal, 1969). VERACRUZ: Estación de Biología Los Tuxtlas: Rhinella marina, Lithobates berlandieri, Lithobates vaillanti (Guillén-Hernández, 1992). Lago de Catemaco: Ollotis valliceps (Galicia-Guerrero et al., 2000); Laguna Escondida: Rhinella marina (Galicia-Guerrero et al., 2000). Notes: The record of Ollotis nebulifer from Nuevo León was published as Bufo valliceps.

Aplectana waltoni (Skrjabin & Schikhovaloba) Amphibia (A): Intestine. DISTRITO FEDERAL: Coyoacán: Rhinella marina ? (Walton, 1940).

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Specimens deposited: USNPC (42047)(P). Notes: The original name for this species, Aplectana mexicana (Walton, 1940), was changed to Aplectana waltoni because the first species is homonym of the species described by Caballero (1933). According to Baker (1987), this species cannot be classified with certainty to Aplectana. Holotype lost. The host was originally identified as Bufo simus; however, the distribution of B. simus is restricted to South America. In Mexico, the specimens conferred to B. simus correspond to Rhinella marina, but R. marina does not occur in the Distrito Federal (García-Vásquez com. pers.). The most likely scenario is that the host was misidentified.

Cosmocerca acanthurum Falcón-Ordaz, Winfield, Mendoza-Garfias, Parra-Olea & Pérez-Ponce de León Amphibia (A): Intestine. ESTADO DE MÉXICO: Llano Grande: Pseudoeurycea leprosa (Falcón-Ordaz et al., 2007); Texcalyacac: Chiropterotriton orculus (Falcón-Ordaz et al., 2007). Specimens deposited: CNHE (5723-26)(H, P).

Cosmocerca parva Travassos Amphibia (A): Cloaca. VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4098).

Cosmocerca podicipinus Baker & Vaucher Amphibia (A): Cloaca, intestine, stomach. GUERRERO: Carretera Acapulco-Aeropuerto, San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). SINALOA: NA: Lithobates forreri (Goldberg & Bursey, 2002). SONORA: NA: Leptodactylus melanonotus (Goldberg & Bursey, 2002). VERACRUZ: Estación de Biología Los Tuxtlas: Craugastor rhodopis, Smilisca cyanosticta (Goldberg et al., 2002b); Laguna Escondida: Craugastor rhodopis, Leptodactylus melanonotus (Goldberg et al., 2002b); Laguna El Zacatal: Craugastor rhodopis (Goldberg et al., 2002b). Specimens deposited: CNHE (4608-11, 4464, 4468), USNPC (89811, 90734).

Cosmocerca sp. Amphibia (A): Intestine. OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). VERACRUZ: Estación de Biología Los Tuxtlas: Rhinella marina, Dendropsophus ebraccatus, Lithobates berlandieri, Lithobates vaillanti (Guillén-Hernández, 1992); Lago de Catemaco, Laguna Escondida: Rhinella marina (Galicia-Guerrero et al., 2000); Laguna El Zacatal: Ollotis valliceps (Guillén-Hernández, 1992). Specimens deposited: CNHE (4607, 5411-12).

Cosmocercella anothecae Baker & Adamson Amphibia (A): Intestino. VERACRUZ: Cuautlalpan: Anotheca spinosa (Baker & Adamson, 1977). Specimens deposited: USNPC (74590)(H, P).

Cosmocercella haberi Steiner Amphibia (A): Intestino. ESTADO DE MÉXICO: El Mapa, close to the city of Toluca: Hyla plicata (Goldberg et al., 2003c). SONORA: NA: Pachymedusa dacnicolor (Goldberg & Bursey, 2002).

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Specimens deposited: USNPC (89817, 92599).

Cosmocercoides sp. Amphibia (A): Intestine. NUEVO LEÓN: La Laguna (Higueras), La Presita Villarreal (El Carmen), Río Pesquería (Zuazua): Rhinella marina (León-Règagnon et al., 2005b); Río Salinas (El Carmen): Rhinella marina, Ollotis nebulifer (León-Règagnon et al., 2005b); Paraje de los Osos (Villa de Santiago): Ecnomiohyla miotympanum (Martínez-Villarreal, 1969). VERACRUZ: Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4100, 4643-47).

Cosmocercoides variabilis (Harwood) Amphibia (A): Intestine. SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). Specimens deposited: USNPC (89823). Squamata (A): Intestine. BAJA CALIFORNIA SUR: La Laguna: Elgaria paucicarinata (Goldberg & Bursey, 2004d). ESTADO DE MÉXICO: NA: Barisia imbricata (Goldberg et al., 1999). HIDALGO: Zacualtipan: Barisia imbricata (Goldberg et al., 1999). VERACRUZ: San Antonio Ixtatetla (Huayacocotla): Gerrhonotus ophiurus (Goldberg et al., 1999). Specimens deposited: CNHE (3384), USNPC (87246, 88291, 93511).

Cosmocercoides dukae (Holl) Amphibia (A): Cloaca. ESTADO DE MÉXICO: San Pedro Tlaltizapán: Ambystoma lermaensis (Mata-López et al., 2002). Specimens deposited: CNHE (3797). Notes: This species is normally a parasite of molluscs; occurs accidentally in salamanders which feed on these invertebrates (Baker, 1987).

Raillietnema brachyspiculatum Bursey, Goldberg, Salgado-Maldonado & Méndez de la Cruz Squamata (A): Intestine. ESTADO DE MÉXICO: NA: Barisia imbricata (Goldberg et al., 1999). HIDALGO: Zacualtipan: Barisia imbricata (Goldberg et al., 1999). VERACRUZ: Estación de Biología Los Tuxtlas: Lepidophyma tuxtlae (Bursey et al., 1998). Specimens deposited: CNHE (3190-92, 3386)(H, P), USNPC (87528, 88294).

Raillietnema sp. Amphibia (A): Intestine. OAXACA: Presa Cerro de Oro: Rhinella marina (Espinoza-Jiménez et al., 2007). Specimens deposited: CNHE (5413).

Cylindrocorporidae Goodey Longibucca sp. Testudines (A): Stomach. GUERRERO: Puerto de Acapulco: Rhinoclemmys pulcherrima (Dyer & Carr, 1990b). Specimens deposited: USNPC (80808).

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Cystidicolidae (Skrjabin) Spinitectus osorioi Choudhury & Pérez-Ponce de León Squamata (A): Intestine. MICHOACÁN: Lago de Pátzcuaro: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Specimens deposited: CNHE (3625). Notes: This species is a typical parasite of fishes.

Diaphanocephalidae Travassos Kalicephalus inermis Molin Squamata (A): Intestine. SONORA: 20 miles E from Navojoa: Trimorphodon tau (Goldberg & Bursey, 2004a). VERACRUZ: El Bastonal (Volcán Santa Marta): Atropoides olmec (Cabrera-Guzmán et al., 2008). Specimens deposited: CNHE (5617); USNPC (95057).

Kalicephalus inermis coronellae (Ortlepp) Squamata (A): Esophagus, intestine, stomach. GUERRERO: Puerto de Acapulco: Drymarchon corais (Caballero, 1939b). MICHOACÁN: Tancítaro: Crotalus triseriatus (Comroe, 1948). VERACRUZ: Omealca: Bothrops asper (Caballero, 1938d). Specimens deposited: CNHE (1980-82, 1988-89); USNPC (37048). Notes: Specimens from Guerrero and Veracruz were described as Kalicephalus humilis (Caballero, 1938, 1939b); those from Michoacán were identified as Kalicephalus conoides (Comroe, 1948); however, both species are synonyms of Kalicephalus inermis coronellae (Schad, 1962). This species was included in the subgenus Inermiformis by Lichtenfels (1980).

Kalicephalus inermis macrovulvus (Caballero) Squamata (A): Esophagus, intestine. DISTRITO FEDERAL: San Angel: Crotalus molossus (Cid del Prado, 1971). OAXACA: Valle Nacional: Cryophis hallbergi (Shoop et al., 1982). Specimens deposited: CNHE (2462-53), USNPC (76608). Notes: Specimens from Distrito Federal and Oaxaca were described as Kalicephalus macrovulvus (Cid del Prado, 1971) and Kalicephalus (Inermiformis) macrovulvus (Shoop et al., 1982), respectively; however, Kalicephalus macrovulvus is a subspecies of Kalicephalus inermis (Schad, 1962). This species was included in the subgenus Inermiformis by Lichtenfels (1980).

Kalicephalus subulatus Molin Squamata (A): Esophagus, intestine. CHIAPAS: Sabana de San Quintín: Boa constrictor (Ubelaker & Dailey, 1966). OAXACA: Presa de Temascal: Boa constrictor (CNHE). Specimens deposited: CNHE (2250). Notes: This species was included in the subgenus Inermiformis by Lichtenfels (1980).

Dioctophymatidae (Railliet) Eustrongylides sp. Amphibia (L): Body cavity, mesentery, muscles. MICHOACÁN: Lago de Cuitzeo: Lithobates megapoda (Ramírez-Lezama & Osorio-Sarabia, 2002); Lago de Pátzcuaro: Lithobates dunni (Pulido-Flores, 1994).

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Specimens deposited: CNHE (2269, 3980-81). Crocodylia (L): Muscles. VERACRUZ: Laguna Nixtamalapan: Crocodylus moreleti (García-Reynoso, 1991). Specimens deposited: CNHE (2267). Squamata (L): Body cavity, dermis, mesentery. DISTRITO FEDERAL: Lago de Xochimilco: Thamnophis eques, Thamnophis melanogaster (CNHE). GUANAJUATO: Laguna de Yuriria: Thamnophis eques (Cabrera-Guzmán, 2008). MICHOACÁN: Lago de Cuitzeo, Lago de Zacapu: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001); Lago de Pátzcuaro: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Specimens deposited: CNHE (3626-28, 5016-17, 5599).

Dracunculidae (Stiles) Dracunculus ophidensis Brackett Squamata (A): Mesentery. ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). JALISCO: Lago de Chapala: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). MICHOACÁN: Lago de Cuitzeo, Lago de Pátzcuaro, Lago de Zacapu, Lago de Zirahuén: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (3637-40); HWML (15223).

Gnathostomatidae Railliet Gnathostoma binucleatum Almeyda-Artigas Squamata (L): Muscles. OAXACA-VERACRUZ: Cuenca del Papaloapan (Temascal-Tlacotalpan): Boa constrictor, Nerodia rhombifer (Mosqueda-Cabrera, 2003). Testudines (L): Muscles. OAXACA: Presa de Temascal: Staurotypus triporcatus, Trachemys scripta (Lamothe-Argumedo, 1997). OAXACA-VERACRUZ: Cuenca del Papaloapan (Temascal-Tlacotalpan): Kinosternon integrum, Staurotypus triporcatus, Trachemys scripta (Mosqueda-Cabrera, 2003). SINALOA: Escuinapa: NA turtle (León-Règagnon et al., 2003). Specimens deposited: CNHE (4534).

Gnathostoma sp. Amphibia (L): Muscles. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (García-Prieto et al., 2003; Cabrera-Guzmán et al., 2007). OAXACA: Presa Cerro de Oro: Lithobates sp. (Lamothe-Argumedo, 1997); Paso Canoa: Lithobates sp. (Osorio-Sarabia et al., 2003); Presa de Temascal: Smilisca baudini (Lamothe-Argumedo, 1997); Río Usila: Lithobates montezumae (Lamothe-Argumedo, 1997). VERACRUZ: Cosamaloapan: Lithobates berlandieri (Lamothe-Argumedo, 1997). Specimens deposited: CNHE (4167, 4525). Notes: Hosts from Presa Cerro de Oro and Paso Canoa, Oaxaca were misidentified as Rana temporaria, an European species. Crocodylia (L): Muscles. COLIMA: Laguna de Amela: Crocodylus acutus (García-Márquez, 2005). OAXACA: Presa Cerro de Oro: Crocodylus moreleti (Lamothe-Argumedo, 1997). Specimens deposited: CNHE (4813). Squamata (L): Muscles.

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OAXACA: Presa de Temascal: Boa constrictor (Lamothe-Argumedo, 1997). VERACRUZ: Tlacotalpan: Nerodia rhombifer (Lamothe-Argumedo, 1997). Testudines (L): Muscles. OAXACA: Presa Cerro de Oro: Staurotypus salvini, Staurotypus triporcatus, Trachemys scripta (Lamothe-Argumedo, 1997).

Gnathostoma turgidum Stossich Amphibia (L): Muscles. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates zweifeli (Mosqueda-Cabrera, 2003). Testudines (L): Muscles. GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Kinosternon integrum (Mosqueda-Cabrera, 2003).

Spiroxys amydae Cobb Testudines (L): Gastric wall. NUEVO LEÓN: Río Pesquería: Apalone spinifera (Peña-Rivera et al., 1994). Testudines (A): Stomach. NUEVO LEÓN: Río Pesquería: Apalone spinifera (Peña-Rivera et al., 1994).

Spiroxys contortus (Rudolphi) Amphibia (A): Stomach. MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerilii (García-Altamirano et al., 1993), Lithobates dunni (Pulido-Flores, 1994). Specimens deposited: CNHE (2276-77). Testudines (A): Interstine, stomach. MICHOACÁN: Lago de Cuitzeo, Lago de Pátzcuaro, Lago de Zirahuén, Lago de Zacapu, Manantiales de Cointzio: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). NA: NA: Terrapene ornata (Caballero, 1939a). YUCATÁN: Aguada Xpoc: Trachemys scripta (Moravec & Vargas-Vázquez, 1998a). Specimens deposited: CNHE (2040, 3740-47), IPASCR.

Spiroxys corti Caballero Amphibia (A): Intestine. DISTRITO FEDERAL: NA: Lithobates montezumae (Caballero, 1935b). Notes: Holotype lost. Testudines (A): Stomach. PUEBLA: Izúcar de Matamoros: Kinosternon hirtipes, Kinosternon integrum (CNHE). Specimens deposited: CNHE (2585, 2587).

Spiroxys sp. Amphibia (L): Intestine, mesentery, stomach. ESTADO DE MÉXICO: San Pedro Tlaltizapán: Ambystoma lermaensis (Mata-López et al., 2002). MICHOACÁN: Lago de Zacapu: Ambystoma andersoni (CNHE). SONORA: NA: Leptodactylus melanonotus (Goldberg & Bursey, 2002). VERACRUZ: Laguna Escondida: Leptodactylus melanonotus (Goldberg et al., 2002b), Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (3804, 3806, 3808, 4107, 4601, 5760), USNPC (89814). Amphibia (A): Intestine.

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MICHOACÁN: Lago de Cuitzeo: Lithobates megapoda (CNHE); Lago de Zacapu: Lithobates dunni (CNHE). Specimens deposited: CNHE (3994-95). Testudines (A): Stomach. NUEVO LEÓN: Laguna de Salinillas: Trachemys scripta (Alvarado-Ramírez, 1993).

Spiroxys susanae Caballero Amphibia (A): Intestine, stomach. ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (CNHE). Specimens deposited: CNHE (3987-88). Squamata (A): Intestine, stomach. ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis marcianus (Cid del Prado, 1971), Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); San Pedro Tultepec: Thamnophis marcianus, Thamnophis eques (Caballero, 1941c). Specimens deposited: CNHE (2378-79, 2464, 3633, 3642-44)(H, P).

Spiroxys triretrodens Caballero Testudines (A): Stomach. GUANAJUATO: Acámbaro: Chrysemys sp. (CNHE); Laguna de Yuriria: Kinosternon hirtipes (Cid del Prado, 1971); Río Lerdo: Kinosternon hirtipes (Caballero & Zerecero, 1943). PUEBLA: Izúcar de Matamoros: Kinosternon hirtipes (CNHE). Specimens deposited: CNHE (2083-84, 2465, 2586, 3692)(H, P).

Gongylonematidae (Hall) Gongylonema sp. Squamata (L): Intestine. DURANGO: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85040).

Hedruridae (Railliet) Hedruris siredonis Baird Amphibia (A): Intestine, stomach. DISTRITO FEDERAL: Lago de Xochimilco: Ambystoma tigrinum (Caballero & Bravo-Hollis, 1938). MICHOACÁN: Lago de Zacapu: Ambystoma andersoni, Lithobates dunni (CNHE), Ambystoma sp. (Dyer & Brandon, 1973); San José Lagunillas: Ambystoma ordinarium (Dyer & Brandon, 1973). PUEBLA: Laguna Quechulac: Ambystoma sp. (USNPC); Laguna de Alchichica: Ambystoma taylori (Dyer & Brandon, 1973; Dyer, 1984). Specimens deposited: CNHE (2033), USNPC (72187-89, 77156, 80406). Testudines (A): Intestine, stomach. MICHOACÁN: Lago de Zacapu, Manantiales de Cointzio: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (3761-62).

Heterakidae Railliet & Henry Strongyluris acaudata Caballero Squamata (A): Intestine. DISTRITO FEDERAL: NA: Sceloporus torquatus torquatus (Caballero, 1941c).

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Specimens deposited: CNHE (2380, 2381)(H, P). Notes: According to Moravec et al. (1990), all North and Central American species are closely related or even identical; however, Bursey et al. (2003) considered Strongyluris acaudata as an independent and valid species.

Strongyluris similis Caballero Squamata (A): Intestine. BAJA CALIFORNIA SUR: 12 Km S de San Antonio: Petosaurus thalassinus (Bursey & Goldberg, 2007); La Paz: Urosaurus nigricaudus (Goldberg et al., 2003a); San José de Comondú: Petrosaurus repens (Bursey & Goldberg, 2007). DISTRITO FEDERAL: San Angel: Sceloporus torquatus (Caballero, 1938c; Cid del Prado, 1971). DURANGO, GUANAJUATO, HIDALGO, MORELOS, SAN LUIS POTOSÍ, SINALOA, SONORA, TAMAULIPAS, VERACRUZ: NA: Sceloporus jarrovi (Goldberg et al., 1996). NA: NA: Sceloporus grammicus, Sceloporus mucronatus (Goldberg et al., 2003b). OAXACA: NA: Sceloporus formosus (Goldberg et al., 2003b). Specimens deposited: CNHE (1992-93, 2466)(H, P), USNPC (85047, 92433, 97283, 97288). Notes: According to Moravec et al. (1990), all North and Central American species are closely related or even identical; however, Bursey et al. (2003) considered Strongyluris similis as an independent and valid species.

Strongyluris sp. Amphibia (A): Intestine. VERACRUZ: Laguna Escondida: Craugastor rhodopis (Goldberg et al., 2002b). Squamata (A): Intestine. NAYARIT: Presa Aguamilpa: Sceloporus nelsoni (Mayén-Peña & Salgado-Maldonado, 1998). Notes: Specimens from Nayarit could pertain to Strongyluris similis (Mayén-Peña & Salgado-Maldonado, 1998).

Kathlaniidae (Lane) Travassos Chabaudgolvania elongata (Baird) Amphibia (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Ambystoma tigrinum (Caballero & Bravo-Hollis, 1938; Dyer & Brandon, 1973). ESTADO DE MÉXICO: La Marquesa: Ambystoma altamirani (Dyer & Brandon, 1973); Laguna de Zumpango: Ambystoma velasci (Dyer & Brandon, 1973); Nopaltepec: Ambystoma tigrinum (Dyer & Brandon, 1973); San Pedro Tlaltizapán: Ambystoma lermaensis (Mata-López et al., 2002). NA: NA: Ambystoma tigrinum (Baird, 1858). MICHOACÀN: Lago de Zacapu: Ambystoma andersoni (Dyer & Brandon, 1973; Dyer, 1988). PUEBLA: Lago La Mina Preciosa, Laguna Atexcac, Laguna Quechulac: Ambystoma sp. (Dyer, 1986); Laguna de Alchichica: Ambystoma taylori (Dyer & Brandon, 1973). Specimens deposited: BM(NH) (608625)(H), CNHE (2097, 3801-03), SIUC (52A.0), USNPC (72190-94, 80408). Notes: This species was originally described as Leptodera elongata (Baird, 1858), and subsequently tranferred to Spironoura (Walton, 1932) and then to Megalobatrachonema (Chabaudgolvania) (Baker, 1986a). The genus Spironoura is a synonym of Falcaustra (Teixeira de Freitas & Lent, 1941), and Chabaudgolvania is an independent genus (Richardson & Adamson, 1990). Specimens of Dyer (1986) and Dyer and Brandon (1973) were recorded as Falcaustra elongata; those of Caballero and Bravo-Hollis (1938) as Spironoura elongata and material of Dyer (1988) as Megalobatrachonema (Chabaudgolvania) elongata.

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Chabaudgolvania sp. Amphibia (A): Intestine. NUEVO LEON: La Laguna (Higueras): Lithobates berlandieri (León-Règagnon et al., 2005). Specimens deposited: CNHE (4648).

Cruzia mexicana Khalil Squamata (A): Intestine. TABASCO: Frontera: NA lizard (Khalil, 1927). Testudines (A): Caecum, intestine. GUERRERO: Puerto de Acapulco: Rhinoclemmys pulcherrima (Dyer & Carr, 1990b). QUINTANA ROO: 1.1 km N Carretera 307 a Cobá: Rhinoclemmys areolata (Dyer & Carr, 1990b). Specimens deposited: USNPC (80809).

Cruzia morleyi Pearse Amphibia (A): Intestine. OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). VERACRUZ: Lago de Catemaco: Rhinella marina (Caballero-Deloya, 1974). YUCATÁN: Cenote Xtoloc: Rhinella marina (Pearse, 1936). Specimens deposited: CNHE (2228, 5414-15, 5427-28), UMMZ (319)(H). Notes: Specimens from Veracruz were identified as Neocruzia morleyi, currently a synonym of Cruzia morleyi (Chabaud, 1978).

Cruzia tropidodipsi Ubelaker & Yonus Squamata (A): Mouth. OAXACA: 38 miles West of Tehuantepec: Tropidodipsas fasciata (Ubelaker & Yonus, 1965). Specimens deposited: USNPC (60492)(H, P).

Falcaustra affinis (Leidy) Testudines (A): Intestine. MICHOACÁN: Lago de Pátzcuaro, Manantiales de Cointzio: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (3758-60). Notes: Identification of these specimens was based on the description of Falcaustra affinis by Caballero (1939a); however, according to Bursey and Goldberg (2001), the specimens determined by this author correspond with F. concinnae (see below). Moreover, F. affinis is currently a species inquirenda (Bursey & Goldberg, 2001).

Falcaustra caballeroi Chabaud & Golvan Amphibia (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Caballero, 1935b). Specimens deposited: CNHE (2546)(H, P). Notes: Specimens described as Dibulbiger longispiculis (Caballero, 1935b); however, the genus Dibulbiger was considered synonym of Falcaustra by Chabaud and Golvan (1957). The name Falcaustra longispicula is pre-occupied, and for this reason Chabaud and Golvan (1957) designed Caballero’s material as Falcaustra caballeroi. According to Baker (1986b), F. caballeroi is apparently markedly similar to F. affinis.

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Falcaustra concinnae Mackin Testudines (A): Intestine. NA: NA: NA turtle (Caballero, 1939a). Specimens deposited: CNHE (2096). Notes: Specimens recorded as Spironoura affinis (Caballero, 1939a), but the genus Spironoura is a synonym of Falcaustra (Teixeira de Freitas and Lent, 1941); these same authors considered that the specimens of Caballero belong to F. concinnae, a view shared by Bursey and Goldberg (2001).

Falcaustra inglisi (Anderson) Amphibia (A): Intestine. SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: USNPC (89186).

Falcaustra intermedia (Caballero) Testudines (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Kinosternon hirtipes (Caballero, 1939a). GUANAJUATO: Valle de Santiago: Kinosternon hirtipes (Caballero-Deloya, 1960). Specimens deposited: CNHE (2094, 2162)(H). Notes: Specimens from Caballero (1939a) were determined as Spironoura intermedia; later, the genus Spironoura was considered a synonym of Falcaustra (Teixeira de Freitas & Lent, 1941).

Falcaustra lowei Bursey & Goldberg Amphibia (A): Intestine. SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: USNPC (89178)(H).

Falcaustra mexicana Chabaud & Golvan Amphibia (A): Intestine. DISTRITO FEDERAL: Contreras: Ambystoma altamirani (Bravo-Hollis & Caballero, 1940). ESTADO DE MÉXICO: La Marquesa: Ambystoma altamirani (Dyer & Brandon, 1973); Nevado de Toluca: Ambystoma rivularis (Dyer & Brandon, 1973); Río Frío: Ambystoma leorae (Dyer & Brandon, 1973); San Pedro Tlaltizapán: Ambystoma lermaensis (Mata-López et al., 2002). MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerili (García-Altamirano et al., 1993), Lithobates dunni (Pulido-Flores, 1994); Lago de Zacapu: Ambystoma andersoni (CNHE). PUEBLA: Apizaco: Ambystoma tigrinum (Dyer & Brandon, 1973). Specimens deposited: CNHE (2126, 2301, 2306, 3798, 4602)(H, P), USNPC (72195-98). Notes: Specimens from Bravo-Hollis and Caballero (1940) were identified as Spironoura cryptobranchi; later, Chabaud and Golvan (1957) established these as type material of Falcaustra mexicana. Records of Falcaustra mascula from Estado de México and Puebla (Dyer & Brandon, 1973), were invalidated by Baker (1986b), including this material in Chabaud and Golvan’s species. Finally, Pérez-Ponce de Léon et al., (2001) re-examined specimens from Michoacán identified as Falcaustra chabaudi (García-Altamirano et al., 1993; Pulido-Flores, 1994) and re-assigned them to F. mexicana. Squamata (A): Intestine. MICHOACÁN: Lago de Pátzcuaro: Thamnophis eques (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). Specimen deposited: CNHE (3623).

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Falcaustra ranae Walton Amphibia (A): Intestine. DISTRITO FEDERAL: NA: Lithobates sp. (Caballero-Deloya, 1960). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (CNHE). Specimens deposited: CNHE (2163, 3986).

Falcaustra sp. Testudines (A): Intestine. QUINTANA ROO: 1.1 km N Carretera 307 to Cobá: Rhinoclemmys areolata (Dyer & Carr, 1990b). YUCATAN: Aguada Xpoc: Trachemys scripta (Moravec & Vargas-Vázquez, 1998a). Specimens deposited: CNHE (2852), IPASCR, USNPC (80804). Notes: Specimens from Yucatan were identified as Falcaustra affinis (Moravec & Vargas-Vázquez, 1998a); however, Bursey and Goldberg (2001) considered that this material represents an undescribed species.

Falcaustra wardi (Mackin) Testudines (A): Stomach. MICHOACÁN: Lago de Zacapu: Kinosternon hirtipes (Pérez-Ponce de León et al., 2001). Specimens deposited: CNHE (3757).

Mermithidae Braun Mermis sp. Squamata (L): Stomach. DURANGO: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85052). Notes: Accidental infection; normally this species is a parasite of arthropods.

Micropleuridae (Baylis & Daubney) Micropleura sp. Crocodylia (A): Body cavity. YUCATÁN: Estuario Celestún: Crocodylus moreleti (Moravec & Vargas-Vázquez, 1998a). Specimens deposited: IPASCR. Notes: These specimens may belong to Micropleura vazi; the absence of male specimens precludes definitive identification to species (Moravec & Vargas-Vázquez, 1998a).

Molineidae (Skrjabin & Schulz) Oswaldocruzia pipiens Walton Amphibia (A): Intestine, stomach. BAJA CALIFORNIA: Cataviña: Pseudacris regilla (Goldberg et al., 2001). BAJA CALIFORNIA SUR: Miraflores, San Ignacio: Pseudacris regilla (Goldberg et al., 2001). NUEVO LEÓN: Laguna Montford, Presa Rodrígo Gómez: Lithobates sp. (Martínez-Villarreal, 1969); Río Pesquería: Rhinella marina (Martínez- Villarreal, 1969). SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: NA: Ollotis mazatlanensis, Leptodactylus melanonotus (Goldberg & Bursey, 2002); Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: USNPC (88587, 89188, 89801, 89812, 89825). Squamata (A): Intestine, stomach.

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ESTADO DE MÉXICO: NA: Barisia imbricata (Goldberg et al., 1999). HIDALGO: Zacualtipan: Barisia imbricata (Goldberg et al., 1999). Specimens deposited: CNHE (3387), USNPC (99292).

Oswaldocruzia sp. Amphibia (A): Intestine. OAXACA: Presa Cerro de Oro: Rhinella marina (Espinoza-Jiménez et al., 2007). VERACRUZ: Estación de Biología Los Tuxtlas: Rhinella marina, Lithobates berlandieri, Lithobates vaillanti, Smilisca baudinii (Guillén-Hernández, 1992), Craugastor rhodopis, Smilisca cyanosticta (Goldberg et al., 2002b); Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna El Zacatal: Craugastor rhodopis (Goldberg et al., 2002b), Ollotis valliceps (Guillén-Hernández, 1992); Laguna Escondida: Craugastor rhodopis, Leptodactylus melanonotus, Lithobates vaillanti (Goldberg et al., 2002b). Specimens deposited: CNHE (5426). Squamata (A): Intestine. BAJA CALIFORNIA SUR: La Laguna: Elgaria paucicarinata (Goldberg & Bursey, 2004d). Specimens deposited: USNPC (93512).

Oswaldocruzia subauricularis (Rudolphi) Amphibia (A): Intestine, stomach. CHIAPAS: Río Huixtla: Rhinella marina (Caballero, 1949b). GUERRERO: Carretera Acapulco- Aeropuerto, San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). VERACRUZ: Estación de Biología Los Tuxtlas, Lago de Catemaco: Smilisca baudini (CNHE); Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004). YUCATÁN: Cenote Xtoloc: Rhinella marina (Pearse, 1936). Specimens deposited: CNHE (2027, 2596-97, 4103-04, 4481-84, 4618), UMMZ (329).

Onchocercidae (Leiper) Foleyellides striatus (Ochoterena & Caballero) Amphibia (A): Body cavity, mesentery. DISTRITO FEDERAL: Lago de Xochimilco: Lithobates montezumae (Ochoterena & Caballero, 1932; Caballero, 1935b). ESTADO DE MÉXICO: Ciénaga de Lerma: Lithobates montezumae (CNHE). GUERRERO: Carretera Acapulco-Aeropuerto, San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). MICHOACÁN: Lago de Cuitzeo: Lithobates megapoda (CNHE); Lago de Zacapu: Lithobates dunni (CNHE). NA: NA: Lithobates sp. (Ochoterena & Caballero, 1932). SINALOA: NA: Lithobates forreri, Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: CNHE (2448, 3989-90, 3993, 4473-75)(H, P), USNPC (8911, 89187, 89824, 90735). Notes: The species recorded originally as Chandlerella striata (Ochoterena & Caballero, 1932), was transferred to Foleyellides by Caballero (1935b). It was subsequently included into the genera Foleyella (Witenberg & Gerichter, 1944), and Waltonella (Bain & Prod’hon, 1974). The validity of Foleyellides was reinstated by Esslinger (1986b).

Icosiella sp. Amphibia (A): Uninary bladder. YUCATAN: Cenote Xtoloc: Rhinella marina (Pearse, 1936).

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Macdonaldius andersoni Chabaud & Frank Squamata (A): Abdominal arteries. SONORA: NA: Heloderma suspectum (CNHE). Specimens deposited: CNHE (3664).

Macdonaldius colimensis Telford Squamata (A): Post vena cava in vicinity of kidneys and in renal portal vein. COLIMA: Manzanillo: Boa constrictor, Trimorphodon biscutatus (Telford, 1965a). Specimens deposited: USNPC (82137)(H, P).

Macdonaldius grassi (Caballero) Squamata (A): Peritoneum. CHIHUAHUA: NA: Sceloporus jarrovi (Goldberg et al., 1996). DISTRITO FEDERAL: Barranca del Muerto, Chapultepec: Sceloporus sp. (Caballero, 1954); San Angel: Sceloporus torquatus (Cid del Prado, 1971). DURANGO, GUANAJUATO, HIDALGO, SAN LUIS POTOSI: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: CNHE (2346-47, 2377)(H, P), USNPC (85041). Notes: Species originally described as member of Saurofilaria (Caballero, 1954), a genus considered as a synonym of Macdonaldius (Chabaud & Frank, 1960).

Macdonaldius oschei Chabaud & Frank Squamata (A): Cephalic and mesenteric arteries. COLIMA: Manzanillo: Boa constrictor, Clelia clelia, Conophis vittatus, Crotalus basiliscus, Drymarchon corais, Lampropeltis sp., Trimorphodon biscutatus (Telford, 1965a). Notes: According to Baker (1987), the records of this species in Colima are doubtful.

Macdonaldius seetai Khanna Squamata (A): Portal vein. COLIMA: Manzanillo: Trimorphodon biscutatus (Telford, 1965a).

Ochoterenella caballeroi Esslinger Amphibia (A): Mesentery. CHIAPAS: Río Huixtla: Rhinella marina (Esslinger, 1987). Specimens deposited: CNHE (2333-34)(H, P). Notes: Specimens identified by Caballero (1944b) as Ochoterenella digiticauda, and re-determined as O. caballeroi (Esslinger, 1987).

Ochoterenella chiapensis Esslinger Amphibia (A): Mesentery. CHIAPAS: Río Huixtla: Rhinella marina (Esslinger, 1988a). Specimens deposited: CNHE (2384, 2451)(H, P). Notes: Specimens identified by Caballero (1944b) as Ochoterenella digiticauda, and re-determined as O. chiapensis (Esslinger, 1988a).

Ochoterenella digiticauda Caballero Amphibia (A): Body cavity, mesentery.

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CHIAPAS: Río Huixtla: Rhinella marina (Caballero, 1944b). JALISCO: Emiliano Zapata: Rhinella marina (Galicia-Guerrero et al., 2000). MICHOACÁN: Lago de Pátzcuaro: Lithobates dunni (Pulido-Flores, 1994). OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). VERACRUZ: Lago de Catemaco: Rhinella marina (Esslinger, 1986a; Goldberg et al., 2002b); Laguna Escondida: Lithobates vaillanti (Goldberg et al., 2002b); Ejido Lázaro Cárdenas: Rhinella marina (Esslinger, 1986a). Specimens deposited: CNHE (1906, 2093, 2314, 2522, 3775, 5424-25)(H, P).

Ochoterenella figueroai Esslinger Amphibia (A): Body cavity, mesentery. CHIAPAS: Río Huixtla: Rhinella marina (Esslinger, 1988b). Specimens deposited: CNHE (1896). Notes: Specimens identified by Caballero (1944b) as Ochoterenella digiticauda, and re-determined as O. figueroai (Esslinger, 1988b).

Ochoterenella lamothei Esslinger Amphibia (A): Body cavity. CHIAPAS: Río Huixtla: Rhinella marina (Esslinger, 1988b). Specimens deposited: USNPC (80277, 80278)(H, P).

Ochoterenella nanolarvata Esslinger Amphibia (A): Mesentery. OAXACA: Tuxtepec: Rhinella marina (Esslinger, 1987). Specimens deposited: CNHE (2336-37)(H, P). Notes: Specimens deposited at CNHE as Ochoterenella digiticauda, and re-determined as O. nanolarvata (Esslinger, 1987).

Ochoterenella sp. Amphibia (A): Body cavity, mesentery. VERACRUZ: Lago de Catemaco: Ollotis valliceps (Galicia-Guerrero et al., 2000); Laguna Escondida: Rhinella marina (Guillén-Hernández, 1992). Notes: Specimens from Lago de Catemaco were registered as “Filaria” (Guillén-Hernández, 1992), and later as Ochoterenella sp. (Galicia-Guerrero et al., 2000).

Oswaldofilaria brevicaudata (Rodhain & Vuylsteke) Freitas & Lent Squamata (A): Mesentery. GUERRERO: Acapulco: Iguana iguana (Caballero, 1939b). Specimens deposited: CNHE (1923).

Piratuba lanceolata Peláez & Pérez-Reyes Squamata (A): Body cavity. VERACRUZ: Laguna Encantada: Sceloporus variabilis (Peláez & Pérez-Reyes, 1960). Notes: According to Peláez and Pérez-Reyes (1960), type material was deposited at Colección del Laboratorio de Parasitología de la Escuela Nacional de Ciencias Biológicas (Instituto Politécnico Nacional), Mexico City. This collection disappeared in 1960s and the types are now lost.

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Piratuba prolifica Peláez & Pérez-Reyes Squamata (A): Body cavity. GUERRERO: Aserradero de Omiltemi, 25 km NW from Chilpancingo: Sceloporus omiltemanus (Peláez & Pérez-Reyes, 1958). SINALOA: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85044). Notes: According to Peláez and Pérez-Reyes (1958), type material was deposited at Colección del Laboratorio de Parasitología de la Escuela Nacional de Ciencias Biológicas (Instituto Politécnico Nacional), Mexico City; however, this collection disappeared in 60s.

Piratuba sp. Squamata (L): Blood vessels. VERACRUZ: Estación de Biología Los Tuxtlas: Anolis tropidonotus, Corytophanes hernandezi (Lowichik et al., 1988). Squamata (A): Heart. VERACRUZ: Estación de Biología Los Tuxtlas: Corytophanes hernandezi (Lowichik et al., 1988).

Oxyuridae Cobbold Oxyuridae gen. sp. COAHUILA: Cuatro Ciénagas: Terrapene coahuila (Guajardo-Martínez, 1984).

Pharyngodonidae Travassos Alaeuris caballeroi Petter & Douglass Testudines (A): Intestine. COAHUILA: NA: Gopherus flavomarginatus (Petter & Douglass, 1976). NUEVO LEÓN: Monterrey, Villaldama: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus agassizi (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Alaeuris gopheri gopheri Petter & Douglass Testudines (A): Intestine. COAHUILA: NA: Gopherus flavomarginatus (Petter & Douglass, 1976). NUEVO LEÓN: Marin, Monterrey, San Nicolás de los Garza: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus flavomarginatus (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Alaeuris gopheri pudica Petter & Douglass Testudines (A): Intestine. SONORA: NA: Gopherus agassizi (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Alaeuris hirsutus Sandground Squamata (A): Intestine. YUCATÁN: Chichén-Itzá: Iguana iguana (Sandground, 1929). Specimens deposited: USNPC (76040)(H).

Alaeuris kinsellai kinsellai Petter & Douglass Testudines (A): Intestine.

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COAHUILA: NA: Gopherus flavomarginatus (Petter & Douglass, 1976). NUEVO LEÓN: Marin, Monterrey, Villaldama: Gopherus berlandieri (Peña-Rivera, 1989). Specimens deposited: MHNP(H).

Alaeuris kinsellai sonorae Petter & Douglass Testudines (A): Intestine. SONORA: NA: Gopherus agassizi (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Alaeuris longicollis (Walton) Testudines (A): Intestine. COAHUILA: NA: Gopherus flavomarginatus (Petter & Douglass, 1976). NUEVO LEÓN: Marin, Monterrey, San Nicolás de los Garza: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus agassizi (Petter & Douglass, 1976). Specimens deposited: MHNP.

Alaeuris mazzottii Petter & Douglass Testudines (A): Intestine. COAHUILA: NA: Gopherus flavomarginatus (Petter & Douglass, 1976). NUEVO LEÓN: San Nicolás de los Garza, Villaldama: Gopherus berlandieri (Peña-Rivera, 1989). Specimens deposited: MHNP(H).

Alaeuris mexicana Moravec, Salgado-Maldonado & Mayén-Peña Squamata (A): Intestine. NAYARIT: Presa Aguamilpa: Ctenosaura pectinata (Moravec et al., 1996; Mayén-Peña & Salgado- Maldonado, 1998). VERACRUZ: Xalapa: Ctenosaura pectinata (CNHE). Specimens deposited: CNHE (2648-50)(H, P).

Alaeuris paramazzottii Petter & Douglass Testudines (A): Intestine. SONORA: NA: Gopherus agassizi (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Gopheruris aspicula Petter & Douglass Testudines (A): Colon, intestine. SONORA: NA: Gopherus sp. (Petter & Douglass, 1976). NUEVO LEÓN: Marin, San Nicolás de los Garza: Gopherus berlandieri (Peña-Rivera, 1989). Specimens deposited: MHNP(H).

Ozolaimus cirratus (von Linstow) Squamata (A): Intestine. GUERRERO: Zihuatanejo: Iguana iguana (Cid del Prado, 1971). Specimens deposited: CNHE (1991).

Ozolaimus ctenosauri Caballero Squamta (A): Intestine.

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DISTRITO FEDERAL: Chapultepec: Crotalus polystictus (Caballero, 1939b). GUERRERO: Iguala: Ctenosaura acanthura (Bravo-Hollis & Brenes-Madrigal, 1959); Río Balsas: Iguana iguana (Bravo-Hollis & Brenes-Madrigal, 1959). MORELOS: Cuautla: Ctenosaura acanthura (Bravo-Hollis & Brenes-Madrigal, 1959); Huajintlán: Ctenosaura pectinata (Cid del Prado, 1971). NAYARIT: Presa Aguamilpa: Ctenosaura pectinata (Moravec et al., 1996). OAXACA: Huajuapan de León: Ctenosaura acanthura (Caballero, 1938c). PUEBLA: Izúcar de Matamoros: Ctenosaura acanthura (Bravo-Hollis & Brenes-Madrigal, 1959); Tonahuixtla: Ctenosaura acanthura (Caballero, 1938c). Specimens deposited: CNHE (2400-2402, 2406, 2412, 2449, 2450, 2598, 2645)(H, P). Notes: This species had been transferred to the genera Macracis (Dossé, 1939), and Pseudalaeuris (Skrjabin et al., 1951), and was considered a synonym of Ozolaimus monhystera (Bravo-Hollis & Brenes- Madrigal, 1959); however, Baker (1987) and Moravec et al. (1996) considered O. ctenosauri as a valid species. Specimens from Huajintlán were determined as Ozolaimus monhystera (Cid del Prado, 1971), but re- determined as O. ctenosauri by Moravec et al., (1996).

Ozolaimus megatyphlon (Rudolphi) Squamata (A): Intestinal caecum, intestine. GUERRERO: Acapulco: Iguana iguana (Caballero, 1938c). MORELOS: ND: Ctenosara pectinata (Cid del Prado, 1971). Specimens deposited: CNHE (2125, 2388).

Ozolaimus prolixa (Caballero & Zerecero) Squamata (A): Intestine. MORELOS: Alpuyeca: Undetermined iguana (Caballero & Zerecero, 1943). Specimens deposited: CNHE (2009, 2010)(H, P). Notes: This species was described as Macracis prolixa by Caballero and Zerecero (1943), synonymyzed with Ozolaimus monhystera by Bravo-Hollis and Brenes-Madrigal (1959) and transferred to Ozolaimus by Inglis et al., (1960). Baker (1987) considered O. prolixa as a valid species; more recently, Moravec et al. (1996) synonymyzed O. prolixa with O. ctenosauri.

Ozolaimus sp. Squamata (A): Intestine. NA: NA: Ctenosaura pectinata (Bouamer & Morand, 2003).

Parapharyngodon alvarengai Teixeira de Freitas Squamata (A): Intestino. NAYARIT: Presa Aguamilpa: Anolis nebulosus, Phyllodactylus lanei, Sceloporus nelsoni (Moravec et al., 1997). Specimens deposited: CNHE (3647); IPASCR (N-649). Notes: Some authors consider Parapharyngodon a synonym of Thelandros (Petter & Quentin, 1976).

Parapharyngodon californiensis (Read & Amrein) Squamata (A): Intestine. DURANGO: 16 km NNW from Pedriceña: Xantusia bolsonae (Goldberg et al., 1993a). Specimens deposited: USNPC (82172).

Parapharyngodon grismeri Bursey & Goldberg Squamata (A): Intestine.

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BAJA CALIFORNIA SUR: 12 Km S de San Antonio: Petrosaurus thalassinus (Bursey & Goldberg, 2007); San José de Comondú: Petrosaurus repens (Bursey & Goldberg, 2007). Specimens deposited: USNPC (97279-80)(H, P).

Parapharyngodon iguanae (Telford) Squamata (A): Intestine. BAJA CALIFORNIA: Isla Ángel de la Guarda, Isla Mejía, Isla San Esteban: Sceloporus orcutti orcutti (Telford, 1965c). Notes: Specimens were described as Thelandros iguanae (Telford, 1965c), and transferred to Parapharyngodon (Adamson, 1981). Holotype lost (?).

Parapharyngodon lamothei Jiménez-Ruiz, León-Règagnon & Pérez-Ramos Squamata (A): Intestine. GUERRERO: 1 Km N. de Atzcala, 2.5 Km N. de Atzcala, Hueyatl: Bipes canaliculatus (Jiménez-Ruiz et al., 2008). Specimens deposited: CNHE (5909-13)(H, P); HWML (48582-84)(P).

Parapharyngodon maestro Jiménez-Ruiz, León-Règagnon & Pérez-Ramos Squamata (A): Intestine. GUERRERO: Río Tecpan, San Luis de la Loma (Tecpan): Bipes tridactylus (Jiménez-Ruiz et al., 2008). Specimens deposited: CNHE (5904-08)(H,P); HWML (48580-81)(P).

Pharyngodon cnemidophori Read & Amrein Squamata (A): Snout vent. BAJA CALIFORNIA: Camalu: Cnemidophorus labialis (USNPC). Specimens deposited: USNPC (66472).

Pharyngodon sp. Squamata (A): Intestine. DISTRITO FEDERAL: Monte Alegre (Ajusco): Sceloporus microlepidotus, Sceloporus mucronatus (Pacheco-Coronel, 2006). Specimens deposited: CNHE (4897-98).

Pharyngodon yucatanensis Chitwood Squamata (A): Rectum. YUCATÁN: Cueva Góngora (Oxkutzcab), Cueva Ziz (Oxkutzcab): Coleonyx elegans (Chitwood, 1938). Specimens deposited: CNHE (1956)(P); USNPC (42477)(H).

Skrjabinodon scelopori (Caballero) Squamata (A): Intestine. DISTRITO FEDERAL: NA: Sceloporus sp. (CNHE), Sceloporus torquatus (Caballero, 1938d). ESTADO DE MÉXICO: Capulhuac: Sceloporus grammicus (Cid del Prado, 1971). HIDALGO: Mixquiahuala: Sceloporus torquatus (Caballero, 1938d). NAYARIT: Presa Aguamilpa: Phyllodactylus lanei (Moravec et al., 1997). Specimens deposited: CNHE (1634, 2229, 2456, 2644)(H, P), USNPC (9202).

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Notes: Species described as Parathelandros scelopori (Caballero, 1938d); transferred to Pharyngodon (Skrjabin et al., 1951), and finally to Skrjabinodon (Inglis, 1968).

Spauligodon garciaprietoi Jiménez-Ruiz, León-Règagnon & Campbell Squamata (A): Intestine. OAXACA: Mitla: Aspidoscelis mexicanus (Jiménez-Ruiz et al., 2003); NW de Totolapan: Aspidoscelis deppii (Jiménez-Ruiz et al., 2003). Specimens deposited: CNHE (4563-66)(H, P), HWML (16984) )(P), USNPC (87666)(P).

Spauligodon giganticus (Read & Amrein) Squamata (A): Intestine. AGUASCALIENTES, COAHUILA, CHIHUAHUA, DURANGO, ESTADO DE MÉXICO, GUANAJUATO, HIDALGO: NA: Sceloporus jarrovi (Goldberg et al., 1996). BAJA CALIFORNIA SUR: 12 Km S de San Antonio: Petosaurus thalassinus (Bursey & Goldberg, 2007); San José de Comondú: Petrosaurus repens (Bursey & Goldberg, 2007). HIDALGO: Durango: Lepidophyma gaigeae (Goldberg et al., 2002a). MORELOS, NUEVO LEÓN: NA: Sceloporus jarrovi (Goldberg et al., 1996). NA: NA: Sceloporus grammicus (Goldberg et al., 2003b). PUEBLA: NA: Sceloporus mucronatus (Goldberg et al., 2003b). QUERÉTARO, SAN LUIS POTOSÍ, SONORA, TAMAULIPAS, VERACRUZ, ZACATECAS: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85046, 91756, 97282, 97287).

Spauligodon lamothei Monks, Escorcia & Pulido Squamata (A): Intestine. HIDALGO: Barranca de Metztitlán: Sceloporus minor, Sceloporus grammicus (Monks et al., 2008). Specimens deposited: CNHE (5292-95)(H, P).

Spauligodon oxkutzcabiensis (Chitwood) Squamata (A): Intestine, rectum. NA: NA: Sceloporus grammicus, Sceloporus mucronatus (Goldberg et al., 2003b). OAXACA: NA: Sceloporus formosus (Goldberg et al., 2003b). PUEBLA: NA: Sceloporus megalepidurus (Goldberg et al., 2003b). QUERÉTARO: NA: Sceloporus torquatus (Goldberg et al., 2003b). VERACRUZ: Estación de Biología Los Tuxtlas: Lepidophyma tuxtlae (Bursey et al., 1998). YUCATÁN: Camino a San Roque, Cueva Puz (Oxkutzcab): Thecadactylus rapicaudus (Chitwood, 1938). Specimens deposited: CNHE (1951-52)(H, P), USNPC (42475-76). Material of both collections is recorded as holotype and paratype. Notes: This species was described as member of the genus Pharyngodon (Chitwood, 1938), and re- assigned to Spauligodon (Skrjabin et al., 1961).

Spauligodon xenosauri Bursey, Goldberg & Telford Squamata (A): Intestine. TAMAULIPAS: 22.3 Km SW Río San Marcos: Xenosaurus platyceps (Bursey et al., 2007). Specimens deposited: USNPC (98046-49)(H, P).

Tachygonetria macrolaimus tetrapapillata (Caballero) Testudines (A): Colon.

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COAHUILA: NA: Gopherus sp. (Petter & Douglass, 1976). DISTRITO FEDERAL: Azcapotzalco: Gopherus sp. (Caballero, 1944c). NUEVO LEÓN: Marin, Monterrey: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus sp. (Petter & Douglass, 1976). Specimens deposited: CNHE (2230-31)(H, P), MHNP. Notes: Species described as Tachygonetria tetrapapillata (Caballero, 1944c) and later considered a subspecies of Tachygonetria macrolaimus (Petter & Douglass, 1976).

Tachygonetria neartica (Petter & Douglass) Testudines (A): Colon. NUEVO LEÓN: Marin, San Nicolás de los Garza: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus sp. (Petter & Douglass, 1976). Specimens deposited: MHNP(H). Notes: Species originally described as a subspecies of Tachygonetria dentata (Petter & Douglass, 1976) and raised to level of species (Adamson & Nasher, 1984).

Thaparia macrocephalus Petter & Douglass Testudines (A): Colon. COAHUILA: NA: Gopherus sp. (Petter & Douglass, 1976). NUEVO LEÓN: Marin, San Nicolás de los Garza, Villaldama: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus sp. (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Thaparia microcephalus Petter & Douglass Testudines (A): Colon. COAHUILA: NA: Gopherus sp. (Petter & Douglass, 1976). NUEVO LEÓN: Marin, Monterrey: Gopherus berlandieri (Peña-Rivera, 1989). SONORA: NA: Gopherus sp. (Petter & Douglass, 1976). Specimens deposited: MHNP(H).

Thelandros sp. Squamata (A): Intestine. CHIAPAS: Motozintla: Undetermined lizard (Caballero, 1951). Specimens deposited: CNHE (2186).

Physalopteridae (Railliet) Abbreviata ranae (Walton) Amphibia (A): Intestine. NA: NA: Lithobates montezumae (Caballero-Deloya, 1960). Specimens deposited: CNHE (2187). Notes: This species was designated as species inquirenda because its original description was based on larval stages (Baker, 1987).

Abbreviata terrapenis Hill Squamata (A): Stomach. TAMAULIPAS: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85038).

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Physaloptera obtussima Molin Squamata (A): Stomach. VERACRUZ: Cosamaloapan: Ctenosaura pectinata (Caballero-Deloya, 1960). Specimens deposited: CNHE (2154).

Physaloptera retusa Rudolphi Squamata (A): Stomach. AGUASCALIENTES, CHIHUAHUA, COAHUILA, DURANGO, GUANAJUATO, MORELOS, NUEVO LEÓN, QUERÉTARO, SAN LUIS POTOSÍ, SINALOA, SONORA, TAMAULIPAS: NA: Sceloporus jarrovi (Goldberg et al., 1996). BAJA CALIFORNIA SUR: La Laguna: Elgaria paucicarinata (Goldberg & Bursey, 2004d). CHIAPAS: Motozintla: Ameiva undulata, Sceloporus acanthinus (Caballero, 1951). HIDALGO: NA: Sceloporus jarrovi (Goldberg et al., 1996), Sceloporus parvus (Goldberg et al., 2003b); Zacualtipan: Barisia imbricata (Goldberg et al., 1999). NA: NA: Sceloporus grammicus, Sceloporus variabilis (Goldberg et al., 2003b). OAXACA: NA: Sceloporus formosus (Goldberg et al., 2003b). PUEBLA: NA: Sceloporus mucronatus (Goldberg et al., 2003b). VERACRUZ: NA: Sceloporus jarrovi (Goldberg et al., 1996); San Antonio Ixtatetla (Huayacocotla): Gerrhonotus ophiurus (Goldberg et al., 1999). ZACATECAS: NA: Sceloporus torquatus (Goldberg et al., 2003b). Specimens deposited: CNHE (2174-75, 3385), USNPC (85042, 87247, 93509).

Skrjabinoptera phrynosoma (Ortlepp) Squamata (A): Intestine, stomach. CHIHUAHUA: 10 Km del Laboratorio del Desierto, Reserva de la Biósfera Mapimí: Aspidoscelis tigris, Uta stansburiana (Goldberg et al., 1998b), Uma paraphygas (Goldberg et al., 1998c). COAHUILA: 8 Km al Sur de Emiliano Zapata: Uma exsul (Goldberg et al., 1998c). GUANAJUATO: NA: Sceloporus jarrovi (Goldberg et al., 1996). HIDALGO: Actopan: Phrynosoma cornutum, Phrynosoma solare, Sceloporus spinosus (Caballero, 1937). PUEBLA: Cacaloapan: Phrynosoma braconnieri (Goldberg & Bursey, 1991); Caltepec: Phrynosoma taurus (Goldberg & Bursey, 1991 ). QUERÉTARO: NA: Sceloporus jarrovi (Goldberg et al., 1996). SONORA: NA: Phrynosoma ditmarsi (Roth, 1971), Phrynosoma hernandezi (Walton, 1927), Phrynosoma mcallii (Goldberg et al., 1993b). Specimens deposited: CNHE (2052-55, 2100, 3203, 3267-68), PENN (5082) USNPC (81218-20, 82645, 85045).

Physaloptera sp. Amphibia (L): Stomach. BAJA CALIFORNIA SUR: San Ignacio: Pseudacris regilla (Goldberg et al., 2001). GUERRERO: San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). JALISCO: Emiliano Zapata: Rhinella marina (Galicia-Guerrero et al., 2000). OAXACA: Presa Cerro de Oro (Espinoza- Jiménez et al., 2007). SINALOA: NA: Lithobates forreri, Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: NA: Anaxyrus kelloggi, Ollotis mazatlanensis, Pachymedusa dacnicolor, Smilisca baudini (Goldberg & Bursey, 2002); Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). VERACRUZ: Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna El Zacatal: Dendropsophus microcephalus (Goldberg et al., 2002b). Specimens deposited: CNHE (4472, 5417), USNPC (3774, 88598, 89189, 89797, 89803, 89818, 89828, 89833, 90736). Squamata (L): Intestine, stomach.

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BAJA CALIFORNIA SUR: 12 Km S de San Antonio: Petrosaurus thalassinus (Bursey & Goldberg, 2007); San José de Comondú: Petrosaurus repens (Bursey & Goldberg, 2007). NA: NA: Phrynosoma sp. (USNPC). SONORA: Cananea: Phrynosoma ditmarsi (Goldberg & Bursey, 2000b). Specimens deposited: USNPC (2006, 89268).

Skrjabinoptera scelopori Caballero-Rodríguez Squamata (A): Intestine, stomach. DISTRITO FEDERAL: San Andrés Totoltepec: Sceloporus grammicus (CNHE); San Angel: Sceloporus grammicus (CNHE), Sceloporus torquatus (Caballero-Rodríguez, 1971b). Specimens deposited: CNHE (2245, 2246, 2583, 2584)(H).

Skrjabinoptera sp. Squamata (A): Intestine. DISTRITO FEDERAL: San Angel: Sceloporus torquatus (Cid del Prado, 1971). Specimens deposited: CNHE (2468).

Thubunaea ctenosauri Moravec, Salgado-Maldonado & Mayén-Peña Squamata (A): Intestine, stomach. CHIHUAHUA: 10 Km del Laboratorio del Desierto, Reserva de la Biósfera Mapimí: Aspidoscelis tigris, Uta stanburiana (Goldberg et al., 1998b). NAYARIT: Presa Aguamilpa: Ctenosaura pectinata (Moravec et al., 1997). Specimens deposited: CNHE (2643, 3269-70)(H, P), USNPC (87783, 87785).

Thubunaea iguanae Telford Squamata (A): Intestine, stomach. BAJA CALIFORNIA: Isla San Esteban: Aspidoscelis hyperythra (Telford, 1965b). BAJA CALIFORNIA SUR: Isla Cerralvo: Sceloporus grandaevus (Goldberg et al., 2002c); La Paz: Urosaurus nigricaudus (Goldberg et al., 2003a). COAHUILA: NA: NA (Telford, 1965b). ZACATECAS: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (82158, 85048, 92116, 92434).

Thubunaea intestinalis Bursey & Goldberg Squamata (A): Intestine. CHIHUAHUA: NA: Sceloporus jarrovi (Goldberg et al., 1996). DISTRITO FEDERAL: NA: Sceloporus grammicus (Goldberg et al., 2003b). DURANGO: NA: Sceloporus jarrovi (Goldberg et al., 1996). HIDALGO: NA: Sceloporus parvus (Goldberg et al., 2003b). MORELOS: NA: Sceloporus jarrovi (Goldberg et al., 1996). NUEVO LEÓN: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85049).

Quimperiidae (Gendre) Subulascaris falcaustriformis Teixeira de Freitas & Dobbin Amphibia (A): Intestine. SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). VERACRUZ: Laguna Escondida: Leptodactylus melanonotus (Goldberg et al., 2002b), Lithobates vaillanti (Paredes-Calderón et al., 2004). Specimens deposited: CNHE (4082, 4116), USNPC (89191, 89827).

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Rhabdiasidae Railliet Entomelas campbelli Martínez-Salazar & León-Règagnon Squamata (A): Lungs. GUERRERO: Puerto del Gallo, Carretera Nueva Dehli-La Guitarra: Mesaspis gadovi (Martínez-Salazar & León-Règagnon, 2005). PUEBLA: Estación de Microondas, desviación a Sierra Negra, carretera Coyomeapan-Couitlán: Barisia imbricata (Martínez-Salazar & León-Règagnon, 2005). Specimens deposited: CNHE (5240-44)(H, P).

Entomelas floresvillelai Martínez-Salazar & León-Règagnon Squamata (A): Lungs. ESTADO DE MÉXICO: San José El Toto: Barisia herrerae (Martínez-Salazar & León-Règagnon, 2005). OAXACA: Cerro San Felipe: Barisia imbricata; Sierra Mixe, 8.6 km W Totontepec: Mesaspis viridiflava (Martínez-Salazar & León-Règagnon, 2005). Specimens deposited: CNHE (5240-45)(H, P).

Entomelas sp. Squamata (A): Lungs. ESTADO DE MÉXICO: Ocuilán: Barisia herrerae (Zaldívar-Riverón & Nieto Montes de Oca, 2002).

Rhabdias americanus Baker Amphibia (A): Lungs. OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). SONORA: NA: Anaxyrus kelloggi, Ollotis mazatlanensis, Smilisca baudini (Goldberg & Bursey, 2002). Specimens deposited: CNHE (5407-08), USNPC (89796, 89802, 89832).

Rhabdias elegans Gutiérrez Amphibia (A): Lungs. VERACRUZ: Laguna Escondida: Leptodactylus melanonotus (Goldberg et al., 2002b). Notes: In accordance with Martínez-Salazar and León-Règagnon (2007) it is possible that Rhabdia elegans is not present in Mexico and specimens from L. melanonotus correspond to a different species.

Rhabdias füelleborni Travassos Amphibia (A): Lungs. JALISCO: Emiliano Zapata: Rhinella marina, Ollotis marmorea (Galicia-Guerrero et al., 2000). NUEVO LEÓN: La Laguna (Higueras): Rhinella marina, Lithobates berlandieri (León-Règagnon et al., 2005b); La Presita Villarreal (El Carmen), Río Pesquería (Zuazua): Rhinella marina (León-Règagnon et al., 2005b). OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). QUERÉTARO: Neblinas: Ollotis nebulifer (Galicia-Guerrero et al., 2000). VERACRUZ: Estación de Biología Los Tuxtlas: Smilisca cyanosticta (Goldberg et al., 2002b); Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna Escondida: Lithobates vaillanti (Goldberg et al., 2002b). Specimens deposited: CNHE (3771, 3776, 4639-42, 5405-06). Notes: The record of Ollotis nebulifer from Querétaro was published as Bufo valliceps.

Rhabdias fuscovenosa (Railliet) Squamata (A): Lungs.

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CAMPECHE: Carretera Xpujil-Bel-ka: Tropidodipsas sartorii (Martínez-Salazar & León-Règagnon, 2006). ESTADO DE MÉXICO: Ciénaga de Lerma: Thamnophis eques (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002). GUERRERO: Carretera 200, Guerrero-Oaxaca: Leptodeira cussiliris (Martínez- Salazar & León-Règagnon, 2006). JALISCO: Lago de Chapala: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Río Magdalena, Río Verde (Santiago): Thamnophis melanogaster (Martínez-Salazar & León-Règagnon, 2006). MICHOACÁN: Lago de Cuitzeo, Lago de Pátzcuaro: Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Lago de Zacapu: Thamnophis eques, Thamnophis melanogaster (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002); Playa Azul: Leptodeira maculata (Martínez-Salazar & León-Règagnon, 2006); San Juanico: Thamnophis melanogaster (Martínez-Salazar & León-Règagnon, 2006). OAXACA: Cerro San Felipe: Leptodeira septentrionalis (Martínez-Salazar & León-Règagnon, 2006). PUEBLA: Cuetzalan de Progreso: Tropidodipsas sartorii (Martínez-Salazar & León-Règagnon, 2006); Sierra Negra: Thamnophis godmani (Martínez-Salazar & León-Règagnon, 2006). QUERÉTARO: Carretera 120, entre El Lobo-La Vuelta: Storeira sp. (Martínez-Salazar & León-Règagnon, 2006). VERACRUZ: La Victoria (Lago de Catemaco): Leptodeira cussiliris (Martínez-Salazar & León-Règagnon, 2006). YUCATÁN: Carretera Río Lagartos-San Felipe: Thamnophis proximus (Martínez-Salazar & León-Règagnon, 2006); Carretera Valladolid-México 180D: Tropidodipsas sartorii (Martínez-Salazar & León-Règagnon, 2006). Specimens deposited: CNHE (3631-32, 5386-98) , HWML (15224).

Rhabdias kuzmini Martínez-Salazar & León-Règagnon Amphibia (A): Lungs. GUERRERO: Sierra Madre del Sur, Puerto del Bálsamo (Carretera San Antonio-Ciudad Altamirano), Carretera Vallecitos-El Durazno, Carretera Vallecitos-Zihuaquio: Ollotis occidentalis (Martínez-Salazar & León-Règagnon, 2007). Specimens deposited: CNHE (5807-5809)(H, P), CNHE (5810-5811), USNPC (99550).

Rhabdias lamothei Martínez-Salazar & León-Règagnon Squamata (A): Lungs. COLIMA: Río Armería: Leptodeira maculata. (Martínez-Salazar & León-Règagnon, 2006). JALISCO: Carretera Melaque-Autlán, Carretera Puerto Vallarta-Las Palmas: Leptodeira maculata (Martínez- Salazar & León-Règagnon, 2006). MICHOACÁN: Carretera 120, entre Tepalcatepec-Apatzingan: Leptodeira maculata (Martínez-Salazar & León-Règagnon, 2006); Carretera 120, entre Tepalcatepec- Coalcoman: Leptodeira maculata (Martínez-Salazar & León-Règagnon, 2006). NAYARIT: Carretera Tepic- Aguamilpa: Leptodeira maculata (Martínez-Salazar & León-Règagnon, 2006). Specimens deposited: CNHE (5375-84)(H, P).

Rhabdias leonae Martínez-Salazar Squamata (A): Lungs. GUERRERO: Carretera San Luis Acatlán-Tlapa de Comonford (Sierra de Malinaltepec): Anolis megapholidotus (Martínez-Salazar, 2006). Specimens deposited: CNHE (5444-50)(H, P).

Rhabdias manantlanensis Martínez-Salazar Amphibia (A): Lungs. JALISCO: Puerto los Mazos (Sierra de Manantlán): Craugastor occidentalis (Martínez-Salazar, 2008). Specimens deposited: CNHE (5804-06)(H, P).

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Rhabdias ranae Walton Amphibia (A): Lungs. BAJA CALIFORNIA: Cataviña, Isla Cedros: Pseudacris regilla (Goldberg et al., 2001). BAJA CALIFORNIA SUR: La Ballena, La Junta, Miraflores: Pseudacris regilla (Goldberg et al., 2001). SINALOA: NA: Lithobates magnaocularis (Goldberg & Bursey, 2002). SONORA: NA: Leptodactylus melanonotus (Goldberg & Bursey, 2002); Yecora: Lithobates tarahumarae (Bursey & Goldberg, 2001). Specimens deposited: USNPC (88586, 89190, 89813, 89826).

Rhabdias savagei Goldberg & Bursey Amphibia (A): Lungs. NUEVO LEÓN: La Laguna (Higueras): Lithobates berlandieri (León-Règagnon et al., 2005b). Specimens deposited: CNHE (5034).

Rhabdias sp. Amphibia (A): Lungs. VERACRUZ: Laguna Escondida: Rhinella marina (Galicia-Guerrero et al., 2000); Estación de Biología Los Tuxtlas: Rhinella marina, Lithobates berlandieri, Lithobates vaillanti, Smilisca baudini (Guillén-Hernández, 1992); Laguna El Zacatal: Ollotis valliceps (Guillén-Hernández, 1992). Squamata (A): Lungs. BAJA CALIFORNIA SUR: La Laguna: Elgaria paucicarinata (Goldberg & Bursey, 2004d). Specimens deposited: USNPC (93510).

Rhabdias sphaerocephala Goodey Amphibia (A): Lungs. CHIAPAS: Río Huixtla: Rhinella marina (Caballero, 1949b). GUERRERO: Carretera Acapulco- Aeropuerto, San Pedro Las Playas (Laguna de Tres Palos): Lithobates cf. forreri (Cabrera-Guzmán et al., 2007). NUEVO LEÓN: Laguna Montford: Lithobates sp. (Martínez-Villarreal, 1969); Presa Rodrígo Gómez: Rhinella marina, Lithobates sp. (Martínez-Villarreal, 1969); Río Pesquería: Rhinella marina (Martínez- Villarreal, 1969). VERACRUZ: Lago de Catemaco: Rhinella marina (Caballero-Deloya, 1974); Laguna Escondida: Lithobates vaillanti (Paredes-Calderón et al., 2004); Potrero Viejo: Smilisca baudini (CNHE); Puerto de Veracruz: Rhinella marina (Bravo-Hollis & Caballero, 1940). Specimens deposited: CNHE (1986, 2057, 2227, 2593, 4095, 4457, 4458). Notes: According to Baker (1987), geographic distribution of this species is Palaearctic, and for this reason, records from the Americas need confirmation. Currently, all forms previously known in Mexico, Central and South America as R. sphaerocephala were included in Rhabdias pseudosphaerocephala (Kuzmin et al., 2007).

Rhabdias tobagoensis Moravec & Kaiser Amphibia (A): Lungs. VERACRUZ: Laguna El Zacatal: Dendropsophus microcephalus (Goldberg et al., 2002b).

Rhabdochonidae (Travassos, Artigas & Pereira) Rhabdochona sp. Amphibia (A): Intestine. ESTADO DE MÉXICO: San Pedro Tlaltizapán: Ambystoma lermaensis (Mata-López et al., 2002). Specimens deposited: CNHE (3809). Notes: The record of this nematode is considered accidental; species of this genus commonly infect fishes.

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Spirocercidae (Chitwood & Wehr) Ascarops sp. Amphibia (L): Intestine, stomach. VERACRUZ: Estación de Biología los Tuxtlas: Smilisca cianosticta (Goldberg et al., 2002b); Laguna Escondida: Leptodactylus melanonotus (Goldberg et al., 2002b). Specimens deposited: USNPC (97284). Squamata (L): Stomach. BAJA CALIFORNIA SUR: San José de Comondú: Petrosaurus repens (Bursey & Goldberg, 2007). PUEBLA: NA: Sceloporus mucronatus (Goldberg et al., 2003b). QUERÉTARO: NA: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (85039).

Physocephalus sexalatus (Molin) Amphibia (L): Intestine, mesentery, stomach, urinary bladder. OAXACA: Presa Cerro de Oro, Presa de Temascal: Rhinella marina (Espinoza-Jiménez et al., 2007). Specimens deposited: CNHE (5418-22).

Physocephalus sp. Amphibia (L): Body cavity, intestine, mesentery, stomach. JALISCO: Emiliano Zapata: Ollotis marmorea (Galicia-Guerrero et al., 2000). SONORA: NA: Ollotis mazatlanensis (Goldberg & Bursey, 2002). VERACRUZ: Estación de Biología Los Tuxtlas: Smilisca cyanosticta (Goldberg et al., 2002b); Lago de Catemaco: Rhinella marina (Goldberg et al., 2002b); Laguna Escondida: Lithobates vaillanti (Goldberg et al., 2002b). Specimens deposited: CNHE (3773), USNPC (89804). Squamata (L): Stomach. PUEBLA: NA: Sceloporus variabilis (Goldberg et al., 2003b). QUERÉTARO: NA: Sceloporus torquatus (Goldberg et al., 2003b). TAMAULIPAS: La Joya de Salas: Sceloporus jarrovi (Goldberg et al., 1996). Specimens deposited: USNPC (84544, 85043).

Spiruridae Oerley Spiruridae gen. sp. Squamata (L): Body Cavity. NAYARIT: Presa Aguamilpa: Phyllodactylus lanei (Mayén-Peña & Salgado-Maldonado, 1998).

Strongyloididae Chitwood & McIntosh Strongyloides sp. Amphibia (A): Intestine. VERACRUZ: Laguna El Zacatal: Dendropsophus microcephalus (Goldberg et al., 2002b).

Trichuridae (Ransom) Capillaria xochimilcensis Caballero & Zerecero Squamata (A): Intestine. DISTRITO FEDERAL: Lago de Xochimilco: Thamnophis marcianus (Caballero & Zerecero, 1943). Specimens deposited: CNHE (2144-45)(H, P). Notes: This species was considered as synonym of Paracapillaria (Ophidiocapillaria) sonsinoi (Moravec, 1986); however, Biserkov et al. (1994) re-established it as a valid species within Paracapillaria genus.

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Capillariinae gen. sp. Squamata (A): Intestine. ESTADO DE MEXICO: Ciénaga de Lerma: Thamnophis eques (Pérez-Ponce de León et al., 2001; Jiménez-Ruiz et al., 2002).

Paratrichosoma recurvum (Solger) Crocodylia (A): Abdominal skin. YUCATÁN: Ría Celestún Special Biosphere Reserve: Crocodylus moreleti (Moravec & Vargas-Vázquez, 1998b). Specimens deposited: CNHE (3187); IPASRC (N-699). Notes: Originally included in Capillariidae by Moravec & Vargas-Vázquez (1998b).

Annelida Lamarck Hirudinea Lamarck Diestecostomatidae Ringuelet Diestecostoma mexicanum (Baird) Amphibia (A): NA. DISTRITO FEDERAL: Desierto de los Leones: Bolitoglossa sp., Ambystoma altamirani (Caballero, 1940c). ESTADO DE MÉXICO: Tenancingo: Undetermined amphibian (Caballero, 1941d; Ringuelet, 1944). PUEBLA: Volcán de Orizaba: Ambystoma altamirani (Caballero, 1940c). Specimens deposited: CNHE (1718–1719, 1721). Notes: The specimens described by Caballero (1940c) as Hygrobdella pelaezi were synonymized with Diestecostoma mexicanum by Moore (1946). Caballero (1940c) found the leeches co-existing with salamanders and based on this finding, established salamanders as definitive hosts for this parasite.

Glossiphoniidae Vaillant Haementeria lopezi Oceguera-Figueroa Amphibia (A): Body surface. JALISCO: Las Palmas: Rhinella marina, Smilisca baudini (Oceguera-Figueroa, 2006). Specimens deposited: CNHE (5343-46, 5356)(H, P).

Placobdella moorei Autrum Testudines (A): Body surface. MICHOACÁN: Lago de Pátzcuaro: Kinosternon hirtipes (López-Jiménez, 1985; CNHE); Lago de Zacapu: Kinostenon hirtipes (CNHE). TAMAULIPAS: 49.6 km N González (Hacienda Acuña): Kinosternon herrerai (Carr & Mast, 1988). Specimens deposited: CNHE (1646, 1683, 3232). Notes: Specimens from Lago de Pátzcuaro were identified as Placobdella mexicana (Moore), but following Sawyer (1986) this species is a synonym of Placobdella moorei.

Placobdella parasitica Say Testudines (A): Body surface. NUEVO LEÓN: Presa Rodrigo Gómez, Río Sabinas: Apalone spinifera (Palomo de la Rocha, 1989).

Placobdella sp. Testudines (A): Body surface.

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CHIAPAS: Presa Malpaso: Dermatemys mawii; Laguna Bélgica: Kinosternon hirtipes, Kinosternon leucostomum (López-Jiménez, 1985). GUERRERO: Cacahuamilpa: Kinosternon integrum (Caballero, 1941d). TAMAULIPAS: Arroyo La Coma (Rancho Nuevo): Kinosternon herrerai (Carr & Mast, 1988). Specimens deposited: CNHE (1645, 1681, 1691, 1716). Notes: Specimens from Chiapas were named as Placobdella ringueleti by López-Jiménez (1985); however, this species was not formally described. Specimens from Guerrero identified as Placobdella rugosa [synonym of Placobdella ornata in accordance with Soos (1969b)], were re-identified as P. ringueleti (López-Jiménez, 1985).

Ozobranchidae Pinto Ozobranchus branchiatus (Menzies) Testudines (A): Body surface, fins, skin. BAJA CALIFORNIA SUR: San José del Cabo: Lepidochelys olivacea (Ayala-Díaz & González- Contreras, 2006). MICHOACÁN: Calabazas: Lepidochelys olivacea (Oceguera-Figueroa, 2005). OAXACA: Playa La Escobilla: Lepidochelys olivacea (Gámez-Vivaldo et al., 2006). Specimens deposited: CNHE (5116, 5431).

Ozobranchus sp. Testudines (A): Body surface. JALISCO: Playa La Gloria, Playón de Mismaloya: Lepidochelys olivacea (Hernández-Vázquez & Valadéz-González, 1998).

Hirudinidae Pinto Limnobdella olivacea (Caballero) Amphibia (A): Skin. NUEVO LEÓN: Arroyo San Roque, Río La Silla: Lithobates sp. (Palomo de la Rocha, 1989). Notes: Species described as Pintobdella olivacea (Caballero, 1933b), but transferred to genus Limnobdella (Soos, 1969a). According to Sawyer (1986) this species can not be distinguished from L. mexicana.

Arthropoda Latreille Acari Leach Ixodida Leach Argasidae Koch Argasidae gen. sp. Squamata (L): Body surface. OAXACA: Asunción Ixtaltepec, Nizanda: Ctenosaura pectinata (Paredes-León, 2003). Specimens deposited: CNAC.

Carios talaje (Guérin-Méneville) New records: Squamata (L): Body surface. OAXACA: carr. 200 (Pinotepa-Puerto Escondido), km 109, Rancho Lu, 30 km W Puerto Escondido: Phyllodactylus tuberculosus magnus (CNAC004413–004414); Santiago Quiotepec (N Cuicatlán): Phyllodactylus bordai; San Juan Lachao, Río Sal, carr. 131 (Oaxaca-Puerto Escondido) km 178.5: Phyllodactylus lanei (CNAC004412). Specimens deposited: CNAC.

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Ornithodoros turicata (Dugès) Testudines (NA): Body surface. DURANGO: Mapimí: Gopherus flavimarginatus (Morafka et al., 1981).

Ixodidae Koch Amblyomma cajennense (Fabricius) Squamata (A): Body surface. TABASCO: Tenosique: iguana (Hoffmann, 1962). Testudines (A): Body surface. YUCATAN: Kaua: turtle (Wharton, 1938).

Amblyomma dissimile Koch Amphibia (A): Body surface. NA: NA: toads (Chavarría, 1941). OAXACA: Istmo de Tehuantepec: Rhinella marina (Macias Valadez, 1923); Soyaltepec, Tuxtepec: toad (Hoffmann, 1962). VERACRUZ: Cotaxtla: toad (Hoffmann, 1962). YUCATAN: Mérida: Rhinella marina (Pearse, 1936); Mukuyche Cenote (sic.)= Mucuyche Cenote: Rhinella marina (Pearse, 1936). NA: NA (Koch, 1844); NA: reptiles (Chavarría, 1941) Squamata (A): Body surface. CHIAPAS: Tapachula: iguana (Hoffmann, 1962). GUERRERO: Acapulco: Iguana iguana (Hoffmann, 1962); NA: Iguana iguana (Hoffmann, 1962); NA: Iguana iguana (Robinson, 1926); NA: Frontera: snake (Robinson, 1926); NA: Crotalus durissus, Spilotes pullatus (Quintero et al. 1990); NA: Ctenosaura pectinata (Burriedge & Simmons, 2003) (USDA). OAXACA: Istmo de Tehuantepec: iguanas (Macias Valadez, 1923); Tuxtepec: Iguana iguana (Keirans, 1985). VERACRUZ: Río Colorado, Puerto Xochiapa: Iguana iguana (Hoffmann, 1962); NA: Iguana iguana (Hoffmann, 1962). Testudines (A): Body surface. OAXACA: NA: Rhinoclemmys rubida (RML); 2mi NW Tehuantepec: Rhinoclemmys rubida (RML); Oscuranos: Rhinoclemmys pulcherrima (Ernst & Ernst, 1977); San Mateo del Mar: Rhinoclemmys rubida (Ernst & Ernst, 1977); Tehuantepec (Santo Domingo Tehuantepec): Rhinoclemmys rubida (Ernst & Ernst, 1977). YUCATAN: Chichén Itzá: Rhinoclemmys areolata, Kinosternon leucostomum, Terrapene carolina mexicana (Pearse, 1936); Kaua: turtle (Wharton, 1938). Specimens deposited: N (568, 1726), USDA (190743), RML (66172, 66173, 66174, 66177, 66178). Notes: Keirans (1982) pointed out that specimens cited by Robinson (1926) from Frontera probably correspond to Frontera, Tabasco. The numbers 66174 and 66178 are included into the range of accession numbers (RML) published by Ernest & Ernest (1977); however, the localities were not refered by these authors. Details of the localities presented here are based on the re-examination of these specimens deposited in the USNTC. New records: Amphibia (L, N, A): Body surface. CHIAPAS: Presa Ocuilapa: Rhinella marina (CNAC002199). JALISCO: Barra de Navidad: toad (CNAC002051). MICHOACAN: NA: Bufo sp. (CNAC002315). OAXACA: Tehuantepec: Rhinella marina (CNAC002190); Tuxtepec: Rhinella marina (CNAC005051, CNAC005073); Tuxtepec: toad (CNAC005135). VERACRUZ: Catemaco: Bufo sp. (CNAC002045), Rhinella marina (CNAC002092, CNAC002317, CNAC005208); Ciudad Alemán, Cosamaloapan: Rhinella marina (CNAC005105); Laguna Encantada: Rhinella marina (CNAC002283). Notes: Regarding status of hosts referred to as Bufo sp. see note on Amblyomma dissimile. Squamata (L, N, A): Body surface.

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CAMPECHE: Ciudad del Carmen, Playa Bahama: snake (CNAC002274). GUERRERO: Acapulco: iguana (CNAC005092); Laguna de Tres Palos: Iguana iguana (CNAC002047). NAYARIT: 12.5 mi E San Blas: Boa constrictor (CNAC002378); 14 mi E Sn. Blas: Boa constrictor (CNAC002388); Islas Marías: Boa constrictor (CNAC002198); Islas Marías (María Magdalena): Ctenosaura pectinata (CNAC002039); Tecuala: iguana (CNAC002050); Santiago Ixcuintla: Ctenosaura pectinata (CNAC005248); Compostela, Zacualpan: Ctenosaura pectinata (CNAC005247); OAXACA: San Jerónimo: Phrynosoma sp. (CNAC005116); Santa María Tonameca, Barra del Potrero: Ctenosaura pectinata (CNAC005246); San Pedro Mixtepec, Las Negras: Ctenosaura pectinata (CNAC005251); TAMAULIPAS: El Barco: snake (CNAC005087). VERACRUZ: Saladero: “Mazacuata” (CNAC002308); San Juan Evangelista: Iguana iguana (CNAC002285); Veracruz: iguana (CNAC005144). Testudines (L, N, A): Body surface YUCATÁN: Panasa (sic.) Panaba: turtle (CNAC002073); San Nicolás, Tizimín: turtle (CNAC002074). Specimens deposited: CNAC.

Amblyomma elaphense (Price) Squamata (L): Body surface. CHIHUAHUA: Carretera 16 desde Villa Aldama hasta El Pastor: Bogertophis subocularis (Degenhardt, 1986).

Amblyomma rotundatum Koch Amphibia (A): Body surface. MICHOACÁN: Apatzingán: Rhinella marina (Hoffmann, 1962) Squamata (N, A): Body surface. CHIAPAS: El Mercadito, Cintalapa: Spilotes pullatus (Hoffmann, 1962). MICHOACÁN: Apatzingán: Phrynosoma sp. (Hoffmann, 1962). NA: Ctenosaura acanthura (USNPC); NA: Ctenosaura similis (USNPC). Testudines (N, A): Body surface. YUCATÁN: NA: Rhinoclemmys areolata (Ernst & Ernst, 1977). Specimens deposited: RML (19240, 24336, 28215, 66180), USNPC (031516.00, 031518.00). New records: Amphibia (N, A): Body surface GUADALAJARA: toad (CNAC002195); Río Cuale (Puerto Vallarta): Bufo sp. (CNAC005181). Specimens deposited: CNAC.

Amblyomma sabanerae Stoll Testudines (N, A): Body surface. CAMPECHE: NA: Rhinoclemmys areolata (Ernst & Ernst, 1977). CHIAPAS: Aquacaste: Rhinoclemmys pulcherrima (Ernst & Ernst, 1977); Soconusco: Rhinoclemmys pulcherrima (Ernst & Ernst, 1977). Notes: Two toad genera occur in Río Cuale (Puerto Vallarta), both originally included in Bufo (Frost et al., 2006). The genus Bufo is not considered present in Mexico, but due to the lack of specific host determination, we could not assign it to any of the two genera recorded for this locality. NA (A): Body surface. NAYARIT: NA: Rhinoclemmys sp. (Hoffmann, 1962); 15 mi N Tepic: Rhinoclemmys pulcherrima (Ernst & Ernst, 1977). NA: NA: reptile (Keirans & Durden, 2001) (RML). QUINTANA ROO: NA: Rhinoclemmys areolata (RML); NW Chetumal: Rhinoclemmys areolata (Ernst & Ernst, 1977); Cozumel: Rhinoclemmys areolata (Hoffmann, 1962) (Ernst & Ernst, 1977) (RML). YUCATAN: Chichén Itzá: Terrapene carolina yucatana (Hoffmann, 1962).

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Specimens deposited: RML (30059, 33572, 33597, 120370, 66189, 66201, 66204, 66210, 66213, 66225, 66226) The numbers 66226 and 66201 are included in the range of accession numbers (RML) published by Ernest & Ernest (1977); however, the localities were not refered by these authors. Details of the localities presented here are based on the re-examination of these specimens deposited in the USNTC. Notes: The host species from Nayarit recorded by Hoffmann (1962) was misidentified as Geoemyda sp. New records: Testudines (N, A): Body surface. OAXACA: Lagunas de Chacahua: Rhinoclemmys pulcherrima (CNAC005267). SINALOA: 7.5 mi E Concordia carretera 40: Rhinoclemmys pulcherrima (CNAC002381). Specimens deposited: CNAC.

Amblyomma scutatum Neumann Squamata (L, N, A): Body surface. MORELOS: Tehuixtla: iguana (Hoffmann, 1962). GUERRERO: Argelia: iguana (Hoffmann, 1962); NA: Ctenosaura acanthura (Hoffmann, 1962); Taxco: iguana (Hoffmann, 1962); Puente de Ixtla: Ctenosaura pectinata (Hoffmann, 1962); OAXACA: Tehuantepec (Las Majadas): iguana (Hoffmann, 1962). Asunción Ixtaltepec, Nizanda: Ctenosaura pectinata (Paredes-León, 2003) (CNAC006015-006039; 006044). VERACRUZ: Veracruz: iguana (Hoffmann, 1962); Cotaxtla: iguana (Hoffmann, 1962). Specimens deposited: CNAC. Note: Specimens from Tehuixtla and Tehuantepec described as A. boneti and A. castanedai respectively are considered synonyms of A. scutatum (Camicas et al., 1998). New records: Squamata (A): Body surface. ESTADO DE MÉXICO: Tejupilco: iguana (CNAC005050). GUERRERO: Acapulco: iguana (CNAC005134); Arcelia: iguana (CNAC005106); Ichcateopan: iguana (CNAC005061); NA: iguana (CNAC005114); José Azueta, Colonia Aeropuerto: Ctenosaura pectinata (CNAC005250). JALISCO: Barra de Navidad: Ctenosaura pectinata (CNAC005252). MICHOACÁN: Lázaro Cardenas, Caleta de Campos: Ctenosaura pectinata (CNAC005253). MORELOS: Cacahuamilpa: iguana (CNAC005039). OAXACA: Cuicatlán: iguana (CNAC005098). TAMAULIPAS: Camino La Ventana: iguana (CNAC005113). VERACRUZ: Veracruz: Iguana iguana (CNAC005068). Specimens deposited: CNAC.

Mesostigmata Canestrini Ixodorhynchidae Ewing Ixodorhynchus leptodeirae Fain Squamata (A): Body surface. NA: NA: Leptodeira maculata (Fain, 1962). Specimens deposited: IRSNB (H,P), BM(NH) (P) , OSAL (P), USNMC (P).

Ixodorhynchus liponyssoides Ewing NA (A): Body surface. CHIHUAHUA: 4.8 km N Chuhuichupa: NA (Fain & Yunker, 1972). Note: All the known species into Ixodorhynchidae are ectoparasites on snakes.

Ixobioides sp. Squamata (NA): Body surface.

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DISTRITO FEDERAL: herpetarium: Crotalus triseriatus (Quintero et al., 1990a). Notes: According with Quintero et al. (1990a) these specimens represent a new species, which was named as Ixobioides mexicanensis (Quintero et al., 1990b). However, the description of this species was not published.

Macronyssidae Oudemans Ophionyssus natricis Gervais Squamata (L, N, A): Body surface. DISTRITO FEDERAL: herpetarium: Crotalus triseriatus, Crotalus durissus (Quintero et al., 1990a; 1990c); herpetarium: Pituophis deppei deppei (Quintero et al., 1990c). NA: NA: Boa constrictor (Hoffmann & López-Campos, 2000). NUEVO LEÓN: herpetarium: Boa constrictor, Gerrhonotus liocephalus, Crotalus cerastes cercobombus, Crotalus lepidus lepidus, Lampropeltis triangulum, Barisia imbricata, Barisia ciliaris (Rodríguez & Lazcano, 1992). PUEBLA: herpetarium: Corytophanes cristatus, Barisia imbricata, Boa constrictor, Laemanctus serratus, Gerrhonotus liocephalus, Crotalus atrox, Crotalus ravus, Lampropeltis triangulum (Aguirre-Medina, 2005). Testudines (L, N, A): Body surface PUEBLA: herpetarium: Staurotipus triporcatus, Trachemys scripta elegans, Trachemys venusta (Aguirre- Medina, 2005). Specimens deposited: CNAC.

Prostigmata Kramer Pterygosomatidae Oudemans Geckobia bataviensis Vitzthum New records: Squamata (L, A): Body surface. CAMPECHE: Playa Bonita: Hemidactylus frenatus (CNAC004482). GUERRERO: Acapulco, 300 m NE Barra Vieja: Hemidactylus frenatus (CNAC004466–004469; 004709); Acapulco: Hemidactylus frenatus (CNAC005555–005559); Petacalco: Hemidactylus frenatus (CNAC004692–004699); Tixtla: Hemidactylus frenatus (CNAC004700–004701). TABASCO: Villahermosa: Hemidactylus frenatus (CNAC004485). TAMAULIPAS: Ciudad Madero, Refinería Francisco I. Madero: Hemidactylus turcicus (CNAC004475– 004481; 004714–004716); Ejido San Pedrito: Hemidactylus frenatus (CNAC004711). JALISCO: Tomatlán: Hemidactylus frenatus (CNAC004470; 004710). OAXACA: Putla de Guerrero: Hemidactylus frenatus (CNAC004471; 004712); San Pedro Tututepec, La Luz: Hemidactylus frenatus (CNAC004472–004474; 004713); Asunción Ixtaltepec, Nizanda: Hemidactylus frenatus (CNAC004483); Asunción Ixtaltepec, en el pueblo: Hemidactylus frenatus (CNAC004484); Juchitán: Hemidactylus frenatus (CNAC004690–004691); Bajos de Coyula: Hemidactylus frenatus (CNAC004703–004705); Barra de la Cruz: Hemidactylus frenatus (CNAC004706). VERACRUZ: Tierra Blanca: Hemidactylus frenatus (CNAC004702). YUCATÁN: 1.4 km S, 7.5 km W Chixchulub Puerto: Hemidactylus frenatus (CNAC004707); 6 km N, 0.3 km E Celestún: Hemidactylus frenatus: (CNAC004708). Specimens deposited: CNAC. Note: The specimens from Acapulco, Guerrero probably correspond in part to the record cited as Pterygosomatidae by Hoffmann and López-Campos (2000) from Guerrero.

Geckobia keegani Lawrence New records: Squamata (L, N, A): Body surface.

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CAMPECHE: Escárcega: Hemidactylus frenatus (CNAC004507; 004879); Playa Bonita: Hemidactylus frenatus (CNAC004530–004531; 004887; 004962–004963). CHIAPAS: Ocosingo: Hemidactylus frenatus (CNAC004799); Cintalapa: Hemidactylus frenatus (CNAC004499–004500; 004506; 004866; 004899); Ocozocoautla: Hemidactylus frenatus (CNAC004501–004502; 004867); Huixtla: Hemidactylus frenatus (CNAC004902; 004928–004930); 4 km NW Tuxtla Gutiérrez: Hemidactylus frenatus (CNAC004953); Tapachula: Hemidactylus frenatus (CNAC004792–004796; 004864); Frontera Corozal, en el pueblo: Hemidactylus frenatus (CNAC004590–004592). COLIMA: Manzanillo: Hemidactylus frenatus (CNAC004505; 004869). GUERRERO: NA: Hemidactylus frenatus (CNAC004513–004514); Tecpan de Galeana: Hemidactylus frenatus (CNAC004782); Acapulco: Hemidactylus frenatus (CNAC004783–004784; 004787; 004789–004790; 004805; 004853–004855; 004858–004862; 004893–004895; 004924–004926; 005550–005553); Acapulco, Icacos: Hemidactylus frenatus (CNAC004875–004876); San Marcos, San Marcos: Hemidactylus frenatus (CNAC004800; 004877–004878); Tlacoachistlahuaca, Ometepec: Hemidactylus frenatus (CNAC004801); Acapulco, Isla La Roqueta: Hemidactylus frenatus (CNAC004806– 004812; 004882–004883); Ixtapa: Hemidactylus frenatus (CNAC004852); Acapulco, 300 m NE de Barra Vieja, Acapulco: Hemidactylus frenatus (CNAC004490–004494; 004890–004892); Tierra Colorada: Hemidactylus frenatus (CNAC004900); Petacalco: Hemidactylus frenatus (CNAC004911–004916; 004936– 004937); Tixtla: Hemidactylus frenatus (CNAC004918; 004938–004939); Playa Larga, 5.3 km N, 9.6 km W Zihuatanejo: Hemidactylus frenatus (CNAC004940); Iguala: Hemidactylus frenatus (CNAC004946); Acapulco, Barra Vieja: Hemidactylus frenatus (CNAC004486–004489; 004785–004786; 004819–004827; 004856–004857); Petatlán: Hemidactylus frenatus (CNAC004802). HIDALGO: Huejutla: Hemidactylus frenatus (CNAC004495–004498); Pisaflores: Hemidactylus frenatus (CNAC004836). JALISCO: Tomatlán: Hemidactylus frenatus (CNAC004503–004504; 004896); Playa Santa Rosa, 7 km N, 6.9 km W Emiliano Zapata: Hemidactylus frenatus (CNAC004917). MICHOACÁN: Lázaro Cárdenas, Caleta de Campos: Hemidactylus frenatus (CNAC004515; 004884); Aquila, El Farito, 8 km NW de Caleta de Campos: Hemidactylus frenatus (CNAC004516); Lázaro Cárdenas, Nexpa: Hemidactylus frenatus (CNAC004960– 004961). NA: NA: Hemidactylus frenatus (CNAC004888). OAXACA: Tehuantepec: Hemidactylus frenatus (CNAC004868); Matías Romero: Hemidactylus frenatus (CNAC004508–4512; 004517–004518; 004880– 004881; 004885; 004901); Putla Villa de Guerrero, Putla de Guerrero, en el pueblo: Hemidactylus frenatus (CNAC004519–004528; 004886; 004909); San Pedro Tututepec, La Luz: Hemidactylus frenatus (CNAC004529; 004910); Juchitán: Hemidactylus frenatus (CNAC004903–004908; 004931–004935); Bajos de Coyula: Hemidactylus frenatus (CNAC004920; 004923; 004941–004944); 1.5 km SW Bajos de Coyula: Hemidactylus frenatus (CNAC004947); 2 km N Bajos de Coyula: Hemidactylus frenatus (CNAC004948– 004949; 004951–004952); Barra de la Cruz: Hemidactylus frenatus (CNAC004950); Santa María Chimalapa: Hemidactylus frenatus (CNAC004828–004829); San Pedro Tapanatepec: Hemidactylus frenatus (CNAC004791); Asunción Ixtaltepec, Nizanda: Hemidactylus frenatus (CNAC004532–004533; 004552– 004559); Chivela: Hemidactylus frenatus (CNAC004560–004564); Asunción Ixtaltepec, en el pueblo: Hemidactylus frenatus (CNAC004565–004569); Zanatepec: Hemidactylus frenatus (CNAC004975–004977); Jalahui: Hemidactylus frenatus (CNAC004798); Puerto Ángel: Hemidactylus frenatus (CNAC004788); San Pedro Pochutla: Hemidactylus frenatus (CNAC004863); Santiago Pinotepa Nacional, Casa de Chapingo, C. R. U. S.: Hemidactylus frenatus (CNAC004797); Santiago Pinotepa Nacional, entre el Frío y Corraleros: Hemidactylus frenatus (CNAC004865); San Pedro Amuzgos: Hemidactylus frenatus (CNAC004830– 004835; 004870–004874); Santiago Pinotepa Nacional, rancho el Frío: Hemidactylus frenatus (CNAC004840–004841); Santiago Pinotepa Nacional: Hemidactylus frenatus (CNAC004842–004843; 004897–004898; 004927); carretera Oaxaca-Pochutla km 222, rancho Comala: Hemidactylus frenatus (CNAC004803); carretera Oaxaca-Pochutla km 178, 3 km al N de Jalatenco, Tierra Blanca (Los Gamitos): Hemidactylus frenatus (CNAC004804); San Blas Atempa: Hemidactylus frenatus (CNAC004844–004850); Ciudad Ixtepec, cerca de Nizanda, Camino al Cerro de Tilo, después de Paso de la Montaña: Hemidactylus

METAZOAN PARASITES OF MEXICAN AMPHIBIANS AND REPTILES Zootaxa 1904 © 2008 Magnolia Press · 75 TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. frenatus (CNAC004817). QUERÉTARO: Jalpan: Hemidactylus frenatus (CNAC004958–004959). QUINTANA ROO: El Corzo, 12.9 km N, 3.5 km W Cancún: Hemidactylus frenatus (CNAC004921– 004922); Chetumal, CIQRO: Hemidactylus frenatus (CNAC004851). TABASCO: NA: Hemidactylus frenatus (CNAC004814); Cárdenas: Hemidactylus frenatus (CNAC004838); Villahermosa, UJAT: Hemidactylus frenatus (CNAC004570–004589; 004964–004971); Centla, carr. 180 (Villahermosa-Frontera), desviación a la Reserva Centla: Hemidactylus frenatus; Reforma 2ª junto a Laguna Pomposu: Hemidactylus frenatus (CNAC004956–004957; 004972–004974); Nacajuca, Base Militar, campo SEN: Hemidactylus frenatus (CNAC004813); Centla, El Espino: Hemidactylus frenatus (CNAC004816). TAMAULIPAS: Ciudad Madero: Hemidactylus frenatus (CNAC004889). VERACRUZ: Tierra Blanca: Hemidactylus frenatus (CNAC004919; 004945); Tonalá: Hemidactylus frenatus (CNAC004815); Santa Ana, Alto Lucero: Hemidactylus frenatus (CNAC004837). YUCATÁN: 6 km N, 0.3 km E Celestún: Hemidactylus frenatus (CNAC004954–004955); Pisté: Hemidactylus frenatus (CNAC004839). Specimens deposited: CNAC. Note: The specimens from Acapulco, Guerrero probably correspond in part to the records cited as Pterygosomatidae by Hoffmann and López-Campos (2000) from Guerrero.

Geckobia leonilae Hoffmann & Morales-Malacara Squamata (A): Body surface. CHIAPAS: Cañon del sumidero: Phyllodactylus tuberculosus magnus. JALISCO: Chamela: Phyllodactylus lanei rupinus (Hoffmann & Morales-Malacara, 1986). Specimens deposited: CNAC (000274–000297) (H, P). Note: In the CNAC there are some specimens deposited (005560–005568) that probably corresponds to additional material from Chiapas referred by Hoffmann & Morales-Malacara (1986). New records: Squamata (L, N, A): Body surface. CHIAPAS: El Chirriadero, 6 km N de Chiapa de Corzo: Phyllodactylus tuberculosus magnus (CNAC004594–004595; 004718); 8.6 km N, 12.6 km W Pijijiapan: Phyllodactylus tuberculosus magnus (CNAC004621–004622; 004747); 9.3 km N, 3 km W Tuxtla Gutiérrez: Phyllodactylus tuberculosus magnus (CNAC004618–004620; 004744–004746); 6.5 km W Arriaga: Phyllodactylus tuberculosus magnus (CNAC004623; 004748). GUERRERO: Acapulco, Isla La Roqueta: Phyllodactylus lanei lanei (CNAC004597–004598); Acahuizotla: Phyllodactylus lanei lanei (CNAC004603; 004725); Isla Ixtapa: Phyllodactylus lanei lanei (CNAC004604; 004726); 4.8 km N, 2.6 km E Petacalco: Phyllodactylus lanei (CNAC004741–004742); 3.5 km N, 7.5 km E Petacalco: Phyllodactylus lanei (CNAC004629–004630); 2 km N, 8.5 km E Petacalco: Phyllodactylus tuberculosus magnus (CNAC004631; 004755–004763); Grutas de Juxtlahuaca: Phyllodactylus tuberculosus magnus (CNAC004764–004765); Acapulco, 2.5 km W Puerto Marqués: Phyllodactylus tuberculosus (CNAC004599; 004721); 4 km NE Colotlipa: Phyllodactylus tuberculosus magnus (CNAC004606–004608; 004732–004737). JALISCO: Chamela, Estación de Biología, UNAM: Phyllodactylus lanei rupinus (CNAC004635–004636; 004731). MICHOACÁN: 1 km SE Chuta: Phyllodactylus lanei (CNAC004611–004614; 004739–004740); 5 km N, 8 km W Tupitina: Phyllodactylus lanei lanei (CNAC004615–004617; 004743). MORELOS: El Limón: Phyllodactylus lanei rupinus (CNAC004634; 004730). NAYARIT: Acaponeta, Piedra Ancha o Canastillas: Phyllodactylus tuberculosus saxatilis (CNAC004596; 004719). OAXACA: Ciudad Ixtepec, parte trasera de la pedrera: Phyllodactylus muralis isthmicus (CNAC004728); Ciudad Ixtepec, 100 m antes de llegar a paso de la Montaña: Phyllodactylus muralis isthmicus (CNAC004605); Bahías de Huatulco: Phyllodactylus tuberculosus magnus (CNAC004600–004602; 004722–004724); 2.5 km S, 1 km E Bajos de Coyula: Phyllodactylus muralis isthmicus (CNAC004632–004633; 004766); Juchitán: Phyllodactylus tuberculosus magnus (CNAC004624– 004626; 004749–004752); 9.6 km N, 9.6 km E, San Pedro Tapanatepec: Phyllodactylus tuberculosus magnus

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(CNAC004627–004628; 004753–004754); San Pedro Huamelula: Phyllodactylus tuberculosus magnus (CNAC004720); 25 km NW Puerto Escondido: Phyllodactylus tuberculosus magnus (CNAC004609–004610; 004738); Tehuantepec: Phyllodactylus muralis isthmicus (CNAC004593; 004717); Ciudad Ixtepec, arroyo del Cerro Naranjo, cerca de “Los Mangos”: Phyllodactylus muralis isthmicus (CNAC004727); Asunción Ixtaltepec, Aguaje sobre el Arroyo, Nizanda: Phyllodactylus muralis isthmicus (CNAC004729). Specimens deposited: CNAC.

Geckobia sp. (undetermined) Squamata (L, N): Body surface GUERRERO: Acapulco: Hemidactylus frenatus (Hoffmann, 1979). NA: NA: Phyllodactylus tuberculosus magnus (Hoffmann, 1979). Specimens deposited: CNAC (005569–005573). Note: The specimens from Acapulco, Guerrero probably correspond in part to the record cited as Pterygosomatidae gen. sp. by Hoffmann and López-Campos (2000). New records: Squamata (L, N, A): Body surface CHIAPAS: cerca de Tuxtla Gutiérrez, Cañón del Sumidero (9 km. dentro del cañón): Phyllodactylus tuberculosus magnus (CNAC004979). GUERRERO: Acahuizotla: Phyllodactylus lanei lanei (CNAC004982); San Antonio: Phyllodactylus tuberculosus magnus; San Marcos, Río El Cortes, aprox. 6 km de San Marcos: Phyllodactylus tuberculosus magnus (CNAC004980). MICHOACÁN: Aquila, El Farito, 8 km NW Caleta de Campos: Phyllodactylus lanei lanei (CNAC004983–004985)). OAXACA: 2 km W Pinotepa Nacional: Phyllodactylus tuberculosus magnus (CNAC004981); NA: Phyllodactylus muralis isthmicus; carr. Tehuantepec-Oaxaca: Phyllodactylus tuberculosus magnus (CNAC004978). Specimens deposited: CNAC.

Geckobiella texana Banks Squamata (L, N, A): Body surface. CHIHUAHUA: “Meadow Valley”: Sceloporus ornatus (Jack, 1959); Barranca del Río Guachochic, Sceloporus sp. (Hoffmann, 1969). COLIMA: Colima: Sceloporus pyrocephalus; Manzanillo: Sceloporus pyrocephalus (Jack, 1959). DISTRITO FEDERAL: Tapotlan (sic): Sceloporus torquatus; Xarhimilco (sic) cerca de la Ciudad de México: Sceloporus torquatus (Jack, 1959). NA: Sceloporus sp. (Hoffmann, 1969; Hoffmann & López-Campos, 2000); Reserva Ecológica del Pedregal de San Ángel: Sceloporus t. torquatus (Montiel-Parra et al., 2007). DURANGO: Ciudad de Durango: Sceloporus poinsetti (Jack, 1959). ESTADO DE MÉXICO: Calacoaya: Sceloporus sp.; San Juan Teotihuacan: Sceloporus sp. (Hoffmann, 1969). NA: Sceloporus torquatus (Hoffmann & López-Campos, 2000). GUERRERO: Chilpancingo: Sceloporus horridus (Jack, 1959). JALISCO: la Cumba les Arrastrados (sic): Sceloporus horridus (Jack, 1959). MICHOACÁN: La Orilla: Sceloporus horridus (Jack, 1959); Zirahuén: Sceloporus torquatus (Hoffmann, 1969). MORELOS: NA: Sceloporus sp. (Hoffmann & López-Campos, 2000); Coatetelco: Iguana iguana. (Hoffmann, 1969); 1 km N Tlalnepantla: Sceloporus grammicus (Gadsden, 1987; 1988). NAYARIT: Tepic: Sceloporus utiformis (Jack, 1959). OAXACA: Ciudad Tehuantepec: Sceloporus siniferus; Salina Cruz: Sceloporus siniferus; Tehuantepec: Sceloporus spinosus (Jack, 1959). PUEBLA: NA: Sceloporus spinosus (Jack, 1959). TLAXCALA: Tlaxcala: Phrynosoma sp. (Hoffmann, 1969). VERACRUZ: Agua fina: Sceloporus variabilis (Jack, 1959). Catemaco, Camino a mono blanco: lizard (Hoffmann, 1969); NA: Sceloporus sp. (Hoffmann & López-Campos, 2000). Specimens deposited: CNAC. Note: Jack (1959) cited two unknown localities in Distrito Federal: Tapotlan and Xarhimilco, although the second probably should be Xochimilco (Lago de Xochimilco).

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New records: Squamata (N, A): Body surface DISTRITO FEDERAL: Valle La Cantimplora, Ajusco: Sceloporus grammicus. YUCATÁN: 4.61 km N, 2.9 km E Calotmul: Coleonyx elegans (CNAC004415). Specimens deposited: CNAC.

Hirstiella bakeri Cunliffe Squamata (L, N, A): Body surface. PUEBLA: Izúcar de Matamoros: Sceloporus sp. (Hoffmann, 1969). OAXACA: Asunción Ixtaltepec, Nizanda: Ctenosaura pectinata (Paredes-León, 2003). Specimens deposited: CNAC.

Hirstiella otophila Hunter & Loomis Squamata (L, N, A): Body surface. BAJA CALIFORNIA: 60 mi N San Felipe: Coleonyx variegatus; 5 mi N San Felipe: Coleonyx variegatus. SONORA: 30–40 mi SE San Luis Río Colorado: Coleonyx variegatus; 48–51 mi NW Sonoyta: Coleonyx variegatus; 1–9 mi E Kino: Coleonyx variegatus. SINALOA: 11 mi S Guamuchil: Coleonyx fasciatus (Hunter & Loomis, 1966). New record: Squamata (A): Body surface. COAHUILA: San Pedro de las Colonias, Santa Eulalia: Coleonyx brevis (CNAC004416–004417). Specimens deposited: CNAC.

Hirstiella pelaezi Cunliffe Squamata (L, N, A): Body surface. DISTRITO FEDERAL: NA: Sceloporus torquatus torquatus (Cunliffe, 1949); SE, limitando con los estados de México y Morelos, 8 km SW del km 31 carr. Xochimilco-Oaxtepec: Sceloporus palaciosi (Gadsden, 1987; 1988); Reserva Ecológica del Pedregal de San Ángel: Sceloporus t. torquatus (Montiel-Parra et al., 2007). NA: Sceloporus microlepidotus (Hoffmann, 1969). HIDALGO: NA: Sceloporus torquatus, Sceloporus microlepidotus; El Chico, Cerro Las Ventanas: Crotaphytus collaris (Hoffmann, 1969). MICHOACÁN: NA: Sceloporus torquatus, Sceloporus microlepidotus. PUEBLA: NA: Sceloporus torquatus, Sceloporus microlepidotus. Specimens deposited: USNMC (1850) (H), CNAC. Note: Hoffmann and López-Campos (2000) indicated that this mite species has been collected on Sceloporus torquatus and Sceloporus microlepidotus from Estado de México, Morelos and Tlaxcala, without specify its particular distribution.

Hirstiella pyriformis Newell & Ryckman Squamata (L, N, A): Body surface. BAJA CALIFORNIA: Isla San Esteban: Sauromalus varius; SE de la Isla Angel de la Guarda: Sauromalus hispidus; Las Arrastras: Sauromalus ater; Isla Granito = Isla Alcatraz (sic): NA (Newell & Ryckman, 1964). Specimens deposited: USNMC, AMNH. Note: Newell and Ryckman (1964) considered Isla Alcatraz synonym of Isla Granito; however, the former is located in Sonora State and the latter in Baja California State (Grismer, 2002).

Hirstiella sp. Squamata (L, N, A): Body surface.

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ESTADO DE MÉXICO: NA: Sceloporus microlepidotus (Hoffmann & López-Campos, 2000). New record: Squamata (L): Body surface. OAXACA: 9.6 km N, 9.6 km W San Pedro Tapanatepec: Phyllodactylus tuberculosus magnus (CNAC005543). Specimens deposited: CNAC.

Hirstiella trombidiformis (Berlese) Squamata (L, N, A): Body surface. GUANAJUATO: NA: NA (Berlese, 1920 in Hirst, 1926); NA: Sceloporus torquatus torquatus (Hoffmann & López-Campos, 2000). NUEVO LEÓN: Gruta del Carrizal: NA (Cunliffe, 1952).

Pterygosomatidae gen. sp. Squamata (L, N, A): Body surface. GUANAJUATO: NA: Sceloporus sp. ESTADO DE MÉXICO: NA: Sceloporus sp. MICHOACÁN: NA: Sceloporus sp. MORELOS: NA: Sceloporus sp.; NA: iguana. OAXACA: NA: Sceloporus sp.; NA: Phyllodactylus tuberculosus magnus. PUEBLA: NA: Sceloporus sp. (Hoffmann & López-Campos, 2000).

Tequisistlana oaxacensis Hoffmann & Sánchez Squamata (L, N, A): Body surface. OAXACA: Tequisistlán: Lepidophyma smithi (Hoffmann & Sánchez, 1980). Specimens deposited: CNAC (000262–000267) (H, P); (005581–005592).

Trombiculidae Ewing Euschoengastoides tumidus Loomis Squamata (L): Body surface. SONORA: a 13 km NW de Cananea: Sceloporus jarrovii (Loomis, 1971). Specimens deposited: CSULB.

Eutrombicula acapulcensis Hoffmann Squamata (L): Body surface. GUERRERO: Acapulco: Aspidoscelis deppii deppii, Sceloporus siniferus (Hoffmann, 1965). Specimens deposited: CNAC (000169–000173) (H, P).

Eutrombicula alfreddugesi (Oudemans) Amphibia (L): Body surface. NA: NA: Lithobates sp. (Hoffmann, 1969). SAN LUIS POTOSÍ: a 15 km S de Tamazunchale, a orillas del Río Moctezuma: Lithobates sp. (Hoffmann, 1990). Notes: The host from San Luis Potosí published as Rana pipiens probably corresponds to Lithobates berlandieri (García-Vázquez com. pers.). Squamata (L): Body surface. AGUASCALIENTES: NA: lizard (Hoffmann, 1990). BAJA CALIFORNIA: Isla de Cedros: Sceloporus zosteromus rufidorsum (Hoffmann, 1949). BAJA CALIFORNIA SUR: San Jose del Cabo: Sceloporus sp. (Hoffmann, 1990). CAMPECHE: 5 km SW de Champotón: Basiliscus vittatus; a 6 km W de Escárcega: Ameiva undulata gaigeae; a 7.5 km W de Escárcega: Ameiva undulata gaigeae, Anolis lemurinus, Leptophis mexicanus mexicanus (Loomis, 1969). CHIAPAS: Cacahuatán (La Rioja): Ameiva undulata undulata; finca “La Esperanza”: “serpiente chichicua” (Hoffmann, 1949); Tapachula, Volcán Tacaná, Finca Milán:

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Sceloporus sp. (Hoffmann, 1990; Hoffmann & López-Campos, 2000); Ocosingo, Frontera Corozal: Anolis lemurinus; Ocosingo, Frontera Corozal, Área Natural Protegida Lacandonia: Anolis lemurinus, Anolis sericeus, Anolis uniformis; Ocosingo, Frontera Corozal, Reserva Comunal Sierra de la Cojolita: Anolis lemurinus, Anolis uniformis; Ocosingo, Frontera Corozal, Sierra El Tornillo: Anolis lemurinus, Anolis sericeus, Anolis uniformis; Ocosingo, Frontera Corozal, Arroyo Nayte: Anolis lemurinus, Anolis uniformis; Ocosingo, Frontera Corozal, Reserva Comunal El Cartón: Anolis lemurinus; Ocosingo, Frontera Corozal, El Encaño: Anolis uniformis (Paredes-León et al., 2006). CHIHUAHUA: Barranca del Río Guachochic: Sceloporus sp. COAHUILA: NA: lizard (Hoffmann, 1990); Viesca: Uta stansburiana stejnegeri, Uma exsul (García-de la Peña et al., 2007). COLIMA: Isla Socorro, de las Islas Revillagigedo: Urosaurus auriculatus (Hoffmann, 1990; Hoffmann & López-Campos, 2000); NA: lizard (Hoffmann, 1990). DISTRITO FEDERAL: Lomas de Chapultepec: Sceloporus torquatus (Hoffmann, 1949). Cerro del Ajusco: Sceloporus torquatus; Pedregal de San Angel: Sceloporus torquatus (Hoffmann, 1990); SE, limitando con los estados de México y Morelos, 8 km SW del km 31 carr. Xochimilco-Oaxtepec: Sceloporus palaciosi (Gadsden, 1987; 1988). DURANGO: NA: Sceloporus jarrovii (Kroman et al., 1969). ESTADO DE MÉXICO: Calacoaya: Sceloporus torquatus; Lagunas de Zempoala, Ojotongo: Sceloporus sp.; Zentlalpan: Sceloporus sp.; Criadero de San Cayetano: Sceloporus sp. (Hoffmann, 1990; Hoffmann & López-Campos, 2000). GUANAJUATO: Picacho del Carmen, San José Iturbide: Sceloporus sp.; Cañada de la Iglesia: Sceloporus sp. (Hoffmann, 1990). GUERRERO: Acapulco: Aspidoscelis deppii deppii, Sceloporus siniferus (Hoffmann, 1949); Xonacatepec, Tlapa: Sceloporus sp.; Mezcala: Phrynosoma orbiculare; Zumpango: Phrynosoma orbiculare; Omiltemi: Sceloporus sp.; Puente de Ixtla: Sceloporus sp. (Hoffmann, 1990; Hoffmann & López-Campos, 2000). HIDALGO: NA: lizard (Hoffmann, 1990). JALISCO: Volcán Nevado de Colima, 14.5 km W Atenquique: Sceloporus bulleri; 21 km W Atenquique: Barisia imbricata (Loomis & Bennett, 1977). MICHOACÁN: Temascaltepec: Ameiva undulata undulata (Jenkins, 1949); Mil Cumbres: lizard; Zirahuén: Sceloporus sp.; Los Azufres, a unos 30 km de Ciudad Hidalgo: Sceloporus sp. (Hoffmann, 1990; Hoffmann & López-Campos, 2000). MORELOS: Lagunas de Zempoala: Sceloporus aeneus aeneus (Hoffmann, 1949); Tlalnepantla, 1 km N Tlalnepantla: Sceloporus grammicus; Tlalnepantla, km 47 Felipe Neri, carr. Xochimilco-Oaxtepec: Sceloporus grammicus (Gadsden, 1987; 1988); km 60 de la carretera México- Cuernavaca: Sceloporus microlepidotus, Sceloporus sp. (Hoffmann, 1990); NA: Sceloporus palaciosi. (Hoffmann & López-Campos, 2000). NA: NA: Anolis sp., Phrynosoma sp., Sceloporus variabilis variabilis, Sceloporus microlepidotus, Urosaurus auriculatus, Ameiva undulata gaigeae, Aspidoscelis guttata immutabilis, Aspidoscelis sp. (Hoffmann, 1969). NAYARIT: Isla María Madre: lizards (Hoffmann, 1949); NA: Drymarchon corais (Kroman et al., 1969). OAXACA: Santa María Chimalapa: Ameiva undulata undulata; Cafetal “Mirador”: Ameiva undulata undulata; Tehuantepec, Santa Lucía: Ameiva undulata undulata (Hoffmann, 1949); Soyactepec, Tuxtepec: Sceloporus variabilis variabilis; Camino a la Cuchara, Soyaltepec: Aspidoscelis sp.; Teotitlán: Aspidoscelis guttata immutabilis; Presa de Temascal: Anolis sp.; Tepenzacoalco: Sceloporus sp.; San Jerónimo: Phrynosoma sp. (Hoffmann, 1990; Hoffmann & López- Campos, 2000). NUEVO LEÓN: Santa Catarina, Casablanca: Sceloporus couchi (García-de la Peña et al., 2004); Parque Ecológico Chipinque: Sceloporus cyanogenys (García-de la Peña et al., 2005a); Parque Ecológico Chipinque: Sceloporus olivaceus (García-de la Peña et al., 2005b). PUEBLA: Xuchil: Sceloporus variabilis (Hoffmann, 1990); NA: Sceloporus variabilis variabilis (Hoffmann & López-Campos, 2000). QUINTANA ROO: a 4 km NNE de Felipe Carrillo Puerto: Ameiva undulata gaigeae; Isla Mujeres: Ameiva undulata gaigeae, Sceloporus chrysostictus; Pueblo Nuevo X-Can: Anolis rodriguezi, Ameiva undulata gaigeae, Basiliscus vittatus, Aspidoscelis angusticeps angusticeps, Sceloporus chrysostictus; a 6.7–8 km W Puerto Juárez: Pseudelaphe phaescens, Spilotes pullatus mexicanus (Loomis, 1969). SAN LUIS POTOSÍ: km 36 de la carretera de San Luis-Río Verde, Sierra de Álvarez: Sceloporus sp.; Tanque de los Caballos, km 32 Carretera San Luis-Tampico: Sceloporus sp. Sierra de San Miguelito: Sceloporus sp. (Hoffmann, 1990; Hoffmann & López-Campos, 2000). SINALOA: NA: lizard (Hoffmann, 1990). SONORA: NA: lizard

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(Hoffmann, 1990). TAMAULIPAS: NA: lizard (Hoffmann, 1990). TLAXCALA: NA: lizard (Hoffmann, 1990). VERACRUZ: Minatitlán: Ameiva undulata undulata (Hoffmann, 1949); Tlilapan, cerca de Orizaba: Basiliscus vittatus; El Salto de Eyipantla: Sceloporus variabilis variabilis; Tecolapa: Sceloporus sp.; km 6 de la carretera Catemaco-Coatzacoalcos (Hueyapan): Sceloporus sp.; Tierra Blanca, camino al Río Amapa: Sceloporus sp.; Corral de los Caminos, a 22 km N de Acayucan: Sceloporus sp.; Cerca de Perote: Phrynosoma sp. (Hoffmann, 1990; Hoffmann & López-Campos, 2000). YUCATÁN: Chichén Itzá: Ameiva undulata undulata (Pearse, 1936); Pisté: Ameiva undulata gaigeae (Loomis, 1969). ZACATECAS: NA: lizard (Hoffmann, 1990). Specimens deposited: CNAC (004260–004354), CSCLB. Note: The record from Chihuahua was first published as Acomatacarus arizonensis in Hoffmann (1969) and later corrected by Hoffmann (1990).The record from the locality of Temascal, Oaxaca was cited by Hoff- mann (1990) as Temascacal (sic).

Eutrombicula bitarsala Loomis & Bennet Squamata (L): Body surface. JALISCO: Volcán Nevado de Colima: Barisia imbricata, Plestiodon brevirostris; Volcán del Fuego: Bari- sia imbricata; A 14.5 km W de Atenquique: Plestiodon brevirostris, Sceloporus bulleri; 21 km W Aten- quique: Barisia imbricata, Sceloporus bulleri, Sceloporus grammicus; 24 km W Atenquique: Sceloporus bulleri; 27 km W Atenquique: Sceloporus grammicus (Loomis & Bennett, 1977). Specimens deposited: CSULB (H, P).

Hexidionis allredi (Brennan & Beck) Squamata (L): Body surface. SONORA: a 13 km SSE de Alamos: Aspidoscelis costata, Urosaurus ornatus, Sceloporus nelsoni (Lucas & Loomis, 1968).

Hexidionis biagii (Hoffmann) Squamata (L): Body surface. HIDALGO: NA: lizard (Lucas & Loomis, 1968; Hoffmann, 1990). MORELOS: Lagunas de Zempoala: Sceloporus aeneus aeneus (Hoffmann, 1965). Specimens deposited: CNAC (000167) (H). Note: The record from Hidalgo was cited as H. lacerticola by Lucas and Loomis (1968) but Hoffmann (1990) mentions it as H. biagii.

Hexidionis lacerticola (Loomis) Squamata (L): Body surface. BAJA CALIFORNIA: Isla de Cedros: Aspidoscelis labialis (Hoffmann, 1965; 1990). Bahía de los Ange- les: lizard (Brennan, 1966). SONORA: 9–11 mi NW Guaymas: Callisaurus draconoides, Uta stansburiana taylori, Urosaurus ornatus, Crotaphytus collaris, Hoolbrookia maculata (Loomis, 1964). Note: The record from Isla de Cedros was cited by Hoffmann (1965) as H. biagii but corrected in Hoff- mann (1990). Specimens deposited: CNAC (000196) (P).

Hyponeocula imitator Tanigoshi & Loomis Squamata (L): Body surface.

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BAJA CALIFORNIA: a 53 km N de San Felipe: Chionactis occipitalis. BAJA CALIFORNIA SUR: a 3 km E de La Burrera: Lampropeltis getula. SONORA: a 4 km W de Carbo: Dipsosaurus dorsalis; a 51 km S de Santa Ana: Coluber flagellum; a 42 km E de San Luis: Dipsosaurus dorsalis (Tanigoshi & Loomis, 1974). Specimens deposited: CSULB.

Hyponeocula sauricola Tanigoshi & Loomis Squamata (L): Body surface. SONORA: 8 km NE de Cananea: Sceloporus jarrovii (Tanigoshi & Loomis, 1974). Specimens deposited: CSULB (H, P).

Microtrombicula intermedia Webb & Loomis Squamata (L): Body surface. SONORA: 36 km N El Oasis: Sceloporus clarki (Webb & Loomis, 1971). Specimens deposited: RML(H, P); CSULB(P).

Microtrombicula phyllodactyli Webb & Loomis Squamata (L): Body surface. SINALOA: Topolobampo: Phyllodactylus homolepidurus. SONORA: 10 km S Hermosillo: Phyllodactylus homolepidurus; 55 km S Hermosillo: Phyllodactylus homolepidurus; Bahía de San Carlos: Phyllodactylus homolepidurus; 13 km SE Alamos: Phyllodactylus tuberculosus; La Aduana: Phyllodactylus tuberculosus (Webb & Loomis, 1970). Specimens deposited: CSCLB (H, P), RML (P). New records: Squamata (L): Body surface. CHIAPAS: 2 km NW Arriaga: Phyllodactylus tuberculosus magnus (CNAC004681; 005547). GUERRERO: 9 km SE Coyuca: Phyllodactylus lanei (CNAC004680); Acapulco, Cumbres de Llano largo: Phyllodactylus l. lanei (CNAC004673–004679; 005548). MICHOACÁN: Aquila, la Punta, a 1.2 km SE Campamento el farito: Phyllodactylus l. lanei (CNAC004682; 005549). NAYARIT: 15 km al N de Acaponeta: Phyllodactylus tuberculosus (CNAC004671–004672; 005544–005546). Specimens deposited: CNAC.

Oaxacarus geophis Goff & Spicer Squamata (L): Body surface. OAXACA: Sierra Mixe, a 300 m W de Totontepec: Geophis anocularis (Goff & Spicer, 1980). Specimens deposited: BMH (H); CSULB, FMNH, IMR, OSAL, USNCC (P).

Parasecia gurneyi (Ewing) New records: Squamata (L): Body surface. CAMPECHE: Calakmul, brecha a Flores Magón, El papagayo-Calakmul: Coleonyx elegans (CNAC004686). GUERRERO: Acapulco, Isla la Roqueta: Phyllodactylus l. lanei (CNAC004683). JALISCO: 17 km NW Mascota: Phyllodactylus lanei (CNAC004684). YUCATÁN: Carretera Sierra Papacal- Chuburná, entre Sierra Papacal y estero Yucalpetén: Coleonyx elegans (CNAC004687–004688); 4.61 km N, 2.9 km E Calotmul: Coleonyx elegans (CNAC004685). Specimens deposited: CNAC.

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Parasecia kansasensis (Loomis) New record: Squamata (L): Body surface. YUCATÁN: Carr. Yaxcabá-Tahdzibichén: Coleonyx elegans (CNAC004689). Specimen deposited: CNAC. Notes: Loomis (1956) recorded this species in the states of Coahuila and Durango without locality or host data.

Trombiculidae gen. sp. Squamata (L): Body surface. BAJA CALIFORNIA SUR: Sierra de La Laguna, Cañón San Dionisio: Sceloporus hunsakeri, Sceloporus licki, Petrosaurus thalassinus (Veiga et al., 2000).

Whartonacarus nativitatis (Hoffmann) Squamata (L): Body surface. BAJA CALIFORNIA SUR: Isla Natividad: Uta concinna (Hoffmann, 1950). Specimens deposited: CNAC (000087–000091) (H, P).

Leeuwenhoekiidae Womersley Acomatacarus arizonensis Ewing Squamata (L): Body surface. BAJA CALIFORNIA: Isla de Cedros: Sceloporus zosteromus (Hoffmann, 1949), Aspidoscelis labialis (Greenberg, 1952); BAJA CALIFORNIA SUR: Bahía de Asunción: Sceloporus sp. (Hoffmann, 1969); along the Peninsula: Sceloporus licki (= Sceloporus orcutti licki), Sceloporus zosteromus, Urosaurus nigricaudus (Loomis & Spath, 1969). GUERRERO: Acapulco: Sceloporus siniferus (Greenberg, 1952). Note: The record from Guerrero was identified by Greenberg (1952) as A. arizonensis although he found some morphological differences.

Hannemania anurae Welbourn & Loomis Amphibia (L): Intradermic. JALISCO: a 8 km W de Ameca: Lithobates berlandieri, Lithobates tarahumarae; A 1.6 km N de Encarnación: Lithobates montezumae. NAYARIT: a 4.2 km E de San Blas: Eleutherodactylus pallidus; a 35.7 km SE de Tepic: Hyla eximia, Lithobates berlandieri. SINALOA: a 1 km NE de Santa Lucía: Eleutherodactylus pallidus; a 6.4 km SE de Santa Lucía: Hyla arenicolor; a 2.2 km NE de Santa Lucía: Lithobates pustulosa, Lithobates berlandieri, Eleutherodactylus pallidus; a 4.6 km W de Santa Lucía: Lithobates berlandieri; a 8.1 km SW de Santa Lucía: Lithobates pustulosa (Welbourn & Loomis, 1970). Specimens deposited: CNAC (000327) (P).

Hannemania bufonis Loomis & Welbourn Amphibia (L): Intradermic. SONORA: 8 mi S de Alamos: Anaxyrus punctatus; en el camino entre La Aduana y Minas Nuevas: Anaxyrus punctatus (Loomis & Welbourn, 1969). NA: Ollotis mazatlanensis (Goldberg et al., 2002d). Specimens deposited: USNCC.

Hannemania hylae (Ewing) Amphibia (L): Intradermic.

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BAJA CALIFORNIA: 5 mi E de Cerro del castillo: Pseudacris cadaverina (Loomis & Welbourn, 1969). MORELOS: Tepozteco: Lithobates berlandieri, Eleutherodactylus sp. (Hoffmann, 1969). SAN LUIS POTOSÍ: Cueva de Potrerillos: Ahuacatlán: frog (Hoffmann, 1952). NA: frogs (Hoffmann, 1969). NA: Lithobates sp. (Hoffmann & López-Campos, 2000). SONORA: 5 mi NW de Cananea: Hyla arenicolor; 11 mi E de Imuris: Hyla arenicolor (Loomis & Welbourn, 1969). Alamos: Scaphiopus couchi (Hoffmann, 1969). NA: Ollotis mazatlanensis (Goldberg et al., 2002d). Specimens deposited: USNMC (956) (H); USNCC. Notes: The record of Eleutherodactylus sp. from Morelos can probably be referred to Eleutherodactylus nitidus (García-Vázquez, com. pers.).

Hannemania mexicana Hoffmann Amphibia (L): Intradermic. SAN LUIS POTOSÍ: Palitla, a 5 km N de Tamazunchale: Lithobates johni, Lithobates berlandieri; Río Valles: Lithobates berlandieri; Río Moctezuma, a 1.5 km S de Tamazunchale: Lithobates berlandieri (Hoffmann, 1965). Specimens deposited: CNAC (000146–000164) (H, P). New record: Amphibia (L): Intradermic. PUEBLA: Cuetzalan de Progreso: Lithobates berlandieri. Specimens deposited: CNAC.

Hannemania monticola Welbourn & Loomis Amphibia (L): Intradermic. DURANGO: a 1.6 km W de Buenos Aires (53 km W de El Salto), sobre la carretera 40: Hyla eximia, Ambystoma rosaceum; a 23.5 km SW de Buenos Aires (75 km W de El Salto): Eleutherodactylus saxatilis ; a 64.6 km W de El Salto: Hyla eximia; a 3.5 km W de la Ciudad: Hyla eximia (Welbourn & Loomis, 1970). SONORA: NA: Lithobates tarahumarae (Goldberg et al., 2002d). Specimens deposited: USNCC.

Hannemania pelaezi Hoffmann Amphibia (L): Intradermic. MORELOS: Acatlipa: Lithobates berlandieri (Hoffmann, 1965). Specimens deposited: CNAC (000165–000168) (H, P).

Hannemania saxicola Welbourn & Loomis Amphibia (L): Intradermic. DURANGO: a 23.5 km SW de Buenos Aires (75 km W de El Salto): Eleutherodactylus saxatilis (Welbourn & Loomis, 1970). Specimens deposited: CNAC (000329) (P).

Odontacarus robbinsi Loomis & Spath Squamata (L): Body surface. BAJA CALIFORNIA SUR: a 3.2 km S de San Antonio: Sceloporus licki, Sceloporus zosteromus, Urosaurus nigricaudus; a 19 km SW de San José del Cabo: Urosaurus nigricaudus; Boca de la Sierra: Urosaurus nigricaudus; Miraflores: Urosaurus nigricaudus (Loomis & Spath, 1969). NAYARIT: NA: lizards. SINALOA: NA: lizards (Goff & Loomis, 1977). Specimens deposited: RML (H, P); CSCLB (P).

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New record: Squamata (L): Body surface. MORELOS: El Limón: Phyllodactylus lanei rupinus (CNAC004670). Specimens deposited: CNAC.

Crustacea Brünnich Maxillopoda Dahl Branchiura Thorell Arguloida Yamaguti Argulidae Leach Argulus ambystoma Poly Amphibia (A): Body surface and gills. MICHOACÁN: Lago de Pátzcuaro: Ambystoma dumerili (Poly, 2003). Specimens deposited: USNM.

Pentastomida Diesing Cephalobaenida Heymons Cephalobaenidae Fain Raillietiella furcocerca (Diesing) Squamata (A): Body cavity (lungs?). NA: NA: Drymarchon corais (Ali et al., 1984). SONORA: Road to Alamos: Trimorphodon tau (Goldberg & Bursey, 2004a). Specimens deposited: USNPC (95060).

Porocephalida Heymons Porocephalidae Fain Kiricephalus coarctatus (Diesing) Squamata (NA): NA. ESTADO DE MEXICO: Tenango del Aire: Pituophis deppei (Peláez & Juliá, 1983). NA: NA: Micrurus fulvius, Coluber constrictor (Sambon, 1922; Heymons, 1935 in Almeida & Christoffersen, 2002). NUEVO LEÓN: NA: Pantherophis guttatus (Peláez & Juliá, 1983).

Porocephalus basiliscus Riley & Self Squamata (A): NA. COLIMA: NA: Crotalus basiliscus (Riley & Self, 1979).

Porocephalus clavatus (Wyman) Squamata (A): NA. NA: ND: Boa constrictor (Riley & Self, 1979).

Porocephalus crotali (Humboldt) Squamata (A): Lungs. CHIAPAS: Ocozocoautla: Bothrops asper, Atropoides numifer mexicanus; La Trinitaria: Atropoides numifer mexicanus. COLIMA: ND: Crotalus basiliscus basiliscus. GUERRERO: Zihuatanejo: Crotalus durissus. NUEVO LEON: Ciénega de Flores, Apodaca: Crotalus atrox. TAMAULIPAS: El Mante: Crotalus durissus. VERACRUZ: San Juan Evangelista, Sontecomapan: Bothrops asper; Tezonapa: Atropoides numifer numifer (Peláez & Juliá, 1983).

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Porocephalus tortugensis Riley & Self Squamata (A): NA BAJA CALIFORNIA SUR: Isla Tortuga: Crotalus tortugensis (Riley & Self, 1979).

Subtriquetridae Fain Subtriquetra subtriquetra Sambon Crocodylia (NA): NA. NA: NA: Caiman crocodilus (Sambon 1922 in Almeida & Christoffersen, 2002)

HOST-PARASITE LIST CLASS AMPHIBIA

Undetermined amphibian Diestecostoma mexicanum—Hirudinea

Order Anura Frogs Hannemania hylae—Acari Green frog Rauschiella tineri—Trematoda Toads Amblyomma dissimile—Acari

BRACHYCEPHALIDAE Craugastor occidentalis Taylor (= Eleutherodactylus occidentalis) Rhabdias manantlanensis—Nematoda Craugastor rhodopis (Cope) (= Eleutherodactylus rhodopis) Gorgoderina attenuata—Trematoda Centrorhynchus sp.—Acanthocephala Porrocaecum sp.—Nematoda Aplectana incerta—Nematoda Cosmocerca podicipinus—Nematoda Strongyluris sp.—Nematoda Oswaldocruzia sp.—Nematoda Eleutherodactylus nitidus (Peters) Riojatrema bravoae—Monogenoidea Eleutherodactylus pallidus (Duellman) Hannemania anurae—Acari Eleutherodactylus saxatilis (Webb) Hannemania monticola—Acari Hannemania saxicola—Acari Eleutherodactylus sp. Hannemania hylae—Acari

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BUFONIDAE “Bufo” sp. Amblyomma dissimile—Acari Anaxyrus compactilis (Wiegmann) (= Bufo compactilis) Cylindrotaenia americana—Cestoidea Anaxyrus kelloggi (Taylor) (= Bufo kellogi) Cylindrotaenia americana—Cestoidea Aplectana itzocanensis—Nematoda Physaloptera sp.—Nematoda Rhabdias americanus—Nematoda Anaxyrus punctatus (Baird & Girard) (= Bufo punctatus) Hannemania bufonis—Acari Ollotis marmorea (Wiegmann) (= Bufo marmoreus) Centrorhynchus sp.—Acanthocephala Aplectana incerta—Nematoda Rhabdias füelleborni—Nematoda Physocephalus sp.—Nematoda Ollotis mazatlanensis (Taylor) (= Bufo mazatlanensis) Nematotaenia dispar—Cestoidea Aplectana incerta—Nematoda Aplectana itzocanensis—Nematoda Oswaldocruzia pipiens—Nematoda Physaloptera sp.—Nematoda Rhabdias americanus—Nematoda Physocephalus sp.—Nematoda Hannemania bufonis—Acari Hannemania hylae—Acari Ollotis nebulifer (Girard) (= Bufo valliceps in part) Megalodiscus americanus—Trematoda Distoichometra bufonis—Cestoidea Aplectana itzocanensis—Nematoda Aplectana sp.—Nematoda Cosmocercoides sp.—Nematoda Rhabdias füelleborni—Nematoda Ollotis occidentalis (Camerano) (= Bufo occidentalis) Rhabdias kuzmini—Nematoda Ollotis valliceps (Wiegmann) (= Bufo valliceps) Haematoloechus medioplexus—Trematoda Centrorhynchus sp.—Acanthocephala Aplectana sp.—Nematoda Cosmocerca sp.—Nematoda Oswaldocruzia sp.—Nematoda

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Ochoterenella sp.—Nematoda Rhabdias sp.—Nematoda Rhinella marina (Linnaeus) (= Bufo marinus) Riojatrema bravoae—Monogenoidea Mesocoelium monas—Trematoda Cephalogonimus americanus—Trematoda Clinostomum attenuatum—Trematoda Gorgoderina festoni—Trematoda Telorchis sp.—Trematoda Gorgoderina megalorchis—Trematoda Haematoloechus medioplexus—Trematoda Langeronia macrocirra—Trematoda Choledocystus hepaticus—Trematoda Rauschiella poncedeleoni—Trematoda Rauschiella tineri—Trematoda Distoichometra bufonis—Cestoidea Nematotaenia dispar—Cestoidea Pseudophyllidea gen. sp.—Cestoidea Centrorhynchus sp.—Acanthocephala Prosthenorchis sp.—Acanthocephala Polymorphus sp.—Acanthocephala Contracaecum sp.—Nematoda Ascaridoidea gen. sp.—Nematoda Aplectana incerta—Nematoda Aplectana itzocanensis—Nematoda Aplectana waltoni—Nematoda Aplectana sp.—Nematoda Cosmocerca sp.—Nematoda Cosmocercoides sp.—Nematoda Raillietnema sp.—Nematoda Cruzia morleyi—Nematoda Oswaldocruzia pipiens—Nematoda Oswaldocruzia sp.—Nematoda Oswaldocruzia subauricularis—Nematoda Icosiella sp.—Nematoda Ochoterenella caballeroi—Nematoda Ochoterenella chiapensis—Nematoda Ochoterenella digiticauda—Nematoda Ochoterenella figueroai—Nematoda Ochoterenella lamothei—Nematoda Ochoterenella nanolarvata—Nematoda Ochoterenella sp.—Nematoda Physaloptera sp.—Nematoda Rhabdias americanus—Nematoda Rhabdias füelleborni—Nematoda Rhabdias sp.—Nematoda Rhabdias sphaerocephala—Nematoda Physocephalus sexalatus—Nematoda Physocephalus sp.—Nematoda

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Haementeria lopezi—Hirudinea Amblyomma dissimile—Acari Amblyomma rotundatum—Acari Amblyomma scutatum—Acari

HYLIDAE Anotheca spinosa (Steindachner) Cosmocercella anothecae—Nematoda Dendropsophus ebraccatus (Cope) (= Hyla ebraccata) Cosmocerca sp.—Nematoda Dendropsophus microcephalus (Cope) (= Hyla microcephala) Clinostomum complanatum—Trematoda Haematoloechus medioplexus—Trematoda Aplectana itzocanensis—Nematoda Physaloptera sp.—Nematoda Rhabdias tobagoensis—Nematoda Strongyloides sp.—Nematoda Ecnomiohyla miotympanum (Cope) (= Hyla miotympanum) Gorgoderina megalorchis—Trematoda Cosmocercoides sp.—Nematoda Hyla arenicolor Cope Hannemania anurae—Acari Hannemania hylae—Acari Hyla eximia Baird Aplectana hamatospicula—Nematoda Hannemania anurae—Acari Hannemania monticola—Acari Hyla plicata Brocchi Cosmocercella haberi—Nematoda Pachymedusa dacnicolor (Cope) Megalodiscus temperatus—Trematoda Oligacanthorhynchidae gen. sp.—Acanthocephala Aplectana itzocanensis—Nematoda Cosmocercella haberi—Nematoda Physaloptera sp.—Nematoda Pseudacris cadaverina (Cope) Hannemania hylae—Acari Pseudacris regilla (Baird & Girard) Clinostomum sp.—Trematoda Alaria sp.—Trematoda Fibricola sp.—Trematoda Gorgoderina sp.—Trematoda Glypthelmins sp.—Trematoda Distoichometra bufonis—Cestoidea Ophidascaris sp.—Nematoda Aplectana itzocanensis—Nematoda Oswaldocruzia pipiens—Nematoda

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Physaloptera sp.—Nematoda Rhabdias ranae—Nematoda Smilisca baudini (Duméril & Bibron) Mesocoelium monas—Trematoda Langeronia macrocirra—Trematoda Polystoma naevius—Monogenoidea Aplectana incerta—Nematoda Aplectana itzocanensis—Nematoda Gnathostoma sp.—Nematoda Oswaldocruzia sp.—Nematoda Oswaldocruzia subauricularis—Nematoda Physaloptera sp.—Nematoda Rhabdias americanus—Nematoda Rhabdias sp.—Nematoda Rhabdias sphaerocephala—Nematoda Haementeria lopezi—Hirudinea Smilisca cyanosticta (Smith) Mesocoelium monas—Trematoda Oncicola luehei—Acanthocephala Polystoma naevius—Monogenoidea Aplectana itzocanensis—Nematoda Cosmocerca podicipinus—Nematoda Oswaldocruzia sp.—Nematoda Rhabdias füelleborni—Nematoda Ascarops sp.—Nematoda Physocephalus sp.—Nematoda

LEPTODACTYLIDAE Leptodactylus fragilis (Brocchi) (= Leptodactylus labialis) Gorgoderina festoni—Trematoda Leptodactylus melanonotus (Hallowell) Megalodiscus temperatus—Trematoda Megalodiscus sp.—Trematoda Gorgoderina attenuata—Trematoda Gorgoderina festoni—Trematoda Haematoloechus longiplexus—Trematoda Glypthelmins facioi—Trematoda Rauschiella poncedeleoni—Trematoda Rauschiella tineri—Trematoda Cylindrotaenia americana—Cestoidea Centrorhynchus sp.—Acanthocephala Porrocaecum sp.—Nematoda Aplectana itzocanensis—Nematoda Cosmocerca podicipinus—Nematoda Spiroxys sp.—Nematoda Oswaldocruzia pipiens—Nematoda Oswaldocruzia sp.—Nematoda Subulascaris falcaustriformis—Nematoda Rhabdias elegans—Nematoda

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Rhabdias ranae—Nematoda Ascarops sp.—Nematoda

MICROHYLIDAE Gastrophryne usta (Cope) Gorgoderina festoni—Trematoda RANIDAE Lithobates berlandieri (Baird) (= Rana berlandieri) Cephalogonimus americanus—Trematoda Megalodiscus americanus—Trematoda Clinostomum sp.—Trematoda Halipegus occidualis—Trematoda Gorgoderina parvicava—Trematoda Haematoloechus complexus—Trematoda Haematoloechus danbrooksi—Trematoda Langeronia macrocirra—Trematoda Glypthelmins californiensis—Trematoda Glypthelmins tuxtlasensis—Trematoda Ophiotaenia filaroides—Cestoidea Centrorhynchus sp.—Acanthocephala Aplectana sp.—Nematoda Cosmocerca sp.—Nematoda Gnathostoma sp.—Nematoda Chabaudgolvania sp.—Nematoda Oswaldocruzia sp.—Nematoda Rhabdias füelleborni—Nematoda Rhabdias savagei—Nematoda Hannemania anurae—Acari Hannemania hylae—Acari Hannemania mexicana—Acari Hannemania pelaezi—Acari Lithobates brownorum (Sanders) (= Rana brownorum) Haematoloechus floedae—Trematoda Loxogenes sp.—Trematoda Glypthelmins brownorumae—Trematoda Lithobates dunni (Zweifel) (= Rana dunni) Cephalogonimus americanus—Trematoda Megalodiscus americanus—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus coloradensis—Trematoda Glypthelmins californiensis—Trematoda Glypthelmins quieta—Trematoda Ochetosoma sp.—Trematoda Ophiotaenia filaroides—Cestoidea Eustrongylides sp.—Nematoda Spiroxys contortus—Nematoda Spiroxys sp.—Nematoda

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Hedruris siredonis—Nematoda Falcaustra mexicana—Nematoda Foleyellides striatus—Nematoda Ochoterenella digiticauda—Nematoda Lithobates forreri (Boulenger) (= Rana forreri) Cephalogonimus americanus—Trematoda Megalodiscus temperatus—Trematoda Clinostomum attenuatum—Trematoda Haematoloechus sp.—Trematoda Cosmocerca podicipinus—Nematoda Foleyellides striatus—Nematoda Physaloptera sp.—Nematoda Lithobates cf. forreri (= Rana cf. forreri) Apharyngostrigea sp.—Trematoda Catadiscus rodriguezi—Trematoda Mesostephanus sp.—Trematoda Diplostomidae gen. sp.—Trematoda Haematoloechus coloradensis—Trematoda Diphyllobothriidae gen. sp.—Cestoidea Cylindrotaenia americana—Cestoidea Neoechinorhynchus golvani—Acanthocephala Oncicola sp.—Acanthocephala Globocephalus sp.—Nematoda Contracaecum sp.—Nematoda Rhabdias sphaerocephala—Nematoda Serpinema trispinosum—Nematoda Aplectana incerta—Nematoda Cosmocerca podicipinus—Nematoda Gnathostoma sp.—Nematoda Oswaldocruzia subauricularis—Nematoda Foleyellides striatus—Nematoda Physaloptera sp.—Nematoda Lithobates johni (Blair) (= Rana johni) Hannemania mexicana—Acari Lithobates magnaocularis (Frost & Bagnara) (= Rana magnaocularis) Haematoloechus complexus—Trematoda Glypthelmins quieta—Trematoda Aplectana itzocanensis—Nematoda Cosmocercoides variabilis—Nematoda Oswaldocruzia pipiens—Nematoda Foleyellides striatus—Nematoda Physaloptera sp.—Nematoda Subulascaris falcaustriformis—Nematoda Rhabdias ranae—Nematoda Lithobates megapoda (Taylor) (= Rana megapoda)

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Megalodiscus americanus—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus complexus—Trematoda Glypthelmins quieta—Trematoda Ochetosoma sp.—Trematoda Contracaecum sp.—Nematoda Eustrongylides sp.—Nematoda Spiroxys sp.—Nematoda Foleyellides striatus—Nematoda Lithobates montezumae (Baird) (= Rana montezumae) Cephalogonimus americanus—Trematoda Cephalogonimus robustus—Trematoda Megalodiscus americanus—Trematoda Megalodiscus temperatus—Trematoda Halipegus occidualis—Trematoda Fibricola sp.—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus coloradensis—Trematoda Haematoloechus complexus—Trematoda Haematoloechus elongatus—Trematoda Haematoloechus illimis—Trematoda Haematoloechus macrorchis—Trematoda Haematoloechus medioplexus—Trematoda Haematoloechus parcivitellarius—Trematoda Haematoloechus pulcher—Trematoda Haematoloechus varioplexus—Trematoda Glypthelmins californiensis—Trematoda Glypthelmins quieta—Trematoda Ochetosoma sp.—Trematoda Metroliasthes mexicana—Cestoidea Ophiotaenia filaroides—Cestoidea Ophiotaenia magna—Cestoidea Gnathostoma sp.—Nematoda Spiroxys corti—Nematoda Spiroxys susanae—Nematoda Falcaustra caballeroi—Nematoda Falcaustra ranae—Nematoda Foleyellides striatus—Nematoda Abbreviata ranae—Nematoda Hannemania anurae—Acari Lithobates neovolcanica (Hillis & Frost) (= Rana neovolcanica) Cephalogonimus americanus—Trematoda Megalodiscus americanus—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus complexus—Trematoda Glypthelmins quieta—Trematoda Ochetosoma sp.—Trematoda Paracamallanus sp.—Nematoda

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Lithobates psilonota (Webb) (= Rana psilonota) Glypthelmins quieta—Trematoda Lithobates pustulosus (Boulenger) (= Rana pustulosa) Hannemania anurae—Acari Lithobates sp. (= Rana sp.) Cephalogonimus americanus—Trematoda Megalodiscus americanus—Trematoda Megalodiscus temperatus—Trematoda Halipegus occidualis—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus complexus—Trematoda Haematoloechus macrorchis—Trematoda Haematoloechus medioplexus—Trematoda Langeronia macrocirra—Trematoda Limatulum sp.—Trematoda Pleurogenoides sp.—Trematoda Glypthelmins californiensis—Trematoda Glypthelmins quieta—Trematoda Distoichometra bufonis—Cestoidea Aplectana sp.—Nematoda Falcaustra ranae—Nematoda Oswaldocruzia pipiens—Nematoda Foleyellides striatus—Nematoda Rhabdias sphaerocephala—Nematoda Gnathostoma sp.—Nematoda Limnobdella olivacea—Hirudinea Hannemania hylae—Acari Eutrombicula alfreddugesi—Acari Lithobates spectabilis (Hillis & Frost) (= Rana spectabilis) Haematoloechus elongatus—Trematoda Glypthelmins quieta—Trematoda Lithobates tarahumarae (Boulenger) (= Rana tarahumarae) Haematoloechus breviplexus—Trematoda Langeronia macrocirra—Trematoda Glypthelmins quieta—Trematoda Ophiotaenia magna—Cestoidea Oligacanthorhynchidae gen. sp.—Acanthocephala Falcaustra inglisi—Nematoda Falcaustra lowei—Nematoda Oswaldocruzia pipiens—Nematoda Foleyellides striatus—Nematoda Physaloptera sp.—Nematoda Subulascaris falcaustriformis—Nematoda Rhabdias ranae—Nematoda Hannemania anurae—Acari

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Hannemania monticola—Acari Lithobates vaillanti (Brocchi) (= Rana vaillanti) Cephalogonimus americanus—Trematoda Halipegus eschi—Trematoda Catadiscus propinquus—Trematoda Catadiscus rodriguezi—Trematoda Gorgoderina attenuata—Trematoda Gorgoderina parvicava—Trematoda Haematoloechus complexus—Trematoda Haematoloechus danbrooksi—Trematoda Haematoloechus floedae—Trematoda Haematoloechus illimis—Trematoda Langeronia macrocirra—Trematoda Glypthelmins facioi—Trematoda Glypthelmins parva—Trematoda Glypthelmins sp.—Trematoda Glypthelmins tuxtlasensis—Trematoda Centrorhynchus sp.—Acanthocephala Oncicola sp.—Acanthocephala Plagiorhynchus sp.—Acanthocephala Contracaecum sp.—Nematoda Ascaridoidea gen. sp.—Nematoda Aplectana incerta—Nematoda Aplectana sp.—Nematoda Cosmocerca parva—Nematoda Cosmocerca sp.—Nematoda Cosmocercoides sp.—Nematoda Spiroxys sp.—Nematoda Oswaldocruzia subauricularis—Nematoda Oswaldocruzia sp.—Nematoda Ochoterenella digiticauda—Nematoda Subulascaris falcaustriformis—Nematoda Rhabdias füelleborni—Nematoda Rhabdias sp.—Nematoda Rhabdias sphaerocephala—Nematoda Physocephalus sp.—Nematoda Lithobates zweifeli (Hillis, Frost & Webb) (= Rana zweifeli) Gorgoderina tarascae– Trematoda Haematoloechus elongatus—Trematoda Gnathostoma turgidum—Nematoda

SCAPHIOPODIDAE Scaphiopus couchi Baird Pseudodiplorchis americanus—Monogenoidea Hannemania hylae—Acari Spea hammondi (Baird) Cylindrotaenia americana—Cestoidea Neodiplorchis scaphiopi—Monogenoidea

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Spea multiplicata (Cope) Aplectana itzocanensis—Nematoda

Order Caudata AMBYSTOMATIDAE Ambystoma sp. Hedruris siredonis—Nematoda Chabaudgolvania elongata—Nematoda Ambystoma altamirani Dugès Cephalogonimus americanus—Trematoda Gorgoderina rhyacosiredonis—Trematoda Chabaudgolvania elongata—Nematoda Falcaustra mexicana—Nematoda Diestecostoma mexicanum—Hirudinea Ambystoma andersoni Krebs & Brandon Cephalogonimus americanus—Trematoda Gorgoderina attenuata—Trematoda Spiroxys sp.—Nematoda Hedruris siredonis—Nematoda Chabaudgolvania elongata—Nematoda Falcaustra mexicana—Nematoda Ambystoma dumerili (Dugès) Bothriocephalus acheilognathi—Cestoidea Cephalogonimus americanus—Trematoda Posthodiplostomum minimum—Trematoda Ochetosoma sp.—Trematoda Proteocephalidae gen. sp.—Cestoidea Polymorphus brevis—Acanthocephala Spiroxys contortus—Nematoda Falcaustra mexicana—Nematoda Argulus ambystoma—Crustacea Ambystoma lermaensis (Taylor) Cephalogonimus americanus—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus complexus—Trematoda Haematoloechus pulcher—Trematoda Ochetosoma sp.—Trematoda Chabaudgolvania elongata—Nematoda Cosmocercoides dukae—Nematoda Falcaustra mexicana—Nematoda Rhabdochona sp.—Nematoda Spiroxys sp.—Nematoda Ambystoma leorae (Taylor) Falcaustra mexicana—Nematoda Ambystoma ordinarium Taylor Hedruris siredonis—Nematoda Ambystoma rivularis (Taylor) Falcaustra mexicana—Nematoda Ambystoma rosaceum Taylor Hannemania monticola—Acari

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Ambystoma taylori Brandon, Maruska & Rumph Hedruris siredonis—Nematoda Chabaudgolvania elongata—Nematoda Ambystoma tigrinum (Green) Megalodiscus temperatus—Trematoda Gorgoderina attenuata—Trematoda Haematoloechus pulcher—Trematoda Ophiotaenia filaroides—Cestoidea Hedruris siredonis—Nematoda Chabaudgolvania elongata—Nematoda Falcaustra mexicana—Nematoda Ambystoma velasci Dugès Chabaudgolvania elongata—Nematoda

PLETHODONTIDAE Bolitoglossa sp. Diestecostoma mexicanum—Hirudinea Chiropterotriton orculus (Cope) Cosmocerca acanthurum—Nematoda Pseudoeurycea leprosa (Cope) Cosmocerca acanthurum—Nematoda Pseudoeurycea mixteca Canseco & Gutiérrez Angiostoma lamotheargumedoi—Nematoda

Order Gymnophiona CAECILIAIDAE Dermophis mexicanus (Duméril & Bibron) Telorchis patonianus—Trematoda Aplectana mexicana—Nematoda

CLASS REPTILIA Undetermined reptile Amblyomma sabanerae – Acari

Order Squamata (amphisbaenians) BIPEDIDAE Bipes canaliculatus Latreille Parapharyngodon lamothei—Nematoda

Bipes tridactylus (Dugès) Parapharyngodon maestro—Nematoda

Order Squamata (lizards) Undetermined lizards Mathevotaenia antrozoi—Cestoidea

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Thelandros sp.—Nematoda Cruzia mexicana—Nematoda Hirstiella trombidiformis—Acari Eutrombicula alfreddugesi—Acari Geckobiella texana - Acari Odontacarus robbinsi—Acari Hexidionis biagii—Acari Hexidionis lacerticola—Acari

ANGUIDAE Barisia ciliaris (Smith) (= Barisia imbricata ciliaris) Ophionyssus natricis—Acari Barisia herrerae Zaldívar-Riverón & Nieto-Montes de Oca Entomelas floresvillelai—Nematoda Entomelas sp.—Nematoda Barisia imbricata (Wiegmann) Cosmocercoides variabilis—Nematoda Raillietnema brachyspiculatum—Nematoda Oswaldocruzia pipiens—Nematoda Physaloptera retusa—Nematoda Entomelas campbelli—Nematoda Entomelas floresvillelai—Nematoda Ophionyssus natricis—Acari Eutrombicula alfreddugesi—Acari Eutrombicula bitarsala—Acari Elgaria paucicarinata (Fitch) Cosmocercoides variabilis– Nematoda Oswaldocruzia sp.—Nematoda Physaloptera retusa—Nematoda Rhabdias sp.—Nematoda Gerrhonotus liocephalus Wiegmann Mesocestoides sp.—Cestoidea Ophionyssus natricis—Acari Gerrhonotus ophiurus Cope Brachycoelium salamandrae—Trematoda Cosmocercoides variabilis—Nematoda Physaloptera retusa—Nematoda Mesaspis gadovi (Boulenger) Entomelas campbelli—Nematoda Mesaspis viridiflava (Bocourt) Entomelas floresvillelai—Nematoda

CORYTOPHANIDAE Basiliscus vittatus Wiegmann Parallopharynx arctus—Trematoda Parahaplometroides basiliscae—Trematoda Cyrtosomum scelopori—Nematoda Eutrombicula alfreddugesi—Acari Corytophanes cristatus (Merrem)

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Ophionyssus natricis—Acari Corytophanes hernandezi (Wiegmann) Piratuba sp.—Nematoda Laemanctus serratus Cope Ophionyssus natricis—Acari

CROTAPHYTIDAE Crotaphytus collaris Say Hirstiella pelaezi—Acari Hexidionis lacerticola—Acari Gambelia wislizeni (Baird & Girard) Cyrtosomum penneri—Nematoda GEKKONIDAE Aristelliger georgeensis (Bocourt) Geckobia sp.—Acari Coleonyx brevis Stejneger Hirstiella otophila—Acari Coleonyx elegans Gray Oochoristica parvula—Cestoidea Pharyngodon yucatanensis – Nematoda Geckobiella texana—Acari Parasecia gurneyi—Acari Parasecia kansasensis—Acari Coleonyx fasciatus (Boulenger) Hirstiella otophila—Acari Coleonyx variegatus Baird Hirstiella otophila—Acari Hemidactylus frenatus Schlegel Geckobia bataviensis—Acari Geckobia keegani—Acari Geckobia sp. —Acari Hemidactylus turcicus (Linnaeus) Geckobia bataviensis—Acari Phyllodactylus bordai Taylor Carios talaje—Acari Phyllodactylus homolepidurus Smith Microtrombicula phyllodactyli—Acari Phyllodactylus lanei Smith Oochoristica sp.—Cestoidea Centrorhynchus sp.—Acanthocephala Parapharyngodon alvarengai—Nematoda Skrjabinodon scelopori—Nematoda Spiruridae gen. sp.—Nematoda Carios talaje—Acari Geckobia leonilae—Acari Microtrombicula phyllodactyli—Acari Parasecia gurneyi—Acari Phyllodactylus lanei lanei Smith Geckobia leonilae—Acari Geckobia sp.—Acari

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Microtrombicula phyllodactyli—Acari Parasecia gurneyi—Acari Phyllodactylus lanei rupinus Dixon Geckobia leonilae—Acari Odontacarus robbinsi—Acari Phyllodactylus muralis isthmicus Dixon Geckobia leonilae—Acari Geckobia sp.—Acari Phyllodactylus tuberculosus Wiegmann Geckobia leonilae—Acari Microtrombicula phyllodactyli—Acari Phyllodactylus tuberculosus magnus Taylor Carios talaje—Acari Geckobia leonilae—Acari Geckobia sp. —Acari Hirstiella sp.—Acari Microtrombicula phyllodactyli—Acari Pterygosomatidae gen. sp.—Acari Phyllodactylus tuberculosus saxatilis Dixon Geckobia leonilae—Acari Thecadactylus rapicaudus (Houttuyn) Spauligodon oxkutzcabiensis—Nematoda

HELODERMATIDAE Heloderma suspectum Cope Macdonaldius andersoni—Nematoda

IGUANIDAE Undetermined iguana Ozolaimus prolixa —Nematoda Amblyomma cajennense—Acari Amblyomma dissimile—Acari Amblyomma scutatum—Acari Pterygosomatidae gen. sp.—Acari Ctenosaura acanthura (Shaw) Oochoristica sp.—Cestoidea Cyrtosomum scelopori—Nematoda Ozolaimus ctenosauri—Nematoda Amblyomma rotundatum—Acari Amblyomma scutatum—Acari Ctenosaura hemilopha (Cope) Oochoristica sp.—Cestoidea Cyrtosomum scelopori—Nematoda Ctenosaura oaxacana Kohler & Hasbun Oochoristica whitfieldi—Cestoidea Cyrtosomum scelopori—Nematoda Ctenosaura pectinata (Wiegmann) Oochoristica sp.—Cestoidea Oochoristica acapulcoensis—Cestoidea Oochoristica leonregagnonae—Cestoidea

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Oochoristica osheroffi—Cestoidea Oochoristica whitentoni—Cestoidea Mesocestoides sp.—Cestoidea Centrorhynchus sp.—Acanthocephala Cyrtosomum scelopori—Nematoda Alaeuris mexicana—Nematoda Physaloptera obtussima—Nematoda Ozolaimus ctenosauri—Nematoda Ozolaimus megatyphlon—Nematoda Ozolaimus sp.—Nematoda Thubunaea ctenosauri—Nematoda Argasidae gen. sp.—Acari Amblyomma dissimile—Acari Amblyomma scutatum—Acari Hirstiella bakeri—Acari Ctenosaura similis (Gray) Amblyomma rotundatum—Acari Dipsosaurus dorsalis (Baird & Girard) Hyponeocula imitator—Acari Iguana iguana (Linnaeus) Alaeuris hirsutus—Nematoda Oswaldofilaria brevicaudata—Nematoda Ozolaimus cirratus—Nematoda Ozolaimus ctenosauri—Nematoda Ozolaimus megatyphlon—Nematoda Amblyomma dissimile—Acari Amblyomma scutatum—Acari Geckobiella texana—Acari Sauromalus hispidus Stejneger Hirstiella pyriformis—Acari Sauromalus ater Duméril (= Sauromalus obesus) Hirstiella pyriformis—Acari Sauromalus varius Dickerson Hirstiella pyriformis—Acari

PHRYNOSOMATIDAE Callisaurus draconoides Blainville Hexidionis lacerticola—Acari Callisaurus draconoides carmenensis Dickerson Cyrtosomum penneri—Nematoda Callisaurus draconoides gabii Cope Cyrtosomum penneri—Nematoda Callisaurus draconoides splendidus Dickerson Cyrtosomum penneri—Nematoda Hoolbrookia maculata Girard Hexidionis lacerticola—Acari Petrosaurus repens Van Denbourgh Oochoristica sp.—Cestoidea Ascarops sp.—Nematoda

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Parapharyngodon grismeri—Nematoda Physaloptera sp.—Nematoda Spauligodon giganticus—Nematoda Strongyluris similis—Nematoda Petrosaurus sp. Cyrtosomum penneri—Nematoda Petrosaurus thalassinus (Cope) Parapharyngodon grismeri—Nematoda Physaloptera sp.—Nematoda Spauligodon giganticus—Nematoda Strongyluris similis—Nematoda Trombiculidae gen. sp.—Acari Phrynosoma sp. Physaloptera sp.—Nematoda Amblyomma dissimile—Acari Amblyomma rotundatum—Acari Geckobiella texana—Acari Eutrombicula alfreddugesi—Acari Phrynosoma asio Cope Cyrtosomum penneri—Nematoda Phrynosoma braconnieri Duméril & Bocourt Oochoristica phrynosomatis—Cestoidea Skrjabinoptera phrynosoma—Nematoda Phrynosoma cornutum (Harlan) Skrjabinoptera phrynosoma—Nematoda Phrynosoma ditmarsi Stejneger Oochoristica scelopori—Cestoidea Oligacanthorhynchidae gen. sp.—Acantocephala Physaloptera sp.—Nematoda Skrjabinoptera phrynosoma—Nematoda Phrynosoma hernandezi Girard Skrjabinoptera phrynosoma—Nematoda Phrynosoma mcallii (Hallowell) Skrjabinoptera phrynosoma—Nematoda Phrynosoma orbiculare (Linnaeus) Eutrombicula alfreddugesi—Acari Phrynosoma solare Gray Skrjabinoptera phrynosoma—Nematoda Phrynosoma taurus Dugès Oochoristica phrynosomatis—Cestoidea Skrjabinoptera phrynosoma—Nematoda Sceloporus sp. Cyrtosomum scelopori—Nematoda Macdonaldius grassi—Nematoda Skrjabinodon scelopori—Nematoda Geckobiella texana—Acari Hirstiella bakeri—Acari Pterygosomatidae gen. sp.—Acari Eutrombicula alfreddugesi—Acari Acomatacarus arizonensis—Acari

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Sceloporus acanthinus Bocourt Physaloptera retusa—Nematoda Sceloporus aeneus aeneus Wiegmann Eutrombicula alfreddugesi—Acari Hexidionis biagii—Acari Sceloporus bulleri Boulenger Eutrombicula alfreddugesi—Acari Eutrombicula bitarsala—Acari Sceloporus chrysostictus Cope Eutrombicula alfreddugesi—Acari Sceloporus clarki Baird & Girard Microtrombicula intermedia—Acari Sceloporus couchi Baird Eutrombicula alfreddugesi—Acari Sceloporus cyanogenys Cope Eutrombicula alfreddugesi—Acari Sceloporus formosus Wiegmann Strongyluris similis—Nematoda Spauligodon oxkutzcabiensis—Nematoda Physaloptera retusa—Nematoda Sceloporus grammicus Wiegmann Oochoristica scelopori—Cestoidea Mesocestoides sp.—Cestoidea Strongyluris similis—Nematoda Spauligodon giganticus—Nematoda Spauligodon lamothei—Nematoda Spauligodon oxkutzcabiensis—Nematoda Physaloptera retusa—Nematoda Skrjabinodon scelopori—Nematoda Skrjabinoptera scelopori—Nematoda Thubunaea intestinalis—Nematoda Geckobiella texana—Acari Eutrombicula alfreddugesi—Acari Eutrombicula bitarsala—Acari Sceloporus grandaevus (Dickerson) Cyrtosomum penneri—Nematoda Thubunaea iguanae—Nematoda Sceloporus horridus Wiegmann Geckobiella texana—Acari Sceloporus hunsakeri Hall & Smith Trombiculidae gen. sp.—Acari Sceloporus jarrovii Cope Oochoristica scelopori—Cestoidea Mesocestoides sp.—Cestoidea Centrorhynchus sp.—Acanthocephala Gongylonema sp.—Nematoda Strongyluris similis—Nematoda Mermis sp.—Nematoda Macdonaldius grassi—Nematoda Piratuba prolifica—Nematoda

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Spauligodon giganticus—Nematoda Abbreviata terrapenis—Nematoda Physaloptera retusa—Nematoda Scatonema wuelkeri– Nematoda Skrjabinoptera phrynosoma—Nematoda Thubunaea iguanae—Nematoda Thubunaea intestinalis—Nematoda Ascarops sp.—Nematoda Physocephalus sp.—Nematoda Euschoengastoides tumidus—Acari Eutrombicula alfreddugesi—Acari Hyponeocula sauricola—Acari Sceloporus licki Van Denburgh Trombiculidae gen. sp.—Acari Acomatacarus arizonensis—Acari Odontacarus robbinsi—Acari Sceloporus megalepidurus Smith Oochoristica scelopori—Cestoidea Acuarioidea gen. sp.—Nematoda Spauligodon oxkutzcabiensis—Nematoda Sceloporus minor Cope Spauligodon lamothei—Nematoda Sceloporus microlepidotus Wiegmann Pharyngodon sp.—Nematoda Hirstiella pelaezi—Acari Hirstiella sp.—Acari Eutrombicula alfreddugesi—Acari Sceloporus mucronatus Cope Oochoristica scelopori—Cestoidea Strongyluris similis—Nematoda Pharyngodon sp.—Nematoda Spauligodon giganticus—Nematoda Spauligodon oxkutzcabiensis—Nematoda Physaloptera retusa—Nematoda Ascarops sp. —Nematoda Sceloporus omiltemanus Günther (= Sceloporus mucronatus in part) Piratuba prolifica—Nematoda Sceloporus orcutti orcutti Stejneger Parapharyngodon iguanae—Nematoda Sceloporus nelsoni Cochran Strongyluris sp.—Nematoda Parapharyngodon alvarengai—Nematoda Hexidionis allredi—Acari Sceloporus olivaceus Smith Eutrombicula alfreddugesi—Acari Sceloporus ornatus Baird Geckobiella texana—Acari Sceloporus palaciosi Lara-Gongora Hirstiella pelaezi—Acari

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Eutrombicula alfreddugesi—Acari Sceloporus parvus Smith Oochoristica scelopori—Cestoidea Cyrtosomum penneri—Nematoda Physaloptera retusa—Nematoda Thubunaea intestinalis—Nematoda Sceloporus poinsetti Baird & Girard Geckobiella texana—Acari Sceloporus pyrocephalus Cope Geckobiella texana—Acari Sceloporus siniferus Cope Geckobiella texana—Acari Eutrombicula acapulcensis—Acari Eutrombicula alfreddugesi—Acari Acomatacarus arizonensis—Acari Sceloporus spinosus Wiegmann Skrjabinoptera phrynosoma—Nematoda Geckobiella texana—Acari Sceloporus torquatus Wiegmann Mesocestoides sp.—Cestoidea Strongyluris similis—Nematoda Macdonaldius grassi—Nematoda Spauligodon oxkutzcabiensis—Nematoda Physaloptera retusa—Nematoda Skrjabinodon scelopori—Nematoda Skrjabinoptera scelopori—Nematoda Skrjabinoptera sp.—Nematoda Physocephalus sp.—Nematoda Geckobiella texana—Acari Hirstiella pelaezi—Acari Hirstiella trombidiformis—Acari Eutrombicula alfreddugesi—Acari Sceloporus torquatus torquatus Strongyluris acaudata—Nematoda Geckobiella texana—Acari Hirstiella pelaezi—Acari Hirstiella trombidiformis—Acari Sceloporus utiformis Cope Geckobiella texana—Acari Sceloporus variabilis Wiegmann Oochoristica scelopori—Cestoidea Cyrtosomum penneri—Nematoda Piratuba lanceolata—Nematoda Physaloptera retusa—Nematoda Physocephalus sp.—Nematoda Geckobiella texana—Acari Eutrombicula alfreddugesi—Acari Sceloporus variabilis variabilis Wiegmann Eutrombicula alfreddugesi—Acari Sceloporus zosteromus Cope

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Acomatacarus arizonensis—Acari Odontacarus robbinsi—Acari Sceloporus zosteromus rufidorsum Yarrow Cyrtosomum penneri—Nematoda Eutrombicula alfreddugesi—Acari Uma exsul Schmidt & Bogert Skrjabinoptera phrynosoma—Nematoda Eutrombicula alfreddugesi—Acari Uma paraphygas Williams, Chrapliwy & Smith Skrjabinoptera phrynosoma—Nematoda Urosaurus auriculatus (Cope) Eutrombicula alfreddugesi—Acari Urosaurus nigricaudus (Cope) Oligacanthorhynchidae gen. sp.—Acanthocephala Strongyluris similis—Nematoda Thubunaea iguanae—Nematoda Acomatacarus arizonensis—Acari Odontacarus robbinsi—Acari Urosaurus ornatus (Baird & Girard) Hexidionis allredi—Acari Hexidionis lacerticola—Acari Uta concinna Dickerson Whartonacarus nativitatis—Acari Uta stansburiana Baird & Girard Skrjabinoptera phrynosoma—Nematoda Thubunaea ctenosauri—Nematoda Uta stansburiana taylori Smith Hexidionis lacerticola—Acari Uta stansburiana stejnegeri Schmidt Eutrombicula alfreddugesi—Acari

POLYCHROTIDAE Anolis sp. Eutrombicula alfreddugesi—Acari Anolis barkeri Schmidt Terranova sp.—Nematoda Anolis lemurinus Cope Eutrombicula alfreddugesi—Acari Anolis megapholidotus Smith Rhabdias leonae—Nematoda Anolis nebulosus (Wiegmann) Oochoristica sp.—Cestoidea Mesocestoides sp.—Cestoidea Parapharyngodon alvarengai—Nematoda Anolis rodriguezi Bocourt Eutrombicula alfreddugesi—Acari Anolis sericeus Hallowell Eutrombicula alfreddugesi—Acari Anolis tropidonotus Peters Piratuba sp.—Nematoda

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Anolis uniformis Cope Eutrombicula alfreddugesi—Acari

SCINCIDAE Mabuya unimarginata Cope (= Mabuya brachypoda) Mesocoelium monas—Trematoda Plestiodon sp. (= Eumeces sp.) Mesocoelium monas—Trematoda Plestiodon brevirostris (Günther) (= Eumeces brevirostris) Eutrombicula bitarsala—Acari

TEIIDAE Ameiva undulata (Wiegmann) Mesocoelium monas—Trematoda Physaloptera retusa—Nematoda Eutrombicula alfreddugesi—Acari Ameiva undulata gaigeae (Smith & Laufe) Eutrombicula alfreddugesi—Acari Ameiva undulata undulata (Wiegmann) Eutrombicula alfreddugesi—Acari Aspidoscelis sp. Eutrombicula alfreddugesi—Acari Aspidoscelis angusticeps (Cope) Eutrombicula alfreddugesi—Acari Aspidoscelis costata (Cope) Hexidionis allredi—Acari Aspidoscelis deppii (Wiegmann) Spauligodon garciaprietoi—Nematoda Aspidoscelis deppii deppii (Wiegmann) Eutrombicula acapulcensis—Acari Eutrombicula alfreddugesi—Acari Aspidoscelis guttata immutabilis (Cope) Eutrombicula alfreddugesi—Acari Aspidoscelis hyperythra (Cope) Thubunaea iguanae—Nematoda Aspidoscelis labialis (Stejneger) Pharyngodon cnemidophori—Nematoda Hexidionis lacerticola—Acari Acomatacarus arizonensis—Acari Aspidoscelis mexicana (Peters) Spauligodon garciaprietoi—Nematoda Aspidoscelis tigris (Baird & Girard) Skrjabinoptera phrynosoma—Nematoda Thubunaea ctenosauri—Nematoda

XANTUSIIDAE Lepidophyma gaigeae Mosauer Bitegmen gerrhonoti—Cestoidea

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Spauligodon giganticus—Nematoda Ascaridia sp.—Nematoda Lepidophyma smithi Bocourt Tequisistlana oaxacensis—Acari Lepidophyma tuxtlae Werler & Shannon Raillietnema brachyspiculatum—Nematoda Spauligodon oxkutzcabiensis—Nematoda Xantusia bolsonae Webb Parapharyngodon californiensis—Nematoda

XENOSAURIDAE Xenosaurus platyceps King & Thompson Spauligodon xenosauri—Nematoda

Order Squamata (snakes)

Undetermined snakes Amblyomma dissimile—Acari Ixodorhynchus liponyssoides—Acari “Serpiente chichicua” Eutrombicula alfreddugesi—Acari “Culebra roja” Ophiotaenia nattereri—Cestoidea “Mazacuata” Amblyomma dissimile—Acari BOIDAE Boa constrictor (Linnaeus) Styphlodora horrida—Trematoda Telorchis corti—Trematoda Crepidobothrium gerrardi—Cestoidea Gnathostoma binucleatum—Nematoda Gnathostoma sp.—Nematoda Kalicephalus subulatus—Nematoda Macdonaldius colimensis—Nematoda Macdonaldius oschei—Nematoda Amblyomma dissimile—Acari Ophionyssus natricis—Acari Porocephalus clavatus—Crustacea COLUBRIDAE Bogertophis subocularis (Brown) Amblyomma elaphense—Acari Chionactis occipitalis (Hallowell) Hyponeocula imitator—Acari Clelia clelia (Daudin) Infidum similis—Trematoda Ochetosoma ellipticum—Trematoda Macdonaldius oschei—Nematoda Coluber constrictor Linnaeus Kiricephalus coarctatus—Crustacea

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Coluber flagellum Shaw (= Masticophis flagellum) Hyponeocula imitator—Acari Coluber mentovarius (Duméril, Bibron & Duméril) (= Masticophis mentovarius) Mesocestoides sp.—Cestoidea Oligacanthorhynchidae gen. sp.—Acantocephala Coniophanes bipunctatus (Günther) Infidum similis—Trematoda Catadiscus marinholutzi—Trematoda Ochetosoma ellipticum—Trematoda Coniophanes imperialis (Kennicott) Catadiscus marinholutzi—Trematoda Rauschiella tineri—Trematoda Ochetosoma ellipticum—Trematoda Coniophanes quinquevittatus (Duméril, Bibron & Duméril) Infidum similis—Trematoda Catadiscus marinholutzi—Trematoda Ochetosoma ellipticum—Trematoda Opisthogonimus tabascensis—Trematoda Conophis vittatus Peters Macdonaldius oschei—Nematoda Conopsis lineata (Kennicott) Oligacanthorhynchidae gen. sp.—Acantocephala Cryophis hallbergi Bogert & Duellman Kalicephalus inermis macrovulvus—Nematoda Mastigodryas melanolomus (Cope) (= Dryadophis melanolomus) Ochetosoma ellipticum—Trematoda Styphlodora horrida—Trematoda Drymarchon corais (Boie) Proctocaecum megacetabulum—Trematoda Infidum similis—Trematoda Ochetosoma chauhani—Trematoda Ochetosoma ellipticum—Trematoda Ochetosoma elongatum—Trematoda Ochetosoma grandispinus—Trematoda Styphlodora horrida—Trematoda Proterodiplostomum ophidum—Trematoda Kalicephalus inermis coronellae—Nematoda Ophidascaris ochoterenai—Nematoda Macdonaldius oschei—Nematoda Eutrombicula alfreddugesi—Acari Raillietiella furcocerca—Crustacea Drymobius margaritiferus (Schlegel) Mesocoelium monas—Trematoda Ochetosoma ellipticum—Trematoda Mesocestoides sp.—Cestoidea Geophis anocularis Dunn Oaxacarus geophis—Acari

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Macdonaldius oschei—Nematoda Lampropeltis getula (Linnaeus) Hyponeocula imitator—Acari Lampropeltis sp. Lampropeltis triangulum (Lacépède) Styphlodora horrida—Trematoda Ophionyssus natricis—Acari Leptodeira cussiliris Duellman (= Leptodeira annulata) Proteocephalus sp.—Cestoidea Rhabdias fuscovenosa—Nematoda Leptodeira maculata (Hallowell) Oligacanthorhynchidae gen. sp.—Acantocephala Rhabdias fuscovenosa—Nematoda Rhabdias lamothei—Nematoda Ixodorhynchus leptodeirae—Acari Leptodeira septentrionalis Kennicott Infidum similis—Trematoda Catadiscus marinholutzi—Trematoda Ochetosoma ellipticum—Trematoda Rhabdias fuscovenosa—Nematoda Infidum similis—Trematoda Rauschiella tineri—Trematoda Ochetosoma ellipticum—Trematoda Telorchis corti—Trematoda Leptophis mexicanus Duméril, Bibron & Duméril Mesocoelium monas—Trematoda Ochetosoma ellipticum—Trematoda Leptophis mexicanus mexicanus Duméril, Bibron & Duméril Eutrombicula alfreddugesi—Acari Leptophis sp. Ninia sebae (Duméril, Bibron & Duméril) Mesocoelium monas—Trematoda Telorchis corti—Trematoda Nerodia erythrogaster (Forster) Dasymetra srivastavai—Trematoda Ochetosoma aniarum—Trematoda Ophiotaenia perspicua—Cestoidea Nerodia rhombifer (Hallowell) Clinostomum marginatum—Trematoda Infidum similis—Trematoda Styphlodora horrida—Trematoda Cheloniodiplostomum delillei—Trematoda Telorchis corti—Trematoda Gnathostoma binucleatum—Nematoda Gnathostoma sp.—Nematoda Nerodia sp. Ophidascaris ashi—Nematoda Oxybelis aeneus (Wagler) Oligacanthorhynchidae gen. sp.—Acantocephala

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Pantherophis guttatus (Liinaeus) Kiricephalus coarctatus—Crustacea Pituophis deppei (Duméril) Kiricephalus coarctatus—Crustacea Pituophis deppei deppei (Duméril) Ophionyssus natricis—Acari Pliocercus elapoides Cope Ochetosoma ellipticum—Trematoda Pseudelaphe phaescens (Dowling) Eutrombicula alfreddugesi—Acari Rhinocheilus lecontei Baird & Girard Oligacanthorhynchidae gen. sp.—Acanthocephala Salvadora mexicana (Duméril, Bibrón & Duméril) Oligacanthorhynchidae gen. sp.—Acantocephala Spilotes pullatus (Linnaeus) Styphlodora horrida—Trematoda Amblyomma dissimile—Acari Amblyomma rotundatum—Acari Eutrombicula alfreddugesi—Acari Storeira sp. Rhabdias fuscovenosa—Nematoda Thamnophis sp. Catadiscus marinholutzi—Trematoda Infidum similis—Trematoda Rauschiella tineri—Trematoda Ochetosoma brevicaecum—Trematoda Ochetosoma ellipticum—Trematoda Styphlodora horrida—Trematoda Thamnophis eques (Reuss) Tylodelphys sp.—Trematoda Ochetosoma brevicaecum—Trematoda Telorchis corti—Trematoda Ophiotaenia racemosa—Cestoidea Proteocephalus variabilis—Cestoidea Polymorphus brevis—Acanthocephala Capillariinae gen. sp.—Nematoda Contracaecum sp.—Nematoda Eustrongylides sp.—Nematoda Spiroxys susanae—Nematoda Falcaustra mexicana—Nematoda Rhabdias fuscovenosa—Nematoda Thamnophis eques megalops (Kennicott) Telorchis corti—Trematoda Thamnophis godmani (Günther) Rhabdias fuscovenosa—Nematoda Thamnophis marcianus (Baird & Girard) Telorchis corti—Trematoda Spiroxys susanae—Nematoda Capillaria xochimilcensis—Nematoda Thamnophis melanogaster (Wiegmann)

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Tylodelphys sp.—Trematoda Ochetosoma brevicaecum—Trematoda Pneumatophilus variabilis—Trematoda Telorchis corti—Trematoda Bothriocephalus acheilognathi—Cestoidea Ophiotaenia racemosa—Cestoidea Proteocephalus variabilis—Cestoidea Polymorphus brevis—Acanthocephala Contracaecum sp.—Nematoda Serpinema trispinosum—Nematoda Eustrongylides sp.—Nematoda Dracunculus ophidensis—Nematoda Spiroxys susanae—Nematoda Rhabdias fuscovenosa—Nematoda Spinitectus osorioi—Nematoda Thamnophis proximus (Say) Rhabdias fuscovenosa—Nematoda Thamnophis validus (Kennicott) Porrocaecum sp.—Nematoda Strigeoidea gen. sp.—Trematoda Trimorphodon biscutatus Duméril, Bibron & Duméril Macdonaldius colimensis—Nematoda Macdonaldius oschei—Nematoda Macdonaldius seetai—Nematoda Trimorphodon tau Cope Mesocestoides sp.—Cestoidea Oligacanthorhynchidae gen. sp.—Acantocephala Ophidascaris ochoterenai—Nematoda Kalicephalus inermis—Nematoda Raillietiella furcocerca—Crustacea Tropidodipsas fasciata Günther Cruzia tropidodipsi—Nematoda Tropidodipsas sartorii (Cope) Agamascaris sp.—Nematoda Rhabdias fuscovenosa—Nematoda

ELAPIDAE Micrurus diastema (Duméril, Bibron & Duméril) Infidum similis—Trematoda Ochetosoma ellipticum—Trematoda Proteocephalus micruricola—Cestoidea Micrurus fulvius (Linnaeus) Kiricephalus coarctatus—Crustacea

VIPERIDAE Agkistrodon bilineatus Günther Hexametra chamelensis—Nematoda Atropoides nummifer mexicanus (Duméril, Bibron & Duméril) Porocephalus crotali—Crustacea Atropoides nummifer nummifer (Rüppell)

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Porocephalus crotali—Crustacea Atropoides olmec Pérez, Smith & Juliá Kalicephalus inermis—Nematoda Bothrops asper (Garman) Infidum similis—Trematoda Ochetosoma crotali—Trematoda Ochetosoma ellipticum—Trematoda Styphlodora horrida—Trematoda Kalicephalus inermis coronellae—Nematoda Porocephalus crotali—Crustacea Crotalus atrox Baird & Girard Ophionyssus natricis—Acari Porocephalus crotali—Crustacea Crotalus basiliscus (Cope) Oochoristica sp.—Cestoidea Macdonaldius oschei—Nematoda Porocephalus basiliscus—Crustacea Crotalus basiliscus basiliscus (Cope) Porocephalus crotali—Crustacea Crotalus cerastes cercobombus Savage & Cliff Ophionyssus natricis—Acari Crotalus durissus Linnaeus Amblyomma dissimile—Acari Ophionyssus natricis—Acari Porocephalus crotali—Crustacea Crotalus lepidus lepidus (Kennicott) Ophionyssus natricis—Acari Crotalus molossus Baird & Girard Kalicephalus inermis macrovulvus—Nematoda Crotalus polystictus (Cope) Ozolaimus ctenosauri—Nematoda Crotalus ravus Cope (= Sistrurus ravus) Ophionyssus natricis—Acari Crotalus sp. Ophiotaenia perspicua—Cestoidea Crotalus tortugensis Van Denburgh & Slevin Porocephalus tortugensis—Crustacea Crotalus triseriatus (Wagler) Kalicephalus inermis coronellae—Nematoda Ixobioides sp.—Acari Ophionyssus natricis—Acari Crotalus willardi Meek Mesocestoides sp.—Cestoidea Oligacanthorhynchidae gen. sp.—Acantocephala

Order Testudines Undetermined turtles Gnathostoma binucleatum—Nematoda Falcaustra concinnae—Nematoda

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Amblyomma cajennense—Acari Amblyomma dissimile—Acari

CHELONIIDAE Chelonia mydas (Linnaeus) Cymatocarpus solearis –Trematoda Calycodes anthos—Trematoda Pachypsolus irroratus—Trematoda Enodiotrema megachondrus—Trematoda Adenogaster serialis—Trematoda Diaschistorchis pandus—Trematoda Rhytidodes gelatinosus—Trematoda Carettacola stunkardi—Trematoda Orchidasma amphiorchis—Trematoda Chelonia mydas agassizi Bocourt Learedius learedi—Trematoda Eretmochelys imbricata (Linnaeus) Calycodes anthos—Trematoda Enodiotrema megachondrus—Trematoda Styphlotrema solitarium—Trematoda Cetiosaccus galapagensis—Trematoda Diaschistorchis pandus—Trematoda Pleurogonius linearis—Trematoda Pleurogonius sp.—Trematoda Carettacola stunkardi—Trematoda Orchidasma amphiorchis—Trematoda Lepidochelys olivacea (Eschscholtz) Calycodes anthos—Trematoda Plesiochorus cymbiformis—Trematoda Pachypsolus irroratus—Trematoda Enodiotrema megachondrus—Trematoda Adenogaster serialis—Trematoda Pleurogonius lobatus—Trematoda Pyelosomum cochlear—Trematoda Prosorchis psenopsis—Trematoda Orchidasma amphiorchis—Trematoda Pyelosomum renicapite—Trematoda Ozobranchus branchiatus—Hirudinea Ozobranchus sp.—Hirudinea

CHELYDRIDAE Chelydra serpentina (Linnaeus) Cheloniodiplostomum delillei—Trematoda Telorchis corti—Trematoda Neopolystoma domitilae—Monogenoidea

DERMATEMYDIDAE Dermatemys mawii Gray Caballerodiscus resupinatus—Trematoda Caballerodiscus tabascensis—Trematoda

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Parachiorchis parviacetabulatus—Trematoda Pseudocleptodiscus margaritae—Trematoda Dermatemytrema trifoliatum—Trematoda Octangioides skrjabini—Trematoda Octangioides tlacotalpensis—Trematoda Choanophorus rovirosai—Trematoda Serpinema trispinosum—Nematoda Placobdella sp.—Hirudinea

EMYDIDAE Chrysemys sp. Spiroxys triretrodens—Nematoda Terrapene carolina mexicana (Gray) Amblyomma dissimile—Acari Terrapene carolina yucatana (Boulenger) Amblyomma sabanerae—Acari Terrapene coahuila Schmidt & Owens Telorchis sp.—Trematoda Polystomoides sp.—Monogenoidea Oxyuridae gen. sp.—Nematoda Terrapene ornata (Agassiz) Neoechinorhynchus emydis—Acanthocephala Neopolystoma domitilae—Monogenoidea Caballerodiscus tabascensis—Trematoda Dictyangium chelydrae—Trematoda Telorchis dissimilis—Trematoda Telorchis membranaceus—Trematoda Serpinema trispinosum—Nematoda Spiroxys contortus—Nematoda Trachemys scripta (Schoepf) Cephalogonimus vesicaudus—Trematoda Caballerodiscus tabascensis—Trematoda Falcaustra sp.—Nematoda Telorchis attenuatum—Trematoda Telorchis corti—Trematoda Neoechinorhynchus emyditoides—Acanthocephala Neoechinorhynchus sp.—Acanthocephala Neopolystoma domitilae—Monogenoidea Neopolystoma orbiculare—Monogenoidea Polystomoides coronatum—Monogenoidea Camallanus sp.—Nematoda Serpinema trispinosum—Nematoda Gnathostoma binucleatum—Nematoda Gnathostoma sp.—Nematoda Spiroxys contortus—Nematoda Spiroxys sp.—Nematoda Trachemys scripta elegans (Wied) Ophionyssus natricis—Acari Trachemys venusta (Gray) Neoechinorhynchus schmidti—Acantocephala

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Ophionyssus natricis—Acari

GEOEMYDIDAE Rhinoclemmys areolata (Duméril & Bibron) Nematophila grandis—Trematoda Telorchis caballeroi—Trematoda Telorchis corti—Trematoda Telorchis dhongokii—Trematoda Telorchis dissimilis—Trematoda Telorchis robustus—Trematoda Telorchis singularis—Trematoda Atractis impura—Nematoda Klossinemella caballeroi—Nematoda Serpinema trispinosum—Nematoda Cruzia mexicana—Nematoda Falcaustra sp.—Nematoda Amblyomma dissimile—Acari Amblyomma sabanerae—Acari Rhinoclemmys pulcherrima (Gray) Atractis impura—Nematoda Longibucca sp.—Nematoda Cruzia mexicana—Nematoda Amblyomma dissimile—Acari Amblyomma sabanerae—Acari Rhinoclemmys rubida (Cope) Amblyomma dissimile—Acari Rhinoclemmys sp.

KINOSTERNIDAE Amblyomma sabanerae—Acari Claudius angustatus Cope Heronimus mollis—Trematoda Cheloniodiplostomum delillei—Trematoda Telorchis corti—Trematoda Telorchis patonianus—Trematoda Kinosternon sp. Cheloniodiplostomum sp.—Trematoda Telorchis corti—Trematoda Kinosternon herrerai Stejneger Placobdella moorei—Hirudinea Placobdella sp.—Hirudinea Kinosternon hirtipes Wagler Posthodiplostomum minimum—Trematoda Heronimus mollis—Trematoda Telorchis corti—Trematoda Polymorphus brevis—Acanthocephala Polystomoidella oblonga—Monogenoidea Polystomoidella whartoni—Monogenoidea Serpinema trispinosum—Nematoda

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Spiroxys contortus—Nematoda Spiroxys corti—Nematoda Spiroxys triretrodens—Nematoda Hedruris siredonis—Nematoda Falcaustra affinis—Nematoda Falcaustra intermedia—Nematoda Falcaustra wardi—Nematoda Placobdella moorei—Hirudinea Placobdella sp.—Hirudinea Kinosternon integrum Le Conte Cheloniotrema tropicum—Trematoda Telorchis corti—Trematoda Telorchis dissentaneus—Trematoda Telorchis relfooti- Trematoda Telorchis sp.—Trematoda Polystomoidella oblonga—Monogenoidea Polystomoidella whartoni—Monogenoidea Gnathostoma binucleatum—Nematoda Gnathostoma turgidum—Nematoda Spiroxys corti—Nematoda Placobdella sp.—Hirudinea Kinosternon leucostomum (Duméril & Bibron) Caballerodiscus tabascensis—Trematoda Heronimus mollis—Trematoda Hapalorhynchus albertoi—Trematoda Telorchis caballeroi—Trematoda Telorchis corti—Trematoda Neopolystoma orbiculare—Monogenoidea Polystomoidella oblonga—Monogenoidea Placobdella sp.—Hirudinea Amblyomma dissimile—Acari Staurotypus triporcatus (Wiegmann) Infidum similis—Trematoda Telorchis bravoae—Trematoda Telorchis patonianus—Trematoda Klossinemella parvicapiticoronata—Nematoda Gnathostoma binucleatum—Nematoda Gnathostoma sp.—Nematoda Ophionyssus natricis—Acari Staurotypus salvini Gray Gnathostoma sp.—Nematoda

TESTUDINIDAE Gopherus sp. Atractis impura—Nematoda Gopheruris aspicula—Nematoda Tachygonetria macrolaimus tetrapapillata—Nematoda Tachygonetria neartica—Nematoda Thaparia macrocephalus—Nematoda Thaparia microcephalus—Nematoda

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Gopherus agassizi (Cooper) Alaeuris caballeroi—Nematoda Alaeuris gopheri pudica—Nematoda Alaeuris kinsellai sonorae—Nematoda Alaeuris longicollis—Nematoda Alaeuris paramazzottii—Nematoda Gopherus berlandieri (Agassiz) Atractis impura—Nematoda Alaeuris caballeroi—Nematoda Alaeuris gopheri gopheri—Nematoda Alaeuris kinsellai kinsellai—Nematoda Alaeuris mazzottii—Nematoda Alaeuris longicollis—Nematoda Gopheruris aspicula—Nematoda Tachygonetria macrolaimus tetrapapillata—Nematoda Tachygonetria neartica—Nematoda Thaparia macrocephalus—Nematoda Thaparia microcephalus—Nematoda Gopherus flavomarginatus Legler Alaeuris caballeroi—Nematoda Alaeuris gopheri gopheri—Nematoda Alaeuris kinsellai kinsellai—Nematoda Alaeuris longicollis—Nematoda Alaeuris mazzottii—Nematoda Ornithodoros turicata—Acari

TRIONYCHIDAE Apalone spinifera (Le Sueur) Cephalogonimus vesicaudus—Trematoda Proctocaecum nuevoleonensis—Trematoda Telorchis corti—Trematoda Telorchis sp.—Trematoda Vasotrema amydae—Trematoda Polystomoides coronatum—Monogenoidea Spiroxys amydae—Nematoda Placobdella parasitica—Hirudinea

Order Crocodylia CROCODYLIDAE

Caiman crocodylus (Linnaeus) Subtriquetra subtriquetra—Crustacea Crocodylus acutus (Cuvier) Pelaezia unami—Trematoda Proctocaecum caballeroi—Trematoda Dujardinascaris helicina—Nematoda Gnathostoma sp.—Nematoda Crocodylus moreleti (Duméril & Duméril) Acanthostomum americanum—Trematoda Paratrichosoma recurvum—Nematoda

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Pelaezia loossi—Trematoda Proctocaecum scyphocephalum—Trematoda Crocodilicola pseudostoma—Trematoda Massoprostatum longum—Trematoda Proterodiplostomum tumidulum—Trematoda Pseudoneodiplostomum groschafti —Trematoda Telorchis sp.—Trematoda Contracaecum sp.—Nematoda Dujardinascaris helicina—Nematoda Eustrongylides sp.—Nematoda Gnathostoma sp.—Nematoda Micropleura sp.—Nematoda

Discussion

In this paper we list 430 taxa of parasites associated with 68 amphibian and 219 reptile species in Mexico. The majority of these parasite species are nematodes (173 species, 40.1%) and trematodes (137, 31.8%), together encompassing about 71.9% of the parasite fauna. Less common are Acari (51, 11.9%), cestodes (29, 6.74%) and acanthocephalans (14, 3.25%). Monogeneans (10, 2.3%), hirudineans (8, 1.9%) and crustaceans (8, 1.85%) are rare. As noted by previous authors, the level of association of a given host group with aquatic habitats determines the richness of each one of these parasite groups (Brandt, 1936; Prokopic & Krivanec, 1975; Brooks, 1976). Parasite records from terrestrial amphibian and reptile species (as in lizards) involve mostly nematodes and acari with direct life cycles, while trematodes are more common in hosts that live primarily in aquatic habitats (as in turtles and colubrids). The host species with the largest number of parasite species are semiaquatic: Rhinella marina with 49 species, Lithobates vaillanti with 34 and L. montezumae with 30. According with Aho (1990) this high species richness is the result of the fact that these hosts spend time in water during their larval stages and their breeding periods, being exposed to trematodes and cestodes that are typically transmitted through the ingestion of aquatic invertebrates, while also spending time out of the water, being exposed to the skin penetration by nematode larvae, infestation with acari, and inoculation of nematodes by flying vectors. The three biogeographic groups of parasite species characterized by Pérez-Ponce de León et al. (2000), Nearctic, Neotropical and endemic, can be distinguished in our list. In some cases, parasite biogeographic affinities coincide with host affinities, showing some degree of evolutionary association. For example, the mexican species of leopard frogs examined for parasites (Lithobates berlandieri, L. brownorum, L. dunni, L. forreri, L. magnaocularis, L. megapoda, L. montezumae, L. neovolcanica, L. spectabilis), show a parasite fauna with 50% of the adult species (26 out of 52) having nearctic affinities, following the origins of the host group (Hillis et al., 1983; Hillis & Wilcox, 2005); a minority of the parasite fauna of this group of frogs (19 % of the adult species) has Neotropical affinities (for example, frogs from the Lithobates palmipes group). An important component of the parasite fauna of Mexican leopard frogs is constituted by endemic elements (31.4% of the adult species), that have probably speciated with their hosts. Leopard frogs biogeographic history is very complex, resulting in a high species richness in Mexico (Hillis et al., 1983; Zaldívar-Riverón et al., 2003). Some groups of parasites that are specific to this group of frogs have probably co-speciated with them. For example, this appears to be the case for species of the lung trematodes Haematoloechus spp., where 6 endemic species have been described (and more have been detected using molecular characters, León- Règagnon, 2003), and Glypthelmins spp., with two. Nematodes have been less studied, but it has already been suggested that records of Rhabdias sphaerocephala in Mexican leopard frogs actually belong to an endemic species not yet described (Martínez-Salazar pers. com.). Phylogenetic studies using DNA sequences may

METAZOAN PARASITES OF MEXICAN AMPHIBIANS AND REPTILES Zootaxa 1904 © 2008 Magnolia Press · 119 TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. show a higher percentage of endemic species in the parasite fauna of amphibians and reptiles in Mexico. This highlights the importance of incorporating molecular systematics in the completion of species inventories in poorly studied groups as are the helminths and acari parasites of wild fauna (León-Règagnon, 2003). Mites and ticks show different grades of host specificity; the most common parasitic mite of amphibians and reptiles is the chigger Eutrombicula alfreddugesi which has been collected in Mexico on one species of frogs, 29 lizards, 4 snakes, and many other terrestrial vertebrates. On the other hand, some species are highly specific to different host genera, for example, Geckobia leonilae to Phyllodactylus and Hirstiella otophila to Coleonyx (Hunter & Loomis, 1966; Hoffman & Morales-Malacara, 1986; present study). Among the Ixodidae, Amblyomma dissimile, A. rotundatum, A. sabanerae and A. scutatum have been refered to as specialists of amphibians and reptiles. Although A. dissimile has been mostly associated to reptiles, we found that it also parasitizes amphibians especially Rhinella marina. All of these species are typically Neotropical although Oliver et al. (1993) indicates that A. rotundatum has become established in the United States (Nearctic region). The transmission of all of these species is favoured by the fact that the hosts are mainly terrestrial or pass most of their life cycle out of water. On the other hand, the tick Amblyomma cajennense is a generalist species associated with a wide variety of terrestrial vertebrates, including mammals and birds (Barros-Battesti et al., 2006). The few records on amphibians and reptiles could be considered as accidental infestations. Only 287 (24.6%) of the total number of species of amphibians and reptiles reported in Mexico (1165) (Flores-Villela & Canseco-Márquez, 2004), have been surveyed for parasites so far. This suggests that our knowledge about parasites of amphibians and reptiles in Mexico is still far from complete. This is most evi- dent in Acari which have been recorded from only 115 species of amphibians and reptiles. Moreoever, the majority of these hosts have only one mite parasite species, Eutrombicula alfreddugesi (in nature) or Ophy- onyssus natricis (in captivity). There are 361 amphibian and 804 reptile species in Mexico, and mites and ticks have been collected from only 4.1 % (15 species) of amphibians and 11.4 % (92 species) of reptile species. Hoffmann and López-Campos (2000) recorded 2343 species of Acari in Mexico but only 51 (2.2 %) are parasites of amphibians and reptiles. The parasite fauna is an important component of the natural history of the host organisms that can be used as a powerful and predictable tool to support biodiversity studies and conservation initiatives (Brooks et al., 2001; Hoberg, 1996, 1997). Because of their complex life cycles, parasites provide information about trophic webs of their hosts and about the entire ecosystem. Knowledge about parasite species that are common to amphibians and reptiles of a particular region can be of crucial value in the study of the condition of populations of these hosts and in the planning of conservation strategies, in effect using parasites as “sentinel” species (Brooks, 2003). This tool is particularly valuable considering that many of the amphibian and reptile species are endangered. If we find that a particular amphibian or reptile population is free from their typical parasites, we can be sure that the ecosystem is in very poor condition and that the host population is severely threatened, because minimum conditions for the completion of the parasites life cycles (water quality or inter- mediate hosts populations) are absent. On the other hand, if unexpected parasites are present, they can be considered as potential emerging infectious diseases for the native host populations under stress conditions (Brooks & Ferrao, 2005; Brooks et al., 2006). The unequal representation of metazoan species in amphibians and reptiles from Mexico highlights the necessity to increase the sample effort considering the diversity of these host groups. Early actions can pre- vent major problems of local extintions as have been the case for many amphibian species (Lipps et al., 2005). For these reasons it is essential that specialists of different disciplines work as a team in integrated studies of parasite groups; only in this way can we take maximum advantage of biological material, time and financial resources in our efforts to know and preserve the herpetological fauna.

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Acknowledgements

This study was partially supported by Unidad de Informática para la Biodiversidad (UNIBIO) [Instituto de Biología, UNAM; Sistema de Informática para la Biodiversidad y el Ambiente (SIBA); Programa de Investi- gación Multidisciplinaria de Proyectos de Liderazgo y Superación Académica (IMPULSA); Coordinación de la Investigación Científica, UNAM]; National Science Foundation grant (DEB-0102383) to V.L.R., and Jonathan A. Campbell (University of Texas at Arlington), and by the grant: COI-0435/B1 “Lacandonia schis- matica: recurso genético estratégico para México y conservación de la Selva Lacandona” SEMARNAT-CON- ACYT to Elena Alvarez-Buylla. R.P.L. thanks CONACyT for a graduate scholarship (172349); C.G.C. thanks the Dirección General de Asuntos del Personal Académico (DGAPA-PROFIP), UNAM for a postdoctoral scholarship; L.G.P. thanks Georgina Ortega Leite for bibliographical support; and finally thanks to Alejandro Oceguera Figueroa, Eduardo Suárez Morales, Hans Klompen, Juan B. Morales Malacara, Uri García Vásquez, and Luis Canseco Márquez for their suggestions and comments to improve this manuscript. Special thanks to John H. Malone for the detailed revision of English language.

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Stunkard, H.W. (1938a) Parasitic flatworms in Yucatán. Publications of the Carnegie Institution of Washington, 491, 33– 50. Stunkard, H.W. (1938b) Oochoristica parvula n. nom. for Oochoristica parva Stunkard, 1938, preoccupied. Journal of Parasitology, 24, 554. Sudarikov, V.E. (1960) Suborder Strigeata La Rue, 1926. Superfamilly Proterodiplostomatoidea Sudarikov, 1960. In: Skrjabin, K.I. (Ed), Trematodes of Animals and Man. Academy of Sciences of the U.S.S.R., Moscow, U.S.S.R., pp. 601–694. Sullivan, J.J. (1977a) Revision of the genus Rauschiella Babero, 1951 (Digenea: Plagiorchiidae) with a redescription of R. palmipedis (Lutz, 1928) n. comb. from Venezuelan frogs. Proceeding of the Helminthological Society of Wash- ington, 44, 82–86. Sullivan, J.J. (1977b) Redescription of Choledocystus hepaticus (Lutz, 1928) n. comb., and the status of C. linguatula (Rudolphi,1819) (Trematoda: Plagiorchioidea). Proceeding of the Helminthological Society of Washington, 44, 162– 170. Tanigoshi, L.K. & Loomis, R.B. (1974) The genus Hyponeocula (Acarina, Trombiculidae) of Western North America. Melanderia, 17, 1–27. Teixeira de Freitas, J.F. (1963) Revisao da Familia Mesocoeliidae Dollfus, 1933 (Trematoda). Memorias do Instituto Oswaldo Cruz, 61, 177–311. Teixeira de Freitas, J.F. & Lent, H. (1941) Contribuicao ao conhecimento da sub-familia Kathaniinae Lane, 1914 (Nem- atoda: Subuluroidea). Arquivos Zoologicos do Estado de Sao Paulo, 3, 13–41. Telford, S.R. (1965a) A Study in Filariasis in Mexican snakes. Japanese Journal of Experimental Medicine, 35, 565– 586. Telford, S.R. (1965b) A new species of Thubunaea (Nematoda: Spiruroidea) from California Lizards. Japanese Journal of Experimental Medicine, 35, 111–114. Telford, S.R. (1965c) Some Thelandros (Nematoda: Oxyuridae) from Southern California lizards. Japanese Journal of Experimental Medicine, 35, 463–472. Thatcher, V.E. (1963a) The trematodes of the basilisk lizard from Tabasco, Mexico. Anales del Instituto de Biología, Universidad Nacional Autónoma de México, 34, 205–216. Thatcher, V.E. (1963b) Trematodes of turtles from Tabasco, Mexico, with a description of a new species of Dadaytrema (Trematoda: Paramphistomidae). American Midland Naturalist, 70, 347–355. Thatcher, V.E. (1963c) A new species of Westella (Trematoda: Opisthogoniminae) from a Mexican Snake. Journal of Parasitology, 49, 123–124. Thatcher, V.E. (1963d) Studies on the trematodes of the Mexican indigo snake (Drymarchon corais melanurus) with description of two new species. Transactions of the American Microscopical Society, 82, 371–380. Thatcher, V.E. (1964) Estudios sobre los tremátodos de reptiles de Tabasco, México: Lista de huéspedes y sus parásitos. Anales de la Escuela Nacional de Ciencias Biológicas, 13, 91–96. Tkach, V.V. & Snyder, S.D. (2003) Acanthostomum macroclemidis n. sp. (Digenea: Cryptogonimidae: Acanthostominae) from the Alligator snappin turtle, Macroclemys temmincki. Journal of Parasitology, 89, 159–167. Tkach, V.V., Timothy, D., Littlewood, J., Olson, P.D., Mike-Kinsella, J. & Swidersski, Z. (2003) Molecular phylogenetic analysis of the Microphalloidea Ward, 1901 (Trematoda: Digenea). Systematic Parasitology, 56, 1–15. Ubelaker, J.E. & Dailey, M.D. (1966) Observations on Kalicephalus subulatus Molin, 1861 from Nicaragua and Mexico. Revista de Biología Tropical, 14, 47–53. Ubelaker, J.E. & Yonus M. (1965) A new nematode, Cruzia tropidodipsi, parasitic in the snake Tropidodipsas fasciata. Transactions of the Kansas Academy of Sciences, 68, 194–197. Veiga, J.P., Salvador, A., Blázquez, C. & Galina, P. (2000) Skin pockets and the location of ectoparasitic mites on lizards in Baja California. Herpetological Journal, 10, 73–74. Walton, A.C. (1927) A Revision of the nematodes of the Leidy Collections. Proceedings of the Academy of Natural Sci- ences of Philadelphia, 79, 49–163. Walton, A.C. (1932) A redescription of Leptodera elongata, Baird, 1858 (Nematoda). Annals Magazine of Natural His- tory, 10, 146–150. Walton, A.C. (1940) Notes on amphibians parasites. Proceedings of the Helminthological Society of Washington, 7, 87– 91. Webb, J.P. Jr. & Loomis, R.B. (1970) Four species of Microtrombicula (Acarina: Trombiculidae) from Mexico and Nica- ragua. Bulletin of the Southern California Academy of Sciences, 69, 133–144. Webb, J.P. Jr. & Loomis, R.B. (1971) The subgenus Scapuscutala of the genus Microtrombicula (Acarina: Trombicul- idae) from North America. Journal of Medical Entomology, 8, 319–329. Welbourn, Jr. W.C. & Loomis, R.B. (1970) Three new species of Hannemania (Acarina, Trombiculidae) from amphibians of Western Mexico. Bulletin of the Southern California Academy of Sciences, 69, 65–73. Wharton, G.W. (1938) Acarina of Yucatan Caves. Carnegie Institute of Washington, 491, 137–152. Wharton, G.W. (1940) The genera Telorchis, Protenes, and Auridistomum (Trematoda: Reniferidae). Journal of Parasi-

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Locality index

Locality Latitude N Longitude W BAJA CALIFORNIA 5 mi E de Cerro del Castillo NA NA 5 mi N San Felipe 31°01’39” 114°50’07” 53 km N de San Felipe 31°29’25” 114°49’51” 60 mi N San Felipe 31°00’33” 114°49’08” A lo largo de toda la Península NA NA Bahía de los Angeles 28°56’43” 113°33’32” Bahía de San Francisquito 29°45’05” 114°18’36” Camalu 30°5100’’ 116°4’101’’ Cataviña 29°48’39” 114°46’35” Isla Ángel de la Guarda 29°26’26” 113°34’25” Isla Cedros 28°15’11” 115°15’00” Isla Granito (= Isla Alcatraz) NA NA Isla Mejía 29°34’00” 113°35’00” Isla San Esteban 28°42’00” 112°35’00” Las Arrastras NA NA SE de la Isla Angel de la Guarda 29°26’26” 113°34’25” BAJA CALIFORNIA SUR 12 Km S de San Antonio 23°50’00” 110°00’00’’ 19 km SW de San José del Cabo 23°02’49” 109°40’49” 3 km E (La Burrera) NA NA 3.2 km S de San Antonio 26°01’00” 111°31’00” Bahia de Asunción 27°08’20” 114°17’40” Bahía de Santa María NA NA Bahía Magdalena 24°38’14” 112°08’05” Boca de la Sierra 23°22’58” 109°48’45” El Limón NA NA Isla Cerralvo 24°09’55” 109°50’59” Isla Natividad NA NA Isla Tortuga NA NA La Ballena 26°22’36” 112°36’07” La Junta 26°26’36” 112°44’30” La Laguna NA NA La Paz 24°14’30” 110°28’08” La Presa 24°50’54” 110°59’25” Miraflores 23°22’05” 109°46’40” Región de los Cabos 22°53’00” 109°54’12” San Ignacio 27°16’51” 112°53’36” San Francisco de la Sierra 27°43’00” 113°12’45” San José de Comondú 16°02’00” 112°14’00” San José del Cabo 23°02’49” 109°40’49”

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Sierra de la Laguna, Cañón de San Dionisio 23°33’05” 109°50’37” CAMPECHE 5 km SW de Champotón 19°18’17” 90°44’54” 6 km W de Escárcega 18°36’26” 90°47’19” 7.5 km W de Escárcega 18°36’23” 90°48’15” Calakmul, Brecha a Flores Magón, El Papagayo Calakmul 18°45’08” 89°17’53” Carretera Xpujil-Bel-ka 18°37’25” 89°24’45” Ciudad del Carmen, Playa Bahama 19°51’33” 90°31’35” Escárcega 18°36’24” 90°44’04” Playa Bonita NA NA CHIAPAS 2 km NW Arriaga 16°14’48” 93°54’41” 4 km NW Tuxtla Gutierrez 93°08’38” 16°46’37” 6.5 km W Arriaga 16°13’59” 93°54’00” 8.6 km N, 12.6 km W Pijijiapan 93°12’26” 15°45’43” 9.3 km N Tuxtla Gutiérrez 93°06’56” 16°50’09” 3 km W Tuxtla Gutiérrez NA NA Aquacaste NA NA Cacahuatán (La Rioja) 14°58’59” 92°10’00” Cañón del Sumidero 16°49’ 57.1” 93°04’37.3” Cascadas de Agua Azul 17°15’20” 92°07’31” Cintalapa 16°41’42” 93°43’18” Corozal 15°00’26” 92°30’00” El Chirriadero a 6 km N de Chiapa de Corzo 16°45’39” 93°00’54” El Mercadito, Cintalapa 16°43’59” 93°43’00” Finca la Esperanza NA NA Huixtla 15°08’20” 92°27’57” La Trinitaria NA NA Laguna Bélgica 17°08’03” 93°19’00” Mapastepec 15°27’00” 92°53’00” Motozintla 15°21’30” 92°14’51” Ocosingo 16°54’26” 92°05’46” Ocosingo, Frontera Corozal 16°48’16” 90°54’03” Ocosingo, Frontera Corozal, Area Natural Protegida Lacandonia 16° 45’22” 91°00’32” Ocosingo, Frontera Corozal, Arroyo Nayte 16°47’39” 91°02’31” Ocosingo, Frontera Corozal, El Encaño 16°48’41” 91°04’39” Ocosingo, Frontera Corozal, Reserva Comunal El Cartón 16°47’28” 90°55’43” Ocosingo, Frontera Corozal, Reserva Comunal Sierra de la Cojolita 16°45’12” 91°01’12.1” Ocosingo, Frontera Corozal, Sierra el Tornillo 16°47’20” 90°51’19” Ocozocoautla 16°45’43” 93°22’30” Presa Ocuilapa 16°00’43” 93°40’18” Presa Malpaso 17°10’00” 93°36’35” Río Catazajá 17°44”10’ 92°01’08” Río Huixtla 15°06’20” 92°28’37”

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Sabana de San Quintín NA NA Soconusco 15°19’00” 92°43’59” Tapachula 14°54’29” 92°15’38” Tapachula, Volcán Tacaná, Finca Milán 14°54’00” 92°16’59” CHIHUAHUA 4.8 km N Chuhuichupa 29°39’25” 108°22’54” 10 Km del Laboratorio del Desierto, Reserva de la Biósfera Mapimí 25°50’17” 103°57’46” Barranca del Río Guachochic NA NA Carretera 16 desde Villa Aldama hasta el Pastor NA NA Meadow Valley NA NA COAHUILA 8 Km al Sur de Emiliano Zapata 25°29’15” 102°56’50” Cuatro Ciénagas 26°59’00” 102°05’15” Mina San Isidro NA NA San Pedro de las Colonias, Santa Eulalia 25°41’56” 103°06’56” COLIMA Colima 19°14’35” 103°43’50” Coquimatlán 19°12’40” 103°48’43” Isla Socorro (de las Islas Revillagigedo) 18°45’00” 110°58’00” Laguna de Amela 18°50’07” 103°45’55” Manzanillo 19°04’54” 104°19’31” Río Armería 18°56’00” 103°56’30” DISTRITO FEDERAL Azcapotzalco 19°28’50” 99°10’46” Barranca del Muerto 19°21’44” 99°12’33” Cerro del Ajusco 19°13’34” 99°16’02” Chapultepec NA NA Contreras 19°18’35” 99°13’43” Coyoacán 19°19’40” 99°09’09” Desierto de los Leones 19°18’03” 99°18’35” Lago de Xochimilco 19°15’34” 99°04’35” Lomas de Chapultepec 19°25’07” 99°11’27” Monte Alegre (Ajusco) 19°13’29” 99°16’00” Pedregal de San Angel NA NA San Andrés Totoltepec 19°15’07” 99°10’16” San Angel 19°20’40” 99°11’18” SE limitando con los estados de México y Morelos, 8 km SW del km 31 NA NA carretera Xochimilco-Oaxtepec Valle de la Cantimplora, Ajusco 19°12’26” 99°16’34” DURANGO 1.6 km W de Buenos Aires (53 km W de El Salto) sobre la carretera 40 NA NA 16 km NNW Pedriceña 25°15’13.32” 103°50’40.2” 23.5 km SW de Buenos Aires (75 km W de El Salto) NA NA 3.5 Km W de la Cd. de Durango 24°11’26” 104°42’14”

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64.6 km W de El Salto 23°46’00” 105°22’00” Durango 24°49’59” 104°49’59” ESTADO DE MÉXICO Calacoaya 19°3159 99°1600 Capulhuac 19°11’32” 99°27’31” Ciénaga de Lerma 19°12’24” 99°30’47” Criadero de San Cayetano NA NA El Mapa, close to the city of Toluca 19°20’00” 99°40’00” La Marquesa 19°17’50” 99°22’15” Lago de Texcoco 19°30’30” 98°53’19” Lagunas de Zempoala, Ojotongo 19°03’00” 99°18’42” Laguna de Zumpango 19°47°49” 99°05°57” Llano Grande 19°20’20” 98°43’14” Nevado de Toluca NA NA Nopaltepec 19°46’55” 98°42’45” Ocuilán 99°23’25” 18°57’16” Río Frío 19°21’0” 98°40’0” Salazar 19°18’13” 99°23’15” San José El Toto 18°59’23” 99°21’49” San Juan Teotihuacán 19°40’59” 98°52’00” San Pedro Tlaltizapán 19°12’05” 99°30’16” San Pedro Tultepec 19°15’50” 99°30’22” Tejupilco 18°54’00” 100°09’00” Tenancingo 18°57’17” 99°35’15” Tenango del Aire NA NA Texcalyacac 19°07’15” 99°29’45” Zentlalpan NA NA GUANAJUATO Acámbaro 20°01’30” 100°43’10” Cañada de la Iglesia NA NA Laguna de Yuriria 20°15’30” 101°06’25” Picacho del Carmen, San José Iturbide 20°59’52” 100°23’15” Río Lerdo 20°23’00” 101°10’05” Valle de Santiago 20°23’50” 101°11’20” GUERRERO 1 km N Atzcala 17° 58' 52'' 99° 39'48'' 2 km N, 8.5 km E Petacalco 17°59’40” 102°06’29” 2.5 km N Atzcala 17º 59’ 10” 99º 39’ 59” 3.5 km N, 7.5 km E Petacalco 18°00’23” 102°06’21” 4 km NE Colotlipa 17°26’06.4” 99°08’22.2” 4.8 km N, 2.6 km E Petacalco 18°01’15” 102°06’08” 9 km SE Coyuca NA NA Acahuizotla 17°21’38” 99°28’02” Acapulco 16°52’16” 99°53’52”

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Acapulco, 2.5 km W Puerto Marquez NA NA Acapulco, 300 m NE Barra Vieja 16°41’30” 99°37’25” Acapulco, Barra Vieja 16°41’24” 99°37’32” Acapulco, Cumbres de Llano Largo 16°49’45” 99°50’23” Acapulco, Icacos NA NA Acapulco, Isla la Roqueta 16°49’23” 99°54’29” Acapulco, Laguna de Tres Palos 16°47’47” 99°44’30” Arcelia 18°14’33” 100°16’53” Argelia 18°16’59” 100°16’00” Aserradero de Omiltemi, 25 km NW from Chilpancingo 19°08’15.5” 99°47’21.7” Cacahuamilpa 18°37’49” 99°30’19” Carretera 200, Guerrero-Oaxaca 16°33’52” 98°57’59” Carretera Acapulco-Aeropuerto 16°47’45” 99°48’35” Carretera Nueva Dehli-La Guitarra 17°29’22” 100°11’46” Carretera San Juan de los Llanos-Ometepec 16°39’29” 98°28’09” Carretera San Luis Acatlán-Tlapa de Comonford (Sierra de Malinaltepec) 17°06’35” 98°42’40” Carretera Vallecitos-El Durazno 17°47’05” 101°07’19” Carretera Vallecitos-Zihuaquio 18°02’37” 101°18’03” Chilpancingo 17°32’15” 99°30’38” Grutas de Juxtlahuaca 19° 26´ 19” 99° 09´ 34” Hueyatl 17° 53' 38'' 99° 07' 28'' Ichcateopan 17°37’59” 98°31’00” *Iguala 18°20’28” 99°32’43” Isla Ixtapa 17°40’55” 101°38’40” Ixtapa 17°39’25” 101°35’35” José Azueta, colonia Aeropuerto 17°37’17” 101°27’37” Mezcala 17°56’02” 99°36 ’05 ” Omiltemi 17°33’24” 99°41’ 08” Petacalco 17°58’35” 102°06’29” Petatlán NA NA Playa Larga 5.3 km N., 9.6 km W Zihuatanejo 17°37’22” 101°30’53” Puente de Ixtla 17°28’32” 98°59’56” Puerto de Acapulco 16°49’21” 99°52’55” Puerto del Gallo 17°28’23” 100°10’23” Río Balsas 18°00’04” 102°10’05” Río Tecpan 17°14' 08" 100° 37' 36" San Luis de la Loma (Tecpan) 17° 16’ 19” 100° 53’ 28” San Marcos NA NA San Pedro Las Playas (Laguna de Tres Palos) 16°47’47” 99°44’30” San Vicente 17°20’03” 100°10’10” Sierra Madre del Sur, Puerto del Bálsamo (Carretera San Antonio-Ciudad 17°58’43” 101°12’51” Altamirano). Tlacoachistlahuaca, Ometepec NA NA Tecpan de Galeana 17°13’15” 100°37’47”

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Taxco 18°33’00” 99°36’00” Tierra Colorada NA NA Tixtla 17°39’56” 99°23’55” Xonacatepec, Tlapa NA NA Zihuatanejo 17°37’41” 101°32’30” Zumpango 17°39’07” 99°31’35” HIDALGO 1 mi S of Santa Mónica NA NA Actopan 20°16’05” 98°55’53” Barranca de Metztitlán 98°23’00” 98°57’00” Durango 20°54’00” 99°14’00” El Chico, Cerro Las Ventanas NA NA Huejutla 21°08’25” 98°25’12” Mixquiahuala 20°14’00” 99°13’00” Pisaflores 21°11’39” 99°00’23” Tasquillo 20°33’28” 99°28’59” Zacualtipan 20°38’25” 98°40’18” JALISCO 1.6 km N de Encarnación NA NA 8 km W de Ameca 20°31’57” 104°05’32” 14.5 km W Atenquique 19°31’52” 103°33’56” 17 km NW Mascota 20°37’58” 104°53’42” 21 km W Atenquique 19°31’48” 103°37’33” 24 km W Atenquique 19°31’56” 103°39’20” 27 km W Atenquique 19°31’52” 103°40’47” Atenquique 19°31’00” 103°26’00” Bahía de Chamela 19°33’15” 105°06’45” Barra de Navidad 19°12’15” 104°40’58” Chamela 19°31’36” 105°04’23” Chamela, Estación de Biología, UNAM 19°28’40” 105°00’32” Carretera Melaque-Autlán 19°24’32” 104°40’24” Carretera Puerto Vallarta-Las Palmas 20°45’15” 105°09’27” Emiliano Zapata 19°23’07” 104°57’30” Guadalajara 20°40’35” 103°20’46” La cumba les Arrastrados NA NA Lago de Chapala 20°17’34” 103°08’00” Laguna de Chapala 20°15’05” 103°10’20” Las Palmas 20°82’85” 105°00’37” Playa Santa Rosa, 7 km N 6.9 km W Emiliano Zapata NA NA Playa la Gloria, Playón de Mismaloya 19°50’-19°59’ 105°22’-105°29’ Puerto los Mazos (Sierra de Manantlán) 19°41’18” 104°23’43” Rio Cuale (Puerto Vallarta) 20°35’48” 105°15’00” Río Magdalena 20°53’31” 104°01’49” Río Verde (Santiago) 21°49’30” 101°46’05”

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Tequila 20°53’10” 103°50’54” Tomatlán 19°56’27” 105°14’55” Volcán del Fuego NA NA Volcán Nevado de Colima NA NA MICHOACá N 1km SE Chuta 18°02’23” 102°32’58” 38 millas S of Nueva Italia 18°41’16.8” 102°05’33.4” 5 km N, 8 km W Tupitina NA NA Apatzingan 19°04’59” 102°21’00” Aquila, La punta, a 1.2 km SE Campamento el farito 18°05’31” 102°48’34” Bahía de San Telmo 18°36’55” 103°42’08” Boca de Apiza 18°40’50” 103°44’20” Cabeza Negra 18°39’09” 103°43’03” Calabazas NA NA Caleta de Campos 18°04’24” 102°45’23” Carretera 120, entre Tepalcatepec-Coalcoman 19°04’20” 102°54’11” Carretera 120, entre Tepalcatepec-Apatzingan 19°12’50” 102°48’11” Cutzaróndiro 19°10’59” 101°30’13” El Farito 8 km NW de Caleta de Campos 18°05’58” 102°49’02” Lago de Cuitzeo 19°57’32” 101°34’31” Lago de Pátzcuaro 19°36’05” 101°39’13” Lago de Zacapu 19°49’35” 101°47’10” Lago de Zirahuén 19°26’37” 101°44’05” Los Azufres, a unos 30 km de Ciudad Hidalgo NA NA Manantiales de Cointzio 19°36’42” 101°15’29” Mil Cumbres 19°37’12” 100°46’22” Nexpa 18°05’54” 102°47’01” La Orilla 17°59’43” 102°13’37” Playa Azul 17°59’08’ 102°20’16” San José Lagunillas NA NA San Juanico 19°50’13” 102°39’45” Tancítaro 19°20’00” 102°22’00” Temascaltepec NA NA Uruapan 19°25’43” 102°04’23” Zirahuén 19°25’59” 101°43’59” MORELOS Acatlipa 18°49’00” 99°13’59” Alpuyeca 18°44’25” 99°15’22” Cacahuamilpa NA NA Casasano 18°50’57” 98°57’50” Cerro del Tepozteco (Tepoztlán) 18°59’38” 99°07’00” Cuatetelco NA NA Cuautla 18°48’26” 98°57’00” Huajintlán 18°36’40” 99°25’24”

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El Limón NA NA Km 60 de la carretera México-Cuernavaca NA NA Lagunas de Zempoala NA NA Tehuixtla 18°33’34” 99°16’15” Tetelcingo 18°52’13” 98°55’51” Tlalnepantla, 1 km N Tlalnepantla 19°00’56” 98°59’48” Tlalnepantla, carr. Xochimilco-Oaxtepec km 47, Felipe Neri NA NA NAYARIT 12.5 mi E San Blas 21°32’13.6” 105°06’37.8” 14 mi E San Blas 21°32’13.6” 105°04’57” 15 km N de Acaponeta 22°37’33” 105°21’28” 15 mi N Tepic 21°44’03” 104°53’43” 20 mi S of Acaponeta 22°10’56.6” 105°21’31.3” 35.7 km SE de Tepic 21°17’24” 104°40’01” 4.2 km E de San Blas 21°32’21” 105°14’51” Carretera Tepic-Aguamilpa 21°45’22” 104°51’40” Compostela, Zacualpan 21°15’00” 105°10’00” Islas Marías 21°25’00” 106°28’00” Islas Marías, María Magdalena NA NA Isla María Madre NA NA Piedra Ancha o Canastillas 22°26’27” 105°22’24” Presa Aguamilpa 21°46’42” 104°55’36” Puente Río Ameca NA NA Río Grande (Villa Hidalgo) 21°45’00” 105°16’25” Santiago Ixcuintla 21°48’40” 105°12’23” Tecuala 22°23’54” 105°26’19” Tepic 21 30 58 104°53’38” Tuxpan 21°56’59” 105°17’57” NUEVO LEó N Apodaca NA NA Arroyo Ayancual 25°38’36” 99°45’00” Arroyo San Roque 25°37’00” 100°03’00” Cañón de la Boca (Cadereyta) 25°23’05” 100°18’40” Ciénega de Flores 25°57’11” 100°09’59” China 25°22’31” 98°46°36” Fábrica Borward 25°25’30” 100°08’15” Gruta del Carrizal NA NA La Laguna (Higueras) 25°56’00” 100°55’00” La Presita Villarreal (El Carmen) 25°55’63” 100°21’14” Laguna de Salinillas 27°26’15” 100°23’00” Laguna Montford 25°42’00” 99°54’52” Lampazos 27°02’00” 100°31’00” Marin 25°52’00” 100°03’00” Monterrey 25°41’42” 100°18’14”

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Paraje de Los Osos (Villa de Santiago) 25°24’50” 100°09’05” Parque Ecológico Chipinque 25°34’50” 100°21’55” Presa Agualeguas 26°17’08” 99°33’45” Presa El Cemento NA NA Presa Rodrígo Gómez 26°13’47” 98°56’22” Rancho El Puerto 26°00’25” 100°07’35” Río La Silla 25°40’32” 100°10’12” Río Pesqueria 25°46’50” 100°02’48” Río Pesqueria (Zuazua) 25°53’31” 100°04’47” Río Sabinas 26°30’05” 100°10’00” Río Salinas 25°56’48” 100°09’59” Río Salinas ( El Carmen) 25°55’68’ 100°21’30” Río San Juan 25°32’25” 99°50’16” San Nicolás de los Garza 25°45’05” 100°17’05” Santa Catarina 25°34’57” 100°25’17” Santa Catarina, Casablanca 25°40’59” 100°28’00” Villaldama 26°30’00” 100°26’00” OAXACA 1.5 km SW Bajos de Coyula 15°41’43” 96°18’56” 2 km N Bajos de Coyula 15°43’21” 96°18’22” 2.5 km S, 1 km E Bajos de Coyula 15°40’59” 96°18’22” Sierra Mixe, a 300 m W de Totontepec NA NA 25 km NW Puerto Escondido 16°01’02” 97°13’59” 38 mi West of Tehuantepec 16°18’47.2” 95°47’16.1” 7 km NE of Zanacatepec 16°28’15” 94°22’52” 9.6 km N, 9.6 km E, San Pedro Tapanatepec 15°47’26” 93°18’39” Arroyo del Cerro Naranjo, Cerca de “Los Mangos” 16° 41’16” 95°02’09” Asunción Ixtaltepec, Nizanda 16° 39’27” 95°00’38” Bahias de Huatulco 15°50’37” 96°19’36” Bajos de Coyula 15°42’15” 96°18’22” Barra de la Cruz 15°50’23” 95°58’14” Cafetal Mirador NA NA Camino a la Cuchara, Soyaltepec 18°12’42” 96°29’2” Carr. Oaxaca-Pochutla km 178, 3 km al N de Jalatenco, Tierra Blanca (Los NA NA Gamitos) Carretera 200 (Pinotepa-Puerto Escondido) km 109, Rancho Lu, 30 km W 15°56’57” 97°20’07” Puerto Escondido Carretera Oaxaca-Pochutla Km 222 Rancho Comalá NA NA Cerro de la Garza (Santa María Mixtequilla) NA NA Cerro San Felipe 17°13’44” 96°43’37” Cd. Ixtepec, cerca de Nizanda camino al Cerro de Tilo, después de Paso de la 16º40’20” 95º01’55” Montaña Cd. Ixtepec, parte trasera de la pedrera 16°40’45” 95°00’59” Cd. Ixtepec 100 m antes de llegar a paso de la montaña 16°40’24” 95°01’59”

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Cd. Ixtepec, arroyo del cerro Naranjo, cerca de “Los Mangos” 16°41’16” 95°02’09” Cuicatlán (San Juan Bautista Cuicatlán) 17°47’55” 96°57’35” Cuenca del Papaloapan (Temascal-Tlacotalpan) Huajuapan de León 17°48’17” 97°46’18” Huitzo 17°18’59” 96°50’25” Istmo de Tehuantepec NA NA Jalahui NA NA Juchitán 16°25’14” 95°00’36” Lagunas de Chacahua 15°41’28” 96°37’05” Magdalena Tequisistlán 16°23’57” 95°36’12” Matias Romero 16°52’20” 95°02’30” Mitla 16°55’00” 96°20’00” NW de Totoloapan 16°42’28” 96°19’42” Oscuranos NA NA Paso Canoa 18°00’32” 96°14’24” Playa La Escobilla 15°55’04” 96°58’42” Playa Mazunte 15°39’41” 96°33’13” Presa Cerro de Oro 16°27’21” 95°14’10” Presa de Temascal 18°13’00” 96°25’00” Pueblo Camarón NA NA Puerto Angel 15°39’35” 96°29’45” Putla Villa de Guerrero 17°01’33” 97°55’45” Río Usila NA NA Río Verde 16°02’33” 97°45’02” Ruinas de Guiengola NA NA San Blas Atempa 16°19’35” 95°13’32” San Pedro Amuzgos 16°39’10” 98°05’22” San Pedro Huamelula 16°01’30” 95°39’55” Santiago Pinotepa Nacional, Casa de Chapingo NA NA Santiago Pinotepa Nacional, entre Rancho El Frio y Corraleros NA NA Santiago Pinotepa Nacional, Rancho El Frio NA NA Santiago Pinotepa Nacional 16°20’30” 98°03’08” Salina Cruz 16°10’22” 95°11’45” San Jerónimo NA NA San Juan Lachao, Río Sal, carr 131 (Oaxaca-Puerto Escondido) km 178.5 16°10’21” 97°06’09” San Mateo del Mar 16°12’36” 94°58’54” San Pedro Mixtepec, Las Negras 15°56’45” 97°11’08” San Pedro Pochutla 15°44’40” 96°27’55” San Pedro Tapanatepec 16°22’01” 94°11’40” San Pedro Tututepec, La Luz NA NA Santa María Tonameca, Barra del Potrero 15°44’03” 96°45’45” Santa María Chimalapa 16°54’23” 94°40’59” Santiago Quiotepec (N Cuicatlán) 17° 51’ 15” 96° 59’05” Santiago Tamazola 17°40’10” 98°13’35”

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Santo Domingo Zanatepec 16°28’45” 94°21’06” Sierra Mixe, 8.6 km W Totontepec 17°11’40” 96°03’48” Sierra Mixteca, a 300 m W de Totontepec 15°42’15” 96°18’32” Soyaltepec, Tuxtepec 18°12’42” 96°29’2” Tehuantepec, Santa Lucía Tehuantepec (Santo Domingo Tehuantepec) 16°19’28” 95°14’20” Tehuantepec, Las Majadas 16°19’28” 95°14’20” Teotitlán Tepenzacoalco NA NA Tuxtepec (San Juan Bautista Tuxtepec) 18°05’10” 96°07’26” Valle Nacional 17°47’00” 96°19’00” PUEBLA Apizaco 19°11’00” 97°18’00” Cacaloapan 18°34’00”' 97°36’00” Caltepec 18°10’53” 97°28’45” Cuetzalan de Progreso 20°06’54” 97°28’58” Estación de Microondas, desviación a Sierra Negra, carretera Coyomeapan- 18°17’52” 97°03’57” Couitlán Huachinango 20°10’00” 98°03’05” Izúcar de Matamoros 18°35’31” 98°27’49” Lago La Mina Preciosa 19°22’03” 97°22’03” Laguna Atexcac NA NA Laguna de Alchichica 19°24’38” 97°24’38” Laguna Quechulac 19°22’27” 97°21’14” Sierra Negra 18°19’37” 99°00’25” Tepanco de López 19°20’20” 98°43’14” Tonahuixtla 18°12’00” 97°53’35” Volcán de Orizaba 18°57’30” 97°19’36” Xuchil NA NA QUERé TARO Carretera 120, entre El Lobo-La Vuelta 21°17’25” 99°08’02” Jalpan 21°12’33” 99°28’31” Neblinas 21°16’10” 99°03’23” QUINTANA ROO 1.1 km N Carretera 307 a Cobá NA NA 4 km NNE de Felipe Carrillo Puerto 19°35’30” 88°00’49” 6.7-8 km W Puerto Juárez NA NA Chetumal 18°30’13” 88°18’19” Cozumel 20°24’10” 86°55’40” El Corzo, 12.9 km N, 3.5 km W Cancún 21°16’59” 86°50’10” Isla Mujeres 21°13’00” 86°43’00” NW Chetumal 18°30’10” 88°15’32” Pueblo Nuevo X-Can NA NA SAN LUIS POTOSí

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Cueva de Potrerillos, Ahuacatlán 21°19’14” 99°03’01” Km 36 de la carretera San Luis-Río Verde Sierra de Alvarez NA NA Patitla, a 5 km N de Tamazunchale 21°18’27” 98°47’33” Río Moctezuma, 1.5 km S de Tamazunchale NA NA Río Valles NA NA Sierra de San Miguelito NA NA Tanque de los caballos, km 32 carr. San Luis-Tampico NA NA SINALOA 1 km NE de Santa Lucía NA NA 11 mi S Guamuchil NA NA 2.2 km NE de Santa Lucía NA NA 4.2 km NE de Santa Lucía NA NA 4.6 km W de Santa Lucía NA NA 6.4 km SE de Santa Lucía NA NA 7.5 mi E Concordia, Carretera 40 23°17’15” 106°11’36” 8.1 km SW de Santa Lucía NA NA Carretera 15, Palmillas-Escuinapa NA NA Escuinapa 22°50’02” 105°46’42” Playa Ceuta 23°52’50” 106°57’05” Topolobampo 25°37’47” 109°03’20” SONORA 1-9 mi E Kino 28°57’36” 110°50’46” 10 km S Hermosillo 29°00’37” 110°58’04” 10 mi E of El Oasis 31°56’34.4” 113°02’15” 11 mi E de Imuris 30°46’27” 110°42’14” 13 km NW Cananea 31°04’04” 110°24’01” 13 km SE Alamos 26°56’35” 108°50’17” 13 km SSE de Alamos 26°56’35” 108°50’17” 20 miles E from Navojoa 27°04’46.9” 109°09’27” 30-40 mi SE San Luis Río Colorado 32°10’18” 114°27’16” 36 km N El Oasis NA NA 4 km W de Carbo 29°41’03” 110°59’10” 42 km E de San Luis NA NA 48-51 mi NW Sonoyta NA NA 5 mi NW de Cananea 31°01’59” 110°22’00” 51 km S de Santa Ana 30°05’27” 111°07’26” 55 km S Hermosillo 28°35’57” 110°57’55” 8 km NE de Cananea 31°01’54” 110°16’01” 8 mi S de Alamos 26°54’18” 108°55’18” 9-11 mi NW Guaymas NA NA Alamos 27°01’24” 108°55’56” Bahía de San Carlos NA NA Baviacora 29°43’00” 110°09’00” Cananea NA NA

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Choquincahui 26°59’00” 108°41’00” En el camino entre la Aduana y Minas Nuevas NA NA La Aduana NA NA Minas Nuevas NA NA Río Cuchujaqui 27°00’00” 108°59’45” Road to Alamos NA NA Yecora 28°22’45” 108°55’24” TABASCO 24 km S from Villahermosa 17°47’10” 92°55’18.5” Campo SEN NA NA Cárdenas 18°00’00” 93°22’32” Centla, carr. 180 (Villahermosa-Frontera) desv. a la Reserva Centla 18°30’51” 92° 38’53” Centla, El Espino NA NA Centro Acuícola de Teapa 17°32’49” 92°57’03” Centro, Villahermosa 17°59’26” 92°55’41” Comalcalco 18°14’58” 93°12’53” Frontera 18°31’56” 92°39’05” Laguna El Espino 18°14’49” 95°50’00” Laguna Emiliano Zapata 17°44’32” 91°46’30” Nacajuca NA NA Nacajuca, Base Militar campo SEN 18°18’00” 92°55’00” Pozo Gualas NA NA Ranchería Benito Juárez 18°25’26” 92°48’20” Rancho El Colorado (Jalapa) 17°43’08” 92°48’37” Reforma 2o junto a Laguna Pomposu 18°20’10” 93°02’29” Río de Chilapa 18°14’35” 92°40’01” Río Mezcalapa 17°56’55” 93°19’05” Río Teapa 17°32’39” 92°57’04” Tenosique 17°28’59” 91°25’59” Universidad Juárez Autónoma de Tabasco 17°59’22” 92°58’24” Villahermosa 18°00’00” 92°53’12” TAMAULIPAS 22.3 Km SW Río San Marcos NA NA 49.6 km N González (Hacienda Acuña) 23°16’28.9” 98°25’46.6” Arroyo La Coma (Rancho Nuevo) 23°11’00” 97°47’00” Camino La Ventana NA NA Ciudad Madero 22°16’35” 97°49’53” Ciudad Madero, Refineria Francisco I. Madero 22°17’01” 97°48’41” Ejido San Pedrito NA NA El Barco NA NA El Mante NA NA La Joya de Salas NA NA Río Soto la Marina 23°46’52” 98°12’25” Río Tamesi 22°21’02” 97°59’25”

152 · Zootaxa 1904 © 2008 Magnolia Press PAREDES-LEÓN ET AL. TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited.

TLAXCALA Tlaxcala 19°18’59” 98°14’19” VERACRUZ Agua Fina NA NA Boca del Río 19°05’54” 96°06’15” Camino a la Barra de Sontecomapa 18°33’31” 94°59’15” Catemaco 18°24’16” 95°04’52” Catemaco, camino a mono blanco NA NA Cerca de Perote NA NA Ciudad Alemán, Cosamaloapan 18°11’15” 96°05’40” Corral de los Caminos a 22 km N de Acayucan 18°08’52” 94°54’19” Cosamaloapan 18°22’26” 95°47’20” Cotaxtla 18°50’03” 93°23’50” Cuautlalpan 18°52’00” 97°02’00” Ejido Lázaro Cárdenas 18°36’13” 95°06’10” El Bastonal (Volcán Santa Marta) FALTA El Morro 18°32’52” 94°58’20” Estación de Biología Los Tuxtlas 18°37’17” 95°05’35” Estero Tamacuil (Ozulama) 21°28’40” 97°56’03” Km 6 carr. Catemaco-Coatzacoalcos (Hueyapan) NA NA La Victoria (Lago de Catemaco) 18°22’24” 95°07’44” Laguna de Alvarado 18°47’05” 95°49’35” Laguna El Zacatal 18°32’55” 95°16’17” Laguna Encantada NA NA Laguna Escondida 18°35’39” 95°05’15” Laguna La Mancha 19°35’18” 96°23’22” Laguna Nixtamalapan 18°25’43” 95°06’04” Lago de Catemaco 18°24’16” 95°04’52” Minatitlán 18°00’54” 94°29’33” Tonalá NA NA Omealca 18°45’00” 96°47’03” Potrero Viejo 18°25’58 95°22’54” Puerto de Veracruz 19°11’42” 96°07’07” Río Blanco 18°45’01” 95°54’00” Río Colorado, Puerto Xochiapa 17°39’00” 95°44’10” Río Cuetzalapan 18°22’07” 95°00’23” Saladero NA NA Salto de Eyipantla 18°23’20” 95°15’20” Santa Ana, Alto Lucero 19°53’22” 96°30’26” San Antonio Ixtatetla (Huayacocotla) 20°41’34” 98°23’30” San Juan Evangelista 17°53’03” 95°08’38” Sontecomapan 18°30’15” 95°02’08” Tecolapa NA NA Tierra Blanca 18°26’52” 96°21’38”

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Tierra Blanca, Camino al Río Amapa NA NA Tlacotalpan 18°37’00” 95°39’06” Tlilapan cerca de Orizaba 18°48’20” 97°05’46” Tonalá 18°12’27” 94°08’20” Xalapa 19°32’29” 95°55’18” YUCATá N 1.4 km S 7.5 km W Chixchulub Puerto NA NA 4.61 km N 2.9 km E Calotmul 21°00’38” 88°11’07” 6 km N 3 km E Celestun 20°5459” 90°24’04” Aguada Xpoc 20°35’12” 89°19’00’ Camino a San Roque 20°17’45” 89°20’40” Carretera Sierra Papacal-Chuburná, entre Sierra Papacal y Estero Yucalpeten 21°11’53” 89°49’20” Carretera Río Lagartos-San Felipe 21°33’57” 88°10’42” Carretera Valladolid-México 180D 20°41’06” 88°49’16” Carretera Yaxcabá-Tahdzibichén 20°30’24” 88°49’41” Celestún 20°51’33” 90°24’00” Cenote Ixin-há 20°37’14” 89°06’40” Cenote Xtoloc 20°41’39” 88°34’39” Chichén-Itzá 20°40’30” 88°34’21” Cueva Kaua 20°37’00” 88°25’00” Cueva Loltun (Oxkutzcab) 20°17’46” 89°25’40” Cueva Góngora (Oxkutzcab) 20°17’46” 89°25’40” Cueva Puz (Oxkutzcab) 20°17’46” 89°25’40” Cueva Ziz (Oxkutzcab) 20°17’30” 89°25’00” Estuario Celestún 20°52’15” 90°22’07” Mérida 20°58’04” 89°37’18” Mucuyche 20°37’20” 89°36’15” Oxkutzcab 20°18’10” 89°25’06” Panasa (sic Panaba) 21°17’47” 88°16’14” Pisté 20°41’53” 88°35’19” Ría Celestún Special Biosphere Reserve 20°51’00” 90°23’00” San Nicolas, Tizimin 21°27’25” 87°43’03” Santa Rosa 21°04’36” 88°28’10” ZACATECAS Laguna El Mortero 23°28’13” 103°55’32”

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Taxonomic index

“Filaria” 56 Abbreviata ranae 62, 93 Abbreviata terrapenis 62, 104 Acanthocephala 36 Acanthochasmus loossi 6 Acanthostomidae 6 Acanthostomum 6 Acanthostomum americanum 6, 118 Acanthostomum caballeroi 7 Acanthostomum megacetabulum 7 Acanthostomum nuevoleonensis 7 Acanthostomum scyphocephalum 6, 7 Acanthostomum sp. 6, 7 Acanthostomum unami 6 Acari 70 Acomatacarus arizonensis 81, 82, 102, 104–107 Acuarioidea gen. sp. 38, 104 Adenogaster serialis 23, 114 Agamascaris sp. 39, 112 Alaeuris caballeroi 57, 118 Alaeuris gopheri gopheri 57, 118 Alaeuris gopheri pudica 57, 118 Alaeuris hirsutus 57, 101 Alaeuris kinsellai kinsellai 57, 118 Alaeuris kinsellai sonorae 57, 118 Alaeuris longicollis 58, 118 Alaeuris mazzottii 58, 118 Alaeuris mexicana 58, 101 Alaeuris paramazzottii 58, 118 Alaria sp. 12, 89 Amblyomma boneti 73 Amblyomma cajennense 71, 100, 114, 120 Amblyomma castanedai 73 Amblyomma dissimile 71, 86, 87, 89, 100–102, 108, 111, 113–117, 120 Amblyomma elaphense 72, 108 Amblyomma rotundatum 72, 89, 101–102, 111, 120 Amblyomma sabanerae 72, 97, 115, 116, 120 Amblyomma scutatum 73, 89, 100, 101, 120 Ancylostomatidae 39 Angiostomatidae 39 Angiostoma lamotheargumedoi 39, 97 Anisakidae 39 Annelida 69 Anoplocephalidae 31 Apharyngostrigea sp. 26, 92 Aplectana 43 Aplectana hamatospicula 42, 89 Aplectana hoffmanni 43 Aplectana incerta 42, 86–88, 90, 92, 95 Aplectana itzocanensis 43, 87–90, 92, 96 Aplectana mexicana 43, 44, 97 Aplectana sp. 43, 87, 88, 91, 94, 95 Aplectana waltoni 43, 44, 88 Argasidae 70 Argasidae gen. sp. 70, 101 Argulidae 85

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Arguloida 85 Argulus ambystoma 85, 96 Arhythmorhynchus brevis 38 Arthropoda 4, 70 Ascarididae 39 Ascaridiidae 40 Ascaridia sp. 40, 108 Ascaridoidea 40 Ascaridoidea gen. sp. 40, 88, 95 Ascarops sp. 68, 90, 91, 101, 104 Atractidae 41 Atractis impura 41, 116–118 Atractis penneri 41 Atractis scelopori 41 Atrophecaecum 7 Batrachotaenia 35 Bitegmen gerrhonoti 33, 107 Bothriocephalidae 33 Bothriocephalus acheilognathi 33, 96, 112 Brachycoeliidae 7 Brachycoelium salamandrae 7, 98 Branchiura 85 Caballerodiscus 9 Caballerodiscus resupinatus 9, 114 Caballerodiscus tabascensis 9, 114, 115, 117 Caimanicola 7 Calycodes anthos 8, 114 Calycodidae 8 Camallanidae 42 Camallanus magnorugosus 42 Camallanus parvus 42 Camallanus scabrae 42 Camallanus sp. 42, 115 Capillaria xochimilcensis 68, 111 Capillariinae gen. sp. 69, 111 Carettacola 26 Carettacola stunkardi 26, 114 Carios talaje 70, 99, 100 Catadiscus marinholutzi 11, 109–111 Catadiscus propinquus 12, 95 Catadiscus rodriguezi 12, 92, 95 Centrorhynchidae 36 Centrorhynchus sp. 36, 86–88, 90, 91, 95, 99, 101, 103 Cephalobaenida 85 Cephalobaenidae 85 Cephalogonimidae Cephalogonimus americanus 8, 88, 91–96 Cephalogonimus robustus 8, 93 Cephalogonimus sp. 9 Cephalogonimus vesicaudus 9, 115, 118 Cercorchis dissimilis 28 Cercorchis membranaceus 28 Cercorchis patonianus 29 Cestoidea 31 Cetiosaccus galapagensis 24, 114 Chabaudgolvania 50 Chabaudgolvania elongata 50, 96, 97 Chabaudgolvania sp. 51, 91 Chandlerella striata 54

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Cheloniodiplostomum 25 Cheloniodiplostomum delillei 25, 110, 114, 116 Cheloniodiplostomum sp. 25, 116 Cheloniotrema tropicum 21, 117 Choanophorus rovirosai 24, 115 Choledocystus hepaticus 18, 88 Choledocystus intermedius 18 Cladorchiidae 9 Clinostomidae 10 Clinostomum attenuatum 10, 88, 92 Clinostomum complanatum 11, 89 Clinostomum marginatum 11, 110 Clinostomum sp. 10, 89, 91 Contracaecum sp. 39, 88, 92. 93, 95, 111, 112, 119 Cosmocerca acanthurum 44, 97 Cosmocerca parva 44, 95 Cosmocerca podicipinus 44, 86, 90, 92 Cosmocerca sp. 44, 87–89, 91, 95 Cosmocercella anothecae 44, 89 Cosmocercella haberi 44, 89 Cosmocercidae 42 Cosmocercoides dukae 45, 96 Cosmocercoides sp. 45, 87–89, 95 Cosmocercoides variabilis 45, 92, 98, Crepidobothrium brevis 34 Crepidobothrium gerrardi 34, 108 Crocodilicola pseudostoma 25, 119 Crustacea 85 Cruzia mexicana 51, 98, 116, 116, 132 Cruzia morleyi 51, 88 Cruzia tropidodipsi 51, 112 Cyathocotylidae 11 Cylindrocorporidae 45 Cylindrotaenia americana 33, 87, 90, 92, 95 Cymatocarpus solearis 7, 8, 114 Cymatocarpus undulatus 8 Cyrtosomum penneri 41, 99, 101–103, 105, 106, Cyrtosomum readi 41 Cyrtosomum scelopori 41, 98, 100–102 Cystidicolidae 46 Dadaytrema sphaerorchidum 10 Dasymetra srivastavai 21, 110 Dermatemytrema trifoliatum 12, 115 Derogenidae 11 Diaphanocephalidae 46 Diaschistorchis pandus 24, 114 Dibulbiger 51 Dibulbiger longispiculis 51 Dicrocoeliidae 11 Dictyangium chelydrae 20, 115 Diestecostoma mexicanum 69, 86, 96, 97 Diestecostomatidae 69 Diochetos 32 Diochetos phrynosomatis 32 Dioctophymatidae 46, Diphyllobothriidae 33 Diphyllobothriidae gen. sp. 33, 92 Diplodiscidae 11

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Diplostomidae 12 Diplostomidae gen. sp. 12, 92 Diplostomum (Tylodelphys) 13 Distoichometra bufonis 33, 87–89, 94 Dracunculidae 47 Dracunculus ophidensis 47, 112 Dujardinascaris antipini 40 Dujardinascaris helicina 39, 40, 118, 119 Enodiotrema megachondrus 21, 114 Entomelas campbelli 65, 98 Entomelas floresvillelai 65, 98 Entomelas sp. 65, 98 Euschoengastoides tumidus 79, 104 Eustrongylides sp. 46, 91, 93, 11, 112, 119 Eutrombicula acapulcensis 79, 105, 107 Eutrombicula alfreddugesi 79, 94, 98, 102–111 Eutrombicula bitarsala 81, 98, 103, 107 Falcaustra 50–52 Falcaustra affinis 51, 53, 117 Falcaustra caballeroi 51, 93 Falcaustra chabaudi 52 Falcaustra concinnae 52, 113 Falcaustra elongata 50 Falcaustra inglisi 52, 94 Falcaustra intermedia 52, 117 Falcaustra longispicula 51 Falcaustra lowei 52, 94 Falcaustra mascula 52 Falcaustra mexicana 52, 92, 96, 97, 111 Falcaustra ranae 53, 93, 94 Falcaustra sp. 53, 115, 116 Falcaustra wardi 53, 117 Fibricola sp. 12, 89, 93 Foleyella 54 Foleyellides 54 Foleyellides striatus 54, 92–94 Geckobia bataviensis 74, 99 Geckobia keegani 74, 99 Geckobia leonilae 76, 99, 100, 120 Geckobia sp. 77, 99, 100 Geckobiella texana 77, 98, 99, 101–105 Globocephalus sp. 39, 92 Glossiphoniidae 69 Glypthelmins 18, 20, Glypthelmins brownorumae 18, 91 Glypthelmins californiensis 18–20, 91, 93, 94, Glypthelmins facioi 19, 90, 95 Glypthelmins parva 19, 95 Glypthelmins proximus 20 Glypthelmins quieta 19, 91–94 Glypthelmins tuxtlasensis 19, 20, 91, 95 Glypthelmis sp. 19, 89, 95 Gnathostoma binucleatum 47, 108, 110, 113, 115, 117 Gnathostoma sp. 47, 90–94, 108, 110, 115, 117–119 Gnathostoma turgidum 48, 95, 117 Gnathostomatidae 47 Gongylonema sp. 49, 103 Gongylonematidae 49 Gopheruris aspicula 58, 117, 118

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Gorgoderidae 13 Gorgoderina 14 Gorgoderina attenuata 13, 86, 90–97 Gorgoderina festoni 13, 88, 90, 91 Gorgoderina megalorchis 14, 88, 89 Gorgoderina parvicava 14, 91, 95 Gorgoderina rhyacosiredonis 14, 96 Gorgoderina skarbilovitschi 13 Gorgoderina sp. 13, 89 Gorgoderina tarascae 14, 95 Haematoloechidae 14 Haematoloechus breviplexus 14, 94 Haematoloechus coloradensis 14, 91–93 Haematoloechus complexus 15, 17, 91–96 Haematoloechus danbrooksi 15, 16, 91, 95 Haematoloechus elongatus 15, 93–95 Haematoloechus floedae 15, 91, 95 Haematoloechus illimis 16, 93, 95 Haematoloechus iturbei 16 Haematoloechus longiplexus 16, 90 Haematoloechus macrorchis 16, 93, 94 Haematoloechus medioplexus 15, 16, 87–89, 93, 94 Haematoloechus parcivitellarius 16, 93 Haematoloechus pulcher 17, 93, 96, 97 Haematoloechus sp. 14, 92 Haematoloechus varioplexus 17, 93 Haementeria lopezi 69, 89, 90 Haemoxenicon chelonenecon 26 Haemoxenicon stunkardi 26 Halipegus amhertensis 11 Halipegus eschi 11, 95 Halipegus lermensis 11 Halipegus occidualis 11, 91, 93, 94 Hannemania anurae 83, 86, 89, 91, 93, 94 Hannemania bufonis 83, 87 Hannemania hylae 83, 86, 87, 89, 91, 94, 95 Hannemania mexicana 84, 91, 92 Hannemania monticola 84, 86, 89, 95, 95 Hannemania pelaezi 84, 91 Hannemania saxicola 84, 86 Hapalorhynchus albertoi 26, 117 Hedruridae 49 Hedruris siredonis 49, 92, 96, 97, 117 Heronimidae 17 Heronimus chelydrae 17 Heronimus mollis 17, 116, 117 Herpetodiplostomum caimanicola 25 Herpetodiplostomum delillei 25 Heterakidae 49 Hexametra chamelensis 40, 112 Hexaparuterina mexicana 34 Hexidionis allredi 81, 104, 106, 107 Hexidionis biagii 81, 98, 103 Hexidionis lacerticola 81, 98, 99, 101, 106, 107 Himasomum 24 Hirstiella bakeri 78, 101, 102 Hirstiella otophila 78, 99, 120 Hirstiella pelaezi 78, 99, 104, 105, Hirstiella pyriformis 78, 101

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Hirstiella sp.78, 100, 104 Hirstiella trombidiformis 79, 98, 105 Hirudinea 69 Hirudinidae 70 Hygrobdella pelaezi 69 Hyponeocula imitator 81, 101, 108–110 Hyponeocula sauricola 82, 104 Icosiella sp. 54, 88 Inermiformis 46 Infidum similis Ixobioides mexicanensis 74 Ixobioides sp. 73, 113 Ixodida 70 Ixodidae 71 Ixodorhynchidae 73 Ixodorhynchus leptodeirae 73, 110 Ixodorhynchus liponyssoides 73, 108 Kalicephalus (Inermiformis) macrovulvus 46 Kalicephalus conoides 46 Kalicephalus humilis 46 Kalicephalus inermis 46, 112, 113 Kalicephalus inermis coronellae 46, 109, 113 Kalicephalus inermis macrovulvus 46, 109, 113 Kalicephalus macrovulvus 46 Kalicephalus subulatus 46, 108 Kathlaniidae 50 Kiricephalus coarctatus 85, 108, 111, 112 Klossinemella 41, 42 Klossinemella caballeroi 41, 116 Klossinemella parvicapiticoronata 41, 117 Langeronia 17 Langeronia jimenezi 18 Langeronia macrocirra 17, 18, 88, 90, 91, 94, 95 Learedius learedi 26, 114 Lecithodendriidae 17 Leeuwenhoekiidae 83 Leptodera elongata 50 Limatulum sp. 18, 94 Limnobdella 70 Limnobdella mexicana 70 Limnobdella olivacea 70, 94 Longibucca sp. 45, 116 Loxogenes 17 Loxogenes sp. 18, 91 Macdonaldius 55 Macdonaldius andersoni 55, 100 Macdonaldius colimensis 55, 108, 112 Macdonaldius grassi 55, 102, 103, 105 Macdonaldius oschei 55, 108–110, 112, 113 Macdonaldius seetai 55, 112 Macracis 59 Macracis prolixa 59 Macroderoididae 18 Macronyssidae 74 Massoprostatum longum 25, 119 Mathevotaenia 31 Mathevotaenia antrozoi 31, 97 Megalobatrachonema (Chabaudgolvania) 50 Megalobatrachonema (Chabaudgolvania) elongata 50

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Megalodiscus americanus 9, 87, 91, 93, 94 Megalodiscus montezumae 10 Megalodiscus sp. 10, 90 Megalodiscus temperatus 9, 89, 90, 92–94, 97 Mermis sp. 53, 103 Mermithidae 53 Mesocestoides sp. 33, 98, 101, 103, 105, 106, 109, 112, 113 Mesocestoididae 33 Mesocoelium leiperi 8 Mesocoelium monas 8, 88, 90, 107, 109, 110 Mesocoelium travassosi 8 Mesostephanus sp. 11, 92 Mesostigmata 73 Metroliasthes 34 Metroliasthes mexicana 34, 93 Micropleura sp. 53, 119 Micropleura vazi 53 Micropleuridae 53 Microscaphidiidae 20 Microtrombicula intermedia 82, 103 Microtrombicula phyllodactyli 82, 99, 100 Molineidae 53 Monogenoidea 4, 29 Nematoda 4, 38 Nematophila grandis 10, 116 Nematotaenia dispar 34, 87, 88 Nematotaeniidae 33 Neochetosoma 22 Neocruzia morleyi 51 Neodiplorchis scaphiopi 29, 95 Neoechinorhynchidae 36 Neoechinorhynchus emydis 36, 115 Neoechinorhynchus emyditoides 36, 115 Neoechinorhynchus golvani 37, 92 Neoechinorhynchus schmidti 37, 115 Neoechinorhynchus sp. 37, 115 Neopolystoma 30 Neopolystoma domitilae 30, 114, 115 Neopolystoma orbiculare 30, 115, 117 Neorenifer 23 Neoxysomatoides 43 Oaxacarus geophis 82, 109 Ochetosoma 22, 23 Ochetosoma aniarum 21, 110 Ochetosoma brevicaecum 22, 111, 112 Ochetosoma chauhani 22, 109 Ochetosoma crotali 22, 113 Ochetosoma ellipticum 22, 108–113 Ochetosoma elongatum 22, 23 Ochetosoma grandispinus 22, 109 Ochetosoma kansense 22 Ochetosoma sp. 23, 91, 93, 96 Ochoterenella caballeroi 55, 88 Ochoterenella chiapensis 55, 88 Ochoterenella digiticauda 55, 56, 88, 92, 95 Ochoterenella figueroai 56, 88 Ochoterenella lamothei 56, 88 Ochoterenella nanolarvata 56, 88 Ochoterenella sp. 56, 88

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Octangioides skrjabini 21, 115 Octangioides tlacotalpensis 21, 115 Odontacarus robbinsi 84, 98, 100, 104, 106 Oligacanthorhynchidae 37 Oligacanthorhynchidae gen. sp. 37, 89, 94, 102, 106, 109, 110–113 Onchocercidae 54 Oncicola luehei 37, 90 Oncicola sp. 37, 92, 95 Oochoristica 32 Oochoristica acapulcoensis 31, 32, 100 Oochoristica antrozoi 31 Oochoristica eumecis 32 Oochoristica leonregagnonae 31, 100 Oochoristica osheroffi 31, 101 Oochoristica parva 32 Oochoristica parvula 31, 99 Oochoristica phrynosomatis 32, 102 Oochoristica scelopori 32, 102, 103–105 Oochoristica sp. 32, 99, 100, 101, 106, 113 Oochoristica whitentoni 32, 101 Oochoristica whitfieldi32, 100 Ophidascaris ashi 40, 110 Ophidascaris ochoterenai 40, 109, 112 Ophidascaris sp. 40, 89 Ophionyssus natricis 74, 98, 99, 108, 110, 111, 113, 115–117 Ophiotaenia 34, 35 Ophiotaenia filaroides 34, 35, 91, 93, 97 Ophiotaenia magna 35, 93, 94 Ophiotaenia nattereri 35, 108 Ophiotaenia perspícua 35, 110, 113 Ophiotaenia racemosa 35, 111, 112 Opisthogonimus 23 Opisthogonimus tabascensis 23, 109 Orchidasma amphiorchis 27, 114 Orientatractis 42 Ornithodoros turicata 71, 118 Ostiolum complexum 15 Oswaldocruzia pipiens 53, 87–90, 92, 94, 98 Oswaldocruzia sp. 54, 86–88, 90, 91, 95, 98 Oswaldocruzia subauricularis 54, 88, 90, 92, 95 Oswaldofilaria brevicaudata 56, 101 Oxysomatium 43 Oxysomatium mexicanum 43 Oxyuridae 57 Oxyuridae gen. sp. 57, 115 Ozobranchidae 70 Ozobranchus branchiatus 70, 114 Ozobranchus sp. 70, 114 Ozolaimus 59 Ozolaimus cirratus 58, 101 Ozolaimus ctenosauri 58, 100, 101, 113 Ozolaimus megatyphlon 59, 101 Ozolaimus monhystera 59 Ozolaimus prolixa 59, 100 Ozolaimus sp. 59, 101 Pachypsolidae 21 Pachypsolus brachus 21 Pachypsolus irroratus 21, 114 Paracamallanus sp. 42, 93

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Paracapillaria 68 Paracapillaria (Ophidiocapillaria) sonsinoi 68 Parachiorchis parviacetabulatus 10, 115 Parahaplometroides basiliscae 23, 98 Parallopharynx arctus 20, 98 Parapharyngodon 59, 60 Parapharyngodon alvarengai 59, 99, 104, 106 Parapharyngodon californiensis 59, 108 Parapharyngodon grismeri 59, 102 Parapharyngodon iguanae 60, 104 Parapharyngodon lamothei 60, 97 Parapharyngodon maestro 60, 97 Parasecia gurneyi 82, 99, 100 Parasecia kansasensis 83, 99 Parathelandros scelopori 61 Paratrichosoma recurvum 69, 118 Paruterinidae 34 Pelaezia 6 Pelaezia loossi 6, 119 Pelaezia unami 6, 118 Pentastomida 4, 85 Pharyngodon 61 Pharyngodon cnemidophori 60, 107 Pharyngodon sp. 60, 104 Pharyngodon yucatanensis 60, 99 Pharyngodonidae 57 Phyllodistomum rhyacosiredonis 14 Physaloptera obtussima 63, 101 Physaloptera retusa 63, 98, 103–105, 107 Physaloptera sp. 63, 87–90, 92, 94, 102 Physalopteridae 62 Physocephalus sexalatus 68, 88 Physocephalus sp. 68, 87, 88, 90, 95, 104, 105 Pintobdella olivacea 70 Piratuba lanceolata 56, 105 Piratuba prolifica 57, 103, 104 Piratuba sp. 57, 99, 106 Placobdella mexicana 69 Placobdella moorei 69, 116, 117 Placobdella ornata 70 Placobdella parasítica 69, 118 Placobdella ringueleti 70 Placobdella rugosa 70 Placobdella sp. 69, 115, 116, 117 Plagiorchiidae 21 Plagiorhynchidae 38 Plagiorhynchus sp. 38, 95 Plathyhelmintes 3, 6 Plesiochorus cymbiformis 14, 114 Pleurogenoides sp. 18, 94 Pleurogonius 24 Pleurogonius linearis 24, 114 Pleurogonius lobatus 24, 114 Pleurogonius sp. 24, 114 Pneumatophilus variabilis 23, 112 Polymorphidae 38 Polymorphus brevis 38, 96, 111, 112, 116 Polymorphus sp. 38 Polymorphus 38, 88

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Polystoma (Polystomoides) domitilae 30 Polystoma (Polystomoides) oblongum 30 Polystoma naevius 30, 90 Polystomatidae 29 Polystomoidella oblonga 30, 116, 117 Polystomoidella whartoni30, 116, 117 Polystomoides coronatum 30, 115, 118 Polystomoides sp. 31, 115 Porocephalida 85 Porocephalidae 85 Porocephalus basiliscus 85, 113 Porocephalus clavatus 85, 108 Porocephalus crotali 85, 112, 113 Porocephalus tortugensis 86, 113 Porrocaecum sp. 40, 86, 90, 112 Posthodiplostomum minimum 12, 96, 116 Proatractis parvicapiticoronata 42 Proctocaecum 7 Proctocaecum acuti 6 Proctocaecum caballeroi 7, 118 Proctocaecum megacetabulum 7, 109 Proctocaecum nuevoleonensis 7, 118 Proctocaecum scyphocephalum 7, 119 Pronocephalidae 23 Prosorchis psenopsis 27, 114 Prosthenorchis sp. 38, 88 Prostigmata 74 Proteocephalidae 34 Proteocephalidae gen sp. 34, 96 Proteocephalidea 34, 35 Proteocephalus 34, 36 Proteocephalus micruricola 35, 36, 112 Proteocephalus sp. 35, 110 Proteocephalus variabilis 36, 111, 112 Proterodiplostomidae 25 Proterodiplostomum ophidum 25, 109 Proterodiplostomum tumidulum25, 119 Pseudalaeuris 59 Pseudocleptodiscus 10 Pseudocleptodiscus bravoae 10 Pseudocleptodiscus margaritae 10, 115 Pseudodiplorchis americanus 95 Pseudoneodiplostomum groschafti 25, 119 Pseudoneodiplostomum sp. 25 Pseudophyllidea 36 Pseudophyllidea gen. sp.36, 88 Pterygosomatidae 74, 76, 77 Pterygosomatidae gen. sp. 77, 79, 100, 102 Pyelosomum cochlear 24, 114 Pyelosomum renicapite 24, 114 Quimperiidae 64 Raillietiella furcocerca 85, 109, 112 Raillietnema brachyspiculatum 45, 98, 108 Raillietnema sp. 45, 88 Rauschiella 20 Rauschiella poncedeleoni 20, 88, 90 Rauschiella tineri 20, 86, 90, 109–111 Renifer 22 Renifer grandispinus23

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Rhabdias americanus 65, 87, 88, 90 Rhabdias elegans 65, 90 Rhabdias füelleborni 65, 87, 88, 90, 91, 95 Rhabdias fuscovenosa 65, 110–112 Rhabdias kuzmini 66, 87 Rhabdias lamothei 66, 110 Rhabdias leonae 66, 106 Rhabdias manantlanensis 66, 86 Rhabdias pseudosphaerocephala 67 Rhabdias ranae 67, 90–92, 94 Rhabdias savagei 67, 91 Rhabdias sp.67, 88, 90, 95, 98 Rhabdias sphaerocephala 67, 68, 90, 92, 94, 95, 119 Rhabdias tobagoensis 67, 89 Rhabdiasidae 65 Rhabdochona sp. 67, 96 Rhabdochonidae 67 Rhytidodes gelatinosus 26, 114 Rhytidodidae 26 Riojatrema bravoae 31, 86, 88 Saurofilaria 55 Scatonema wuelkeri 38, 104 Schizamphistomoides resupinatus 9 Schizamphistomoides tabascensis 9 Sclerodistomidae 27 Serpinema 42 Serpinema magathi 42 Serpinema trispinosum 42, 92, 112, 115, 116 Skrjabinodon 61 Skrjabinoptera phrynosoma 63, 102, 104–107 Skrjabinoptera scelopori 60, 64, 99, 102, 103, 105 Skrjabinoptera sp. 64, 105 Spauligodon 61 Spauligodon garciaprietoi 61, 107 Spauligodon giganticus 61, 102–104, 108 Spauligodon lamothei 61, 103, 104 Spauligodon oxkutzcabiensis 61, 100, 103–105, 108 Spauligodon xenosauri 61, 108 Spinitectus osorioi 46, 112 Spirocercidae 68 Spironoura 50, 52 Spironoura affinis 52 Spironoura cryptobranchi 52 Spironoura elongata 50 Spironoura intermédia 52 Spirorchiidae 26 Spiroxys amydae 48, 118 Spiroxys contortus 48, 91, 96, 115, 117 Spiroxys corti 48, 93, 117 Spiroxys sp. 48, 90, 91, 93, 95, 96, 115 Spiroxys susanae 49, 93, 111, 112 Spiroxys triretrodens 49, 115, 117 Spiruridae 68 Spiruridae gen. sp. 68, 99 Strigeidae 26 Strigeoidea gen. sp. 26, 112 Strongyloides sp. 68, 89 Strongyloididae 68 Strongyluris acaudata 49, 50, 105

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Strongyluris similis 50, 102–106 Strongyluris sp. 50, 86, 104 Styphlodora horrida 23, 108, 109, 110, 111, 113 Styphlotrema solitarium 23, 114 Subtriquetridae 86 Subtriquetra subtriquetra 86, 118 Subulascaris falcaustriformis 64, 90, 92, 94, 95 Tachygonetria dentata 62 Tachygonetria macrolaimus 62 Tachygonetria macrolaimus tetrapapillata 61, 117, 118 Tachygonetria neártica 62, 117, 118 Tachygonetria tetrapapillata 62 Telorchiidae 27 Telorchis 28, 29 Telorchis (=Cercorchis) thamnophidis 28 Telorchis aculeatus 28 Telorchis attenuatus 27, 28 Telorchis bravoae 27, 117 Telorchis caballeroi 27, 116, 117 Telorchis corti 27, 28, 108, 110–112, 114–118 Telorchis dhongokii 28, 110 Telorchis diminutus 28, 29 Telorchis dissentaneus 28, 117 Telorchis dissimilis 28, 115, 116 Telorchis kinosterni 28 Telorchis membranaceus 28, 115 Telorchis patonianus 29, 97, 116, 117 Telorchis pleroticus 27, 28 Telorchis pseudoaculeatus 28 Telorchis relfooti 29, 117 Telorchis robustus 28, 29, 116 Telorchis singularis 29, 116 Telorchis sp. 28, 29, 88, 115, 117–119 Terranova sp. 39, 106 Tequisistlana oaxacensis 79, 108 Thaparia macrocephalus 62, 117, 118 Thaparia microcephalus 62, 117, 118 Thelandros 59 Thelandros iguanae 60 Thelandros sp. 62, 98 Thubunaea ctenosauri 64, 101, 106, 107 Thubunaea iguanae 64, 103, 104, 106, 107 Thubunaea intestinalis 64, 103–105 Timoniella 6 Trematoda 6 Trichuridae 68 Trombiculidae 79 Trombiculidae gen. sp. 83, 102–104 Tylodelphys sp. 13, 111, 112 Vasotrema amydae 26, 118 Vasotrema sp. 26 Waltonella 54 Westella 23 Whartonacarus nativitatis 83, 106