DOCSLIB.ORG

(Kathlaniidae), Including Redescription of the Species and Amendment of Genus Diagnosis Author(S): Felipe B

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
(Kathlaniidae), Including Redescription of the Species and Amendment of Genus Diagnosis Author(S): Felipe B A Morphological and Molecular Study of Spectatus spectatus (Kathlaniidae), Including Redescription of the Species and Amendment of Genus Diagnosis Author(s): Felipe B. Pereira, Luiz E. R. Tavares, Fernando Paiva, Tomáš Scholz, and José L. Luque Source: Journal of Parasitology, 101(4):468-475. Published By: American Society of Parasitologists DOI: http://dx.doi.org/10.1645/15-764.1 URL: http://www.bioone.org/doi/full/10.1645/15-764.1 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. J. Parasitol., 101(4), 2015, pp. 468–475 Ó American Society of Parasitologists 2015 A MORPHOLOGICAL AND MOLECULAR STUDY OF SPECTATUS SPECTATUS (KATHLANIIDAE), INCLUDING REDESCRIPTION OF THE SPECIES AND AMENDMENT OF GENUS DIAGNOSIS Felipe B. Pereira, Luiz E. R. Tavares*, Fernando Paiva*, Toma´sˇ Scholz†, and Jose´ L. Luque‡ Programa de Pos-Gradua¸´ ca˜o em Ciˆencias Veterina´rias, Universidade Federal Rural do Rio de Janeiro, Caixa Postal 74.540, 23851-970, Serop´edica, RJ, Brazil. Correspondence should be sent to: [email protected] ABSTRACT: Spectatus spectatus Travassos, 1923 (Nematoda: Kathlaniidae) found in the intestine of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes: Serrasalmidae) from the River Miranda, Mato Grosso do Sul, Brazil is redescribed based on morphological evaluation of newly collected material and examination of type and voucher specimens from the Coleca¸˜o Helmintologica´ do Instituto Oswaldo Cruz. The following characteristics previously unreported or insufficiently described were observed: morphology of lips, presence of lamellae-like supplementary lips, presence of pharynx and cuticular ring surrounding the oral opening associated with a complex cuticular apparatus anterior to the pharynx, the number and arrangement of caudal papillae (13 pairs plus 1 unpaired), and the position of nerve ring. Since S. spectatus is the type species of Spectatus, the diagnosis of this Neotropical genus is amended. Synonymy of Chabaudinema Dı´az-Ungrı´a, 1968 with Spectatus, first proposed in 1980 by Baker, is supported by the present data. Molecular data that include the first sequence of the SSU rDNA for any species of Spectatus indicate a basal position of S. spectatus within Cosmocercoidea, forming a distant lineage from that comprising 2 species of Falcaustra Lane, 1915. This separate position of S. spectatus supports validity of the genus. The nematode genus Spectatus Travassos, 1923 (Nematoda: MATERIALS AND METHODS Kathlaniidae) includes only 2 species, Spectatus spectatus One specimen of Piaractus mesopotamicus (Holmberg, 1887) (Char- Travassos, 1923 and Spectatus cichlasomae Moravec and Barusˇ, aciformes: Serrasalmidae) (total body length of 40.5 cm) was collected by 1971, parasites of the posterior intestine of freshwater fishes from hook in the River Miranda, Mato Grosso do Sul, Brazil (208S, 568W), on 8 Central and South America (Moravec, 1998). Its type species, June 2013. Host nomenclature and classification follows Froese and Pauly Spectatus spectatus, has been reported mainly from serrasalmid (2014). Nematodes found in the intestine were washed in saline and 4 fishes (Serrasalmidae) and, less frequently, parasitizing fishes of specimens were fixed in hot (almost boiling) 4% formaldehyde solution the families Bryconidae, Doradidae, and Pimelodidae in the and then preserved in 70% ethanol. For morphological observations, nematodes were cleared in glycerine. The middle body part of another Parana´River basin in Brazil and Argentina (Travassos, 1923; specimen (male) individual was fixed in molecular-graded 96–99% ethanol Travassos and Kohn, 1965; Hamann, 1982a, 1982b; Masi for genetic studies (see below). Drawings were made using a drawing tube Palla´res, 1990; Parra et al., 1997; Moravec, 1998; Santos et al., attached to a microscope Olympus BX51 (Olympus America Inc., Center 2003; Campos et al., 2009). Despite its widespread occurrence, the Valley, Pennsylvania). Measurements are given in range and micrometers morphology of S. spectatus is not sufficiently known, which has (lm), unless otherwise stated. Some specimens (1 male and 1 female) for SEM were dehydrated through a graded ethanol series, dried in generated problems in separating Spectatus from 2 other hexamethyldisilazane, coated with gold, and examined in a JEOL JSM- kathlaniid genera, Falcaustra Lane, 1915 and Chabaudinema 740 1F SEM (Jeol, Tokyo, Japan) operating at 4 kV. The type material Dı´az-Ungrı´a, 1968 (see Baker, 1980). Thus, obtaining new and voucher specimens of S. spectatus and Spectatus sp. deposited in the morphological and molecular data on the species of this poorly- CHIOC were observed (see Table I for list of specimens and Table II for known genus is needed. measurements). Newly collected specimens studied were deposited in the Here we provided the emended diagnosis of Spectatus based on CHIOC (Coll. No. 36729a). The systematic classification of the parasites follows Moravec (1998) and Anderson et al. (2009). a redescription of S. spectatus that also includes scanning electron The anterior and posterior ends from the male specimen used for microscopy (SEM) observations using newly collected material molecular analysis, i.e., hologenophores (see Astrin et al., 2013), were and examination of type and voucher specimens of S. spectatus identified based on their morphology (CHIOC 36729b). Taxa for which from the Coleca¸˜o Helmintologica´ do Instituto Oswaldo Cruz sequences have been retrieved from GenBank are listed in Table III, (CHIOC). In addition, we assess the phylogenetic relationships of including species used as outgroups; they were chosen based on the phylogenetic analyses of Cernotıˇ ´kova´et al. (2011). Genomic DNA was S. spectatus with other cosmocercoid nematodes for the first time isolated using a DNeasy Blood & Tissue Kit (Qiagen, Hilden, Germany) using the newly generated sequence of the SSU rDNA. following the manufacturer’s instructions. The SSU rDNA gene (18S) was amplified using the protocol and primers PhilonemaF þ PhilonemaPCRr described in Cernotıˇ ´kova´et al. (2011). PCR products were purified through an enzymatic treatment with exonuclease I and shrimp alkaline phosphatase (Werle et al., 1994) and Sanger-sequenced at GATC Biotech (Konstanz, Germany) using the PCR primers and 2 internal primers WF760 and WR800 (Cernotıˇ ´kova´et al., 2011). Contiguous sequences Received 15 March 2015; revised 20 April 2015; accepted 27 April 2015. were assembled in Geneious (Geneious ver. 7 created by Biomatters, * Laboratorio´ de Parasitologia Veterina´ria, Centro de Cienciasˆ available from http://www.geneious.com/) and deposited in the GenBank Biologicas´ e da Saude,´ Universidade Federal do Mato Grosso do database under the accession no. KR139827 (SSU rDNA). Sul, Cidade Universita´ria S/N, Campo Grande, 7907-900, Mato The SSU rDNA datasets were aligned separately using the E-INS-i Grosso do Sul, MS, Brazil. algorithm of the program MAFFT (Katoh et al., 2002) implemented in † Institute of Parasitology, Biology Centre of the Czech Academy of Geneious software, and ambiguously aligned positions were excluded. Sciences, Branisˇovska´31, Ceskˇ eBud´ ejovice,ˇ 370 05, Czech Republic. Gene alignments were then subjected to maximum likelihood (ML) and ‡ Departamento de Parasitologia Animal, Universidade Federal Rural Bayesian inference (BI) analyses. ML and BI trees were calculated under do Rio de Janeiro, Seropedica,´ Caixa Postal 74.540, 23851-970, Rio the GTRþIþG model using PHYML (Guindon and Gascuel, 2003) and de Janeiro, RJ, Brazil. MrBayes (Huelsenbeck and Ronquist, 2001) Geneious plugins, respec- DOI: 10.1645/15-764.1 tively. BI analysis was run for 2 3 106 generations, sampling every 500th 468 PEREIRA ET AL.—REDESCRIPTION OF SPECTATUS SPECTATUS 469 TABLE I. List of specimens of Spectatus Travassos, 1923 deposited in the Coleca¸˜o Helmintologica´ do Instituto Oswaldo Cruz (CHIOC) and analyzed in the present study. CHIOC accession no. Species identification Specimens status Remarks 8626, 1654, 1656, 20737, 20746 Spectatus sp. Vouchers Poorly preserved; impossible to identify the specific status 1655 Spectatus sp. Vouchers Poorly preserved; only buccal capsule recognizable indicating that the material belongs to a Camallanus sp. 4049, 4051–53, 4060, 4078, 11102–11104 Spectatus spectatus Vouchers Poorly preserved; impossible to identify the specific status 14724–27, 14744, 14745, 14749, 14752, 16054– S. spectatus Vouchers* Poorly preserved; possible to perform some 56, 20507, 20735–36, 20738–45, 20750–53 measurements and observe some features (see remarks and discussion) 37498a, b S. spectatus Vouchers* Well preserved; possible to measure and observe most features
Load more

Recommended publications
  • Faculdade De Biociências
    FACULDADE DE BIOCIÊNCIAS PROGRAMA DE PÓS-GRADUAÇÃO EM ZOOLOGIA ANÁLISE FILOGENÉTICA DE DORADIDAE (PISCES, SILURIFORMES) Maria Angeles Arce Hernández TESE DE DOUTORADO PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO GRANDE DO SUL Av. Ipiranga 6681 - Caixa Postal 1429 Fone: (51) 3320-3500 - Fax: (51) 3339-1564 90619-900 Porto Alegre - RS Brasil 2012 PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO GRANDE DO SUL FACULDADE DE BIOCIÊNCIAS PROGRAMA DE PÓS-GRADUAÇÃO EM ZOOLOGIA ANÁLISE FILOGENÉTICA DE DORADIDAE (PISCES, SILURIFORMES) Maria Angeles Arce Hernández Orientador: Dr. Roberto E. Reis TESE DE DOUTORADO PORTO ALEGRE - RS - BRASIL 2012 Aviso A presente tese é parte dos requisitos necessários para obtenção do título de Doutor em Zoologia, e como tal, não deve ser vista como uma publicação no senso do Código Internacional de Nomenclatura Zoológica, apesar de disponível publicamente sem restrições. Dessa forma, quaisquer informações inéditas, opiniões, hipóteses e conceitos novos apresentados aqui não estão disponíveis na literatura zoológica. Pessoas interessadas devem estar cientes de que referências públicas ao conteúdo deste estudo somente devem ser feitas com aprovação prévia do autor. Notice This thesis is presented as partial fulfillment of the dissertation requirement for the Ph.D. degree in Zoology and, as such, is not intended as a publication in the sense of the International Code of Zoological Nomenclature, although available without restrictions. Therefore, any new data, opinions, hypothesis and new concepts expressed hererin are not available
    [Show full text]
  • Gastrointestinal Helminthic Parasites of Habituated Wild Chimpanzees
    Aus dem Institut für Parasitologie und Tropenveterinärmedizin des Fachbereichs Veterinärmedizin der Freien Universität Berlin Gastrointestinal helminthic parasites of habituated wild chimpanzees (Pan troglodytes verus) in the Taï NP, Côte d’Ivoire − including characterization of cultured helminth developmental stages using genetic markers Inaugural-Dissertation zur Erlangung des Grades eines Doktors der Veterinärmedizin an der Freien Universität Berlin vorgelegt von Sonja Metzger Tierärztin aus München Berlin 2014 Journal-Nr.: 3727 Gedruckt mit Genehmigung des Fachbereichs Veterinärmedizin der Freien Universität Berlin Dekan: Univ.-Prof. Dr. Jürgen Zentek Erster Gutachter: Univ.-Prof. Dr. Georg von Samson-Himmelstjerna Zweiter Gutachter: Univ.-Prof. Dr. Heribert Hofer Dritter Gutachter: Univ.-Prof. Dr. Achim Gruber Deskriptoren (nach CAB-Thesaurus): chimpanzees, helminths, host parasite relationships, fecal examination, characterization, developmental stages, ribosomal RNA, mitochondrial DNA Tag der Promotion: 10.06.2015 Contents I INTRODUCTION ---------------------------------------------------- 1- 4 I.1 Background 1- 3 I.2 Study objectives 4 II LITERATURE OVERVIEW --------------------------------------- 5- 37 II.1 Taï National Park 5- 7 II.1.1 Location and climate 5- 6 II.1.2 Vegetation and fauna 6 II.1.3 Human pressure and impact on the park 7 II.2 Chimpanzees 7- 12 II.2.1 Status 7 II.2.2 Group sizes and composition 7- 9 II.2.3 Territories and ranging behavior 9 II.2.4 Diet and hunting behavior 9- 10 II.2.5 Contact with humans 10 II.2.6
    [Show full text]
  • Phylogenetic Relationships of the South American Doradoidea (Ostariophysi: Siluriformes)
    Neotropical Ichthyology, 12(3): 451-564, 2014 Copyright © 2014 Sociedade Brasileira de Ictiologia DOI: 10.1590/1982-0224-20120027 Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes) José L. O. Birindelli A phylogenetic analysis based on 311 morphological characters is presented for most species of the Doradidae, all genera of the Auchenipteridae, and representatives of 16 other catfish families. The hypothesis that was derived from the six most parsimonious trees support the monophyly of the South American Doradoidea (Doradidae plus Auchenipteridae), as well as the monophyly of the clade Doradoidea plus the African Mochokidae. In addition, the clade with Sisoroidea plus Aspredinidae was considered sister to Doradoidea plus Mochokidae. Within the Auchenipteridae, the results support the monophyly of the Centromochlinae and Auchenipterinae. The latter is composed of Tocantinsia, and four monophyletic units, two small with Asterophysus and Liosomadoras, and Pseudotatia and Pseudauchenipterus, respectively, and two large ones with the remaining genera. Within the Doradidae, parsimony analysis recovered Wertheimeria as sister to Kalyptodoras, composing a clade sister to all remaining doradids, which include Franciscodoras and two monophyletic groups: Astrodoradinae (plus Acanthodoras and Agamyxis) and Doradinae (new arrangement). Wertheimerinae, new subfamily, is described for Kalyptodoras and Wertheimeria. Doradinae is corroborated as monophyletic and composed of four groups, one including Centrochir and Platydoras, the other with the large-size species of doradids (except Oxydoras), another with Orinocodoras, Rhinodoras, and Rhynchodoras, and another with Oxydoras plus all the fimbriate-barbel doradids. Based on the results, the species of Opsodoras are included in Hemidoras; and Tenellus, new genus, is described to include Nemadoras trimaculatus, N.
    [Show full text]
  • Summary Report of Freshwater Nonindigenous Aquatic Species in U.S
    Summary Report of Freshwater Nonindigenous Aquatic Species in U.S. Fish and Wildlife Service Region 4—An Update April 2013 Prepared by: Pam L. Fuller, Amy J. Benson, and Matthew J. Cannister U.S. Geological Survey Southeast Ecological Science Center Gainesville, Florida Prepared for: U.S. Fish and Wildlife Service Southeast Region Atlanta, Georgia Cover Photos: Silver Carp, Hypophthalmichthys molitrix – Auburn University Giant Applesnail, Pomacea maculata – David Knott Straightedge Crayfish, Procambarus hayi – U.S. Forest Service i Table of Contents Table of Contents ...................................................................................................................................... ii List of Figures ............................................................................................................................................ v List of Tables ............................................................................................................................................ vi INTRODUCTION ............................................................................................................................................. 1 Overview of Region 4 Introductions Since 2000 ....................................................................................... 1 Format of Species Accounts ...................................................................................................................... 2 Explanation of Maps ................................................................................................................................
    [Show full text]
  • The Phylogenetics of Anguillicolidae (Nematoda: Anguillicolidea), Swimbladder Parasites of Eels
    UC Davis UC Davis Previously Published Works Title The phylogenetics of Anguillicolidae (Nematoda: Anguillicolidea), swimbladder parasites of eels Permalink https://escholarship.org/uc/item/3017p5m4 Journal BMC Evolutionary Biology, 12(1) ISSN 1471-2148 Authors Laetsch, Dominik R Heitlinger, Emanuel G Taraschewski, Horst et al. Publication Date 2012-05-04 DOI http://dx.doi.org/10.1186/1471-2148-12-60 Peer reviewed eScholarship.org Powered by the California Digital Library University of California The phylogenetics of Anguillicolidae (Nematoda: Anguillicoloidea), swimbladder parasites of eels Laetsch et al. Laetsch et al. BMC Evolutionary Biology 2012, 12:60 http://www.biomedcentral.com/1471-2148/12/60 Laetsch et al. BMC Evolutionary Biology 2012, 12:60 http://www.biomedcentral.com/1471-2148/12/60 RESEARCH ARTICLE Open Access The phylogenetics of Anguillicolidae (Nematoda: Anguillicoloidea), swimbladder parasites of eels Dominik R Laetsch1,2*, Emanuel G Heitlinger1,2, Horst Taraschewski1, Steven A Nadler3 and Mark L Blaxter2 Abstract Background: Anguillicolidae Yamaguti, 1935 is a family of parasitic nematode infecting fresh-water eels of the genus Anguilla, comprising five species in the genera Anguillicola and Anguillicoloides. Anguillicoloides crassus is of particular importance, as it has recently spread from its endemic range in the Eastern Pacific to Europe and North America, where it poses a significant threat to new, naïve hosts such as the economic important eel species Anguilla anguilla and Anguilla rostrata. The Anguillicolidae are therefore all potentially invasive taxa, but the relationships of the described species remain unclear. Anguillicolidae is part of Spirurina, a diverse clade made up of only animal parasites, but placement of the family within Spirurina is based on limited data.
    [Show full text]
  • AMPHIBIA: ANURA: LEPTODACTYLIDAE Leptodactylus Pentadactylus
    887.1 AMPHIBIA: ANURA: LEPTODACTYLIDAE Leptodactylus pentadactylus Catalogue of American Amphibians and Reptiles. Heyer, M.M., W.R. Heyer, and R.O. de Sá. 2011. Leptodactylus pentadactylus . Leptodactylus pentadactylus (Laurenti) Smoky Jungle Frog Rana pentadactyla Laurenti 1768:32. Type-locality, “Indiis,” corrected to Suriname by Müller (1927: 276). Neotype, Nationaal Natuurhistorisch Mu- seum (RMNH) 29559, adult male, collector and date of collection unknown (examined by WRH). Rana gigas Spix 1824:25. Type-locality, “in locis palu - FIGURE 1. Leptodactylus pentadactylus , Brazil, Pará, Cacho- dosis fluminis Amazonum [Brazil]”. Holotype, Zoo- eira Juruá. Photograph courtesy of Laurie J. Vitt. logisches Sammlung des Bayerischen Staates (ZSM) 89/1921, now destroyed (Hoogmoed and Gruber 1983). See Nomenclatural History . Pre- lacustribus fluvii Amazonum [Brazil]”. Holotype, occupied by Rana gigas Wallbaum 1784 (= Rhin- ZSM 2502/0, now destroyed (Hoogmoed and ella marina {Linnaeus 1758}). Gruber 1983). Rana coriacea Spix 1824:29. Type-locality: “aquis Rana pachypus bilineata Mayer 1835:24. Type-local MAP . Distribution of Leptodactylus pentadactylus . The locality of the neotype is indicated by an open circle. A dot may rep - resent more than one site. Predicted distribution (dark-shaded) is modified from a BIOCLIM analysis. Published locality data used to generate the map should be considered as secondary sources, as we did not confirm identifications for all specimen localities. The locality coordinate data and sources are available on a spread sheet at http://learning.richmond.edu/ Leptodactylus. 887.2 FIGURE 2. Tadpole of Leptodactylus pentadactylus , USNM 576263, Brazil, Amazonas, Reserva Ducke. Scale bar = 5 mm. Type -locality, “Roque, Peru [06 o24’S, 76 o48’W].” Lectotype, Naturhistoriska Riksmuseet (NHMG) 497, age, sex, collector and date of collection un- known (not examined by authors).
    [Show full text]
  • Food Ecology of Hassar Affinis (Actinopterygii: Doradidae)
    Research, Society and Development, v. 10, n. 8, e10110816973, 2021 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v10i8.16973 Food ecology of Hassar affinis (Actinopterygii: Doradidae) in two lakes of a wet zone of international importance in Northeast Brazil Ecologia alimentar de Hassar affinis (Actinopterygii: Doradidae) em dois lagos de uma zona úmida de importância internacional no Nordeste do Brasil Ecología alimentaria de Hassar affinis (Actinopterygii: Doradidae) en dos lagos de una zona húmeda de importancia internacional en el Noreste de Brasil Received: 06/08/2021 | Reviewed: 06/16/2021 | Accept: 06/21/2021 | Published: 07/07/2021 Maria Fabiene de Sousa Barros ORCID https://orcid.org/0000-0003-4280-443X Universidade Estadual do Maranhão, Brazil E-mail: [email protected] Zafira da Silva de Almeida ORCID https://orcid.org/0000-0002-8295-5040 Universidade Estadual do Maranhão, Brazil E-mail: [email protected] Marina Bezerra Figueiredo ORCID http://orcid.org/0000-0001-7485-8593 Universidade Estadual do Maranhão, Brazil E-mail: [email protected] Jorge Luiz Silva Nunes ORCID https://orcid.org/0000-0001-6223-1785 Universidade Estadual do Maranhão, Brazil E-mail: [email protected] Raimunda Nonata Fortes Carvalho Neta ORCID http://orcid.org/0000-0002-3519-5237 Universidade Estadual do Maranhão, Brazil E-mail: [email protected] Abstract The study aimed to describe the aspects of trophic ecology and feeding strategy of the Hassar affinis species in two lakes in the Baixada Maranhense region a wetland of international ecological interest (Site Ramsar). Individuals were collected monthly for one year.
    [Show full text]
  • Ahead of Print Online Version Phylogenetic Relationships of Some
    Ahead of print online version FOLIA PARASITOLOGICA 58[2]: 135–148, 2011 © Institute of Parasitology, Biology Centre ASCR ISSN 0015-5683 (print), ISSN 1803-6465 (online) http://www.paru.cas.cz/folia/ Phylogenetic relationships of some spirurine nematodes (Nematoda: Chromadorea: Rhabditida: Spirurina) parasitic in fishes inferred from SSU rRNA gene sequences Eva Černotíková1,2, Aleš Horák1 and František Moravec1 1 Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branišovská 31, 370 05 České Budějovice, Czech Republic; 2 Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic Abstract: Small subunit rRNA sequences were obtained from 38 representatives mainly of the nematode orders Spirurida (Camalla- nidae, Cystidicolidae, Daniconematidae, Philometridae, Physalopteridae, Rhabdochonidae, Skrjabillanidae) and, in part, Ascaridida (Anisakidae, Cucullanidae, Quimperiidae). The examined nematodes are predominantly parasites of fishes. Their analyses provided well-supported trees allowing the study of phylogenetic relationships among some spirurine nematodes. The present results support the placement of Cucullanidae at the base of the suborder Spirurina and, based on the position of the genus Philonema (subfamily Philoneminae) forming a sister group to Skrjabillanidae (thus Philoneminae should be elevated to Philonemidae), the paraphyly of the Philometridae. Comparison of a large number of sequences of representatives of the latter family supports the paraphyly of the genera Philometra, Philometroides and Dentiphilometra. The validity of the newly included genera Afrophilometra and Carangi- nema is not supported. These results indicate geographical isolation has not been the cause of speciation in this parasite group and no coevolution with fish hosts is apparent. On the contrary, the group of South-American species ofAlinema , Nilonema and Rumai is placed in an independent branch, thus markedly separated from other family members.
    [Show full text]
  • Redescription and Molecular Characterisation Of
    Russian Journal of Nematology, 2019, 27 (1), 57 – 66 Redescription and molecular characterisation of Comephoronema werestschagini Layman, 1933 (Nematoda: Cystidicolidae) from the endemic Baikal fish Cottocomephorus grewingkii (Dybowski, 1874) (Scorpaeniformes: Cottocomephoridae) with some comments on cystidicolid phylogeny Sergey G. Sokolov, Ekaterina L. Voropaeva and Svetlana V. Malysheva Centre of Parasitology, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii Prospect, 33, Moscow, 119071, Russia e-mail: [email protected] Accepted for publication 12 September 2019 Summary. The nematode Comephoronema werestschagini (Chromadorea: Cystidocolidae) is redescribed from the Baikal yellowfin Cottocomephorus grewingkii (Dybowski, 1874). Important morphological features, such as the presence of four submedian cephalic papillae, four well developed bilobed sublabia, two large lateral pseudolabia, pairs of rounded deirids, as well as the position of phasmids are reported for the first time in this species. The SSU rDNA-based phylogeny of the cystidicolids is defined according to the sequences obtained for C. werestschagini, C. oshmarini and Capillospirura ovotrichuria. The polyphyly of the Cystidocolidae is herein confirmed. All three studied species appear as members of Cystidicolidae s. str. clade; however, C. werestschagini and C. oshmarini are not phylogenetically related. Key words: 18S rDNA, Capillospirura ovotrichuria, Cystidicolidae, nematodes, phylogeny, SEM. The genus Comephoronema Layman, 1933 scorpaeniform fishes, but a number of authors have (Nematoda: Chromadorea: Cystidicolidae) includes noticed this species in some other Baikal fishes, in five species of nematodes, parasitic in freshwater particular Brachymystax lenok (Pallas, 1773) fish of Eurasia, as well as some marine fish of the (Salmonidae), Lota lota (Linnaeus, 1758) (Lotidae) and Atlantic and Antarctic Oceans (Moravec et al., Thymallus arcticus (Pallas, 1776) (Salmonidae) s.
    [Show full text]
  • View/Download
    SILURIFORMES (part 10) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 25.0 - 13 July 2021 Order SILURIFORMES (part 10 of 11) Family ASPREDINIDAE Banjo Catfishes 13 genera · 50 species Subfamily Pseudobunocephalinae Pseudobunocephalus Friel 2008 pseudo-, false or deceptive, referring to fact that members of this genus have previously been mistaken for juveniles of various species of Bunocephalus Pseudobunocephalus amazonicus (Mees 1989) -icus, belonging to: Amazon River, referring to distribution in the middle Amazon basin (including Rio Madeira) of Bolivia and Brazil Pseudobunocephalus bifidus (Eigenmann 1942) forked, referring to bifid postmental barbels Pseudobunocephalus iheringii (Boulenger 1891) in honor of German-Brazilian zoologist Hermann von Ihering (1850-1930), who helped collect type Pseudobunocephalus lundbergi Friel 2008 in honor of John G. Lundberg (b. 1942), Academy of Natural Sciences of Philadelphia, Friel’s Ph.D. advisor, for numerous contributions to neotropical ichthyology and the systematics of siluriform and gymnotiform fishes Pseudobunocephalus quadriradiatus (Mees 1989) quadri-, four; radiatus, rayed, referring to four-rayed pectoral fin rather than the usual five Pseudobunocephalus rugosus (Eigenmann & Kennedy 1903) rugose or wrinkled, referring to “very conspicuous” warts all over the skin Pseudobunocephalus timbira Leão, Carvalho, Reis & Wosiacki 2019 named for the Timbira indigenous groups who live in the area (lower Tocantins and Mearim river basins in Maranhão, Pará and
    [Show full text]
  • Redalyc.Peces De La Zona Hidrogeográfica De La Amazonia
    Biota Colombiana ISSN: 0124-5376 [email protected] Instituto de Investigación de Recursos Biológicos "Alexander von Humboldt" Colombia Bogotá-Gregory, Juan David; Maldonado-Ocampo, Javier Alejandro Peces de la zona hidrogeográfica de la Amazonia, Colombia Biota Colombiana, vol. 7, núm. 1, 2006, pp. 55-94 Instituto de Investigación de Recursos Biológicos "Alexander von Humboldt" Bogotá, Colombia Disponible en: http://www.redalyc.org/articulo.oa?id=49170105 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Biota Colombiana 7 (1) 55 - 94, 2006 Peces de la zona hidrogeográfica de la Amazonia, Colombia Juan David Bogotá-Gregory1 y Javier Alejandro Maldonado-Ocampo2 1 Investigador colección de peces, Instituto de Investigación en Recursos Biológicos Alexander von Humboldt, Claustro de San Agustín, Villa de Leyva, Boyacá, Colombia. [email protected] 2 Grupo de Exploración y Monitoreo Ambiental –GEMA-, Programa de Inventarios de Biodiversidad, Instituto de Investigación en Recursos Biológicos Alexander von Humboldt, Claustro de San Agustín, Villa de Leyva, Boyacá, Colombia. [email protected]. Palabras Clave: Peces, Amazonia, Amazonas, Colombia Introducción La cuenca del Amazonas cubre alrededor de 6.8 especies siempre ha estado subvalorada. Mojica (1999) millones de km2 en la cual el río Amazonas, su mayor registra un total de 264 spp., recientemente Bogotá-Gregory tributario, tiene una longitud aproximada de 6000 – 7800 km. & Maldonado-Ocampo (2005) incrementan el número de Gran parte de la cuenca Amazónica recibe de 1500 – 2500 especies a 583 spp.
    [Show full text]
  • Leptodactylus Pentadactylus Miriam M
    University of Richmond UR Scholarship Repository Biology Faculty Publications Biology 2012 Leptodactylus pentadactylus Miriam M. Heyer W. R. Heyer Rafael O. de Sá University of Richmond, [email protected] Follow this and additional works at: http://scholarship.richmond.edu/biology-faculty-publications Part of the Biology Commons, Population Biology Commons, Terrestrial and Aquatic Ecology Commons, and the Zoology Commons Recommended Citation Heyer, M.M., W.R. Heyer, and Rafael O. de Sá. "Leptodactylus pentadactylus." Catalogue of American Amphibians and Reptiles, January 15, 2010, 868.1-68.9. This Article is brought to you for free and open access by the Biology at UR Scholarship Repository. It has been accepted for inclusion in Biology Faculty Publications by an authorized administrator of UR Scholarship Repository. For more information, please contact [email protected]. 887.1 AMPHIBIA: ANURA: LEPTODACTYLIDAE Leptodactylus pentadactylus Catalogue of American Amphibians and Reptiles. Heyer, M.M., W.R. Heyer, and R.O. de Sá. 2011. Leptodactylus pentadactylus . Leptodactylus pentadactylus (Laurenti) Smoky Jungle Frog Rana pentadactyla Laurenti 1768:32. Type-locality, “Indiis,” corrected to Suriname by Müller (1927: 276). Neotype, Nationaal Natuurhistorisch Mu- seum (RMNH) 29559, adult male, collector and date of collection unknown (examined by WRH). Rana gigas Spix 1824:25. Type-locality, “in locis palu - FIGURE 1. Leptodactylus pentadactylus , Brazil, Pará, Cacho- dosis fluminis Amazonum [Brazil]”. Holotype, Zoo- eira Juruá. Photograph courtesy of Laurie J. Vitt. logisches Sammlung des Bayerischen Staates (ZSM) 89/1921, now destroyed (Hoogmoed and Gruber 1983). See Nomenclatural History . Pre- lacustribus fluvii Amazonum [Brazil]”. Holotype, occupied by Rana gigas Wallbaum 1784 (= Rhin- ZSM 2502/0, now destroyed (Hoogmoed and ella marina {Linnaeus 1758}).
    [Show full text]