DOCSLIB.ORG

ISZ-532 Souza E Lima Et Al.Indd

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Iheringia, Série Zoologia DOI: 10.1590/1678-476620141043299307 Sexual dimorphism in Amphisbaena nigricauda (Reptilia, Squamata, Amphisbaenidae) from Southeastern Brazil Francco A. N. de Souza e Lima¹, João Luiz Gasparini2, Antonio de Padua Almeida3, Marcos V. C. Vital4 & Tamí Mott4 1. Instituto de Biociências, Universidade Federal de Mato Grosso, 78060-900, Cuiabá, MT, Brazil. 2. Departamento de Ecologia e Oceanografia, Universidade Federal do Espírito Santo, 29060-900Vitória, ES, Brazil. 3. Instituto Chico Mendes de Conservação da Biodiversidade – Reserva Biológica de Comboios, 29900-970, Linhares, ES, Brazil 4. Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, 57072-970 Maceió, AL, Brazil. ([email protected]) ABSTRACT. Amphisbaena nigricauda Gans, 1966 is a small, poorly known amphisbaenid endemic to the restinga of the states of Espírito Santo and Bahia, Brazil. We analyze 178 specimens collected in Vitória municipality, state of Espírito Santo, Brazil, to investigate whether this species show sexual dimorphism in pre-cloacal pores and in morphological characters. Sex was determined by a ventral incision and direct inspection of gonads. A PCA analysis was performed to generate a general body size measurement. A T test and the non-parametric Mann-Whitney test were used to assess whether this species show sexual dimorphism on five morphometric and five meristic characters, respectively. Sex could not be determined in 36 specimens because they were mutilated in the posterior portion of their bodies. The diagnosis of the species is redefined based on this sample size: the smallest number of body annuli changes from 222 to 192, the number of dorsal and ventral segments in an annulus in the middle of the body changes to 9–11/13–16 (instead of 10/16), and the autotomic tail annulus lies between annulus 7–10 (instead of 6–9). The number of tail annuli remained within the known range of variation of the species (19–24). None of the 80 females analyzed showed pre-cloacal pores, whereas within males 59 out of 62 specimens displayed four and two specimens displayed five pre-cloacal pores. A single male did not possess pre-cloacal pores, but showed irregular scales on its cloacal region. Sex-based difference based on presence or absence of pre-cloacal pores as well as males with wider head was seen in other Neotropical amphisbaenids. However, a pattern of body size differences between males and females has not been identified so far in the few amphisbaenid species studied in this regard. Further studies on this taxonomic group are still needed to elucidate the existence of general patterns of sexual dimorphism and to identify the selective pressures driving these patterns. KEYWORDS. Amphisbaenia, Espírito Santo, restinga, sexual dimorphism. RESUMO. Dimorfismo sexual em Amphisbaena nigricauda (Reptilia, Squamata, Amphisbaenidae) do Sudeste do Brasil. Amphisbaena nigricauda Gans, 1966 é uma pequena anfisbênia pouco conhecida endêmica da restinga dos estados do Espírito Santo e Bahia, Brasil. Analisamos 178 indivíduos coletados no município de Vitória, Espírito Santo, Brasil, para verificar se esta espécie apresenta dimorfismo sexual nos poros pré- cloacais e em caracteres morfológicos. O sexo foi determinado por uma incisão ventral e inspeção direta das gônadas. Uma análise de PCA foi realizada para gerar uma medida geral do tamanho do corpo. O test-T e o teste de Mann-Whitney não paramétrico foram utilizados para avaliar se esta espécie apresenta dimorfismo sexual em cinco caracteres morfométricos e cinco merísticos, respectivamente. O sexo não pode ser determinado em 36 indivíduos porque eles estavam mutilados na parte posterior do corpo. O diagnóstico da espécie é redefinido com base nesta amostra: o menor número de anéis corporais alterou de 222 para 192, o número de segmentos dorsal e ventral em um anel no meio do corpo mudou de 9-11/13-16 (ao invés de 10/16), e o anel autotômico na cauda encontra-se entre 7-10 (ao invés de 6-9). O número de anéis caudais permaneceu dentro do intervalo de variação conhecida para a espécie (19-24). Nenhuma das 80 fêmeas analisadas apresentou poros pré-cloacais, enquanto que, dentro os 62 machos, 59 apresentaram quatro e dois indivíduos cinco poros pré-cloacais. Um único macho não tinha poros pré-cloacais, mas apresentava escamas irregulares em sua região cloacal. Diferença sexual quanto à presença ou ausência de poros pré-cloacais, assim como machos apresentando cabeças mais largas que a fêmeas, foi observada em outros anfisbenídeos neotropicais. No entanto, um padrão de diferenças de tamanho corporal entre machos e fêmeas não tinha sido identificado até agora nas poucas espécies de anfisbênias estudadas. Outros estudos com este grupo taxonômico ainda são necessários para elucidar a existência de padrões gerais de dimorfismo sexual e identificar as pressões seletivas que resultam estes padrões. PALAVRAS-CHAVE. Anfisbênias, Espírito Santo, restinga, dimorfismo. Amphisbaenia is a monophyletic group (TOWNSEND and ecology are poorly known (VEGA, 2001; NAVEGA- et al., 2004) of fossorial reptiles (Squamata) represented GONÇALVES, 2009). The typically small number of known by 184 taxa (UETZ, 2014). Among the six families (VIDAL specimens also limits knowledge of morphological variation et al., 2008), the Amphisbaenidae include the majority in many species, including sex-based differences. (n = 169, 91.8%) of amphisbaenian species (UETZ, 2014) The morphometric studies of amphisbaenids that distributed mainly in Africa, Central and South America have been performed indicate that sexual dimorphism may (STRÜSSMANN & MOTT, 2009). Brazil harbors the highest be common. WEbb et al. (2000) compared total length and diversity of amphisbaenians worldwide (MOTT & VIEITES, head width of two African species Monopeltis anchietae 2009) with 69 species currently catalogued in the country (Bocage, 1873) and Zygaspis quadrifrons (Peters, 1862) (BÉRNILS & COSTA, 2012; ROBERTO et al., 2014). (Amphisbaenidae), observing that females of Monopeltis Due to amphisbaenians’ fossorial habits, collecting have wider head than males and females of Zygaspis have specimens is frequently difficult. Consequently, the larger body than males. Conversely, GIL et al. (1993) descriptions of many species are based on a limited number and MÁRTIN et al. (2012) observed that males of Blanus of specimens and almost all aspects of their basic biology cinereus (Vandelli, 1797) (Blanidae) and Trogonophis Iheringia, Série Zoologia, Porto Alegre, 104(3):299-307, 30 de setembro de 2014 300 SOUZA E LIMA et al. wiegmanni Kaup, 1830 (Trogonophiidae) respectively mm) endemic to the states of Espírito Santo and Bahia, have wider head than females. For Bipes biporus (Cope, Brazil (DIAS & ROCHA, 2005; SILVA-SOARES et al., 2011). 1894) (Bipedidae), head shape does not differ between The type series consists of three specimens (a female, sexes (KEARNEY, 2003). For Neotropical amphisbaenids, a juvenile and a male) collected in 1964 at Sooretama sex-based morphological differences were investigated Refuge (now the Reserva Biológica de Sooretama – Fig. for Amphisbaena alba Linnaeus, 1758 (COLLI & ZAMBONI, 1) in the municipality of Linhares (19°00’S, 40°08’W), 1999); Amphisbaena kingii (Bell, 1833) and Amphisbaena state of Espírito Santo, Brazil. A large series of this species munoai Klappenbach, 1960 (BALESTRIN & CAPPELLARI, was obtained in the municipality of Vitória, Espírito Santo 2011); Amphisbaena ibijara Rodrigues, Andrade & Lima, State by one of the authors (JLG) - one of the specimens 2003 and Leposternon polystegum (Duméril, 1851) (GOMES from this series was used to extend the species known et al., 2009); Leposternon wuchereri (Peters, 1879) and distribution ca. 135 km southeast (SILVA-SOARES et al., Leposternon microcephalum Wagler, 1824 (FILOGONIO et al., 2011). Here, we use this series of 178 specimens to analyze 2009); and Amphisbaena prunicolor (Cope, 1885) (MACIEL variation in morphological characters and to assess sex- et al., 2012). These studies generally found that females are based differences in this poorly known species. larger than males (exception to Leposternon microcephalum whereas total length do not differ, and L. polystegum MATERIAL AND METHODS whereas males are larger than females), following the same pattern found in other squamate reptiles (SHINE, 1994). All specimens of Amphisbaena nigricauda were Another sexual dimorphism detected in amphisbaenids collected from July 2005 to November 2006 when vegetation is related to the presence/absence of pre-cloacal pores: was suppressed by bulldozers during expansion of airport in contrast to males some female amphisbaenids such as facilities in the restinga (coastal sand-dune vegetation) of Amphisbaena kingii (VEGA, 2001), A. dubia L. Müller, 1924, Praia de Camburi (20°16’16”S, 40°16’35”W), Vitória, A. heathi Schmidt, 1936 (VANZOLINI, 2002), A. uroxena Espírito Santo, Brazil (Fig. 1). Vitória municipality Mott, Rodrigues, Freitas & Silva, 2008 and A. anaemariae comprises a main area located on an island within a bay, and Vanzolini, 1997 (MOTT et al., 2011) do not show pores. a northern portion located on the mainland, where Camburi Amphisbaena nigricauda Gans, 1966 is a small and is located. The climate is Aw Tropical (KÖPPEN, 1936) with slender amphisbaenid (maximum Snout Vent Length= 105 an annual mean temperature of 23°C and precipitation of Fig. 1. Geographic distribution of Amphisbaena nigricauda Gans, 1966: 1, type locality, Linhares municipality; 2, Vitória
Recommended publications
  • Checklist of Helminths from Lizards and Amphisbaenians (Reptilia, Squamata) of South America Ticle R A

    Checklist of Helminths from Lizards and Amphisbaenians (Reptilia, Squamata) of South America Ticle R A

    The Journal of Venomous Animals and Toxins including Tropical Diseases ISSN 1678-9199 | 2010 | volume 16 | issue 4 | pages 543-572 Checklist of helminths from lizards and amphisbaenians (Reptilia, Squamata) of South America TICLE R A Ávila RW (1), Silva RJ (1) EVIEW R (1) Department of Parasitology, Botucatu Biosciences Institute, São Paulo State University (UNESP – Univ Estadual Paulista), Botucatu, São Paulo State, Brazil. Abstract: A comprehensive and up to date summary of the literature on the helminth parasites of lizards and amphisbaenians from South America is herein presented. One-hundred eighteen lizard species from twelve countries were reported in the literature harboring a total of 155 helminth species, being none acanthocephalans, 15 cestodes, 20 trematodes and 111 nematodes. Of these, one record was from Chile and French Guiana, three from Colombia, three from Uruguay, eight from Bolivia, nine from Surinam, 13 from Paraguay, 12 from Venezuela, 27 from Ecuador, 17 from Argentina, 39 from Peru and 103 from Brazil. The present list provides host, geographical distribution (with the respective biome, when possible), site of infection and references from the parasites. A systematic parasite-host list is also provided. Key words: Cestoda, Nematoda, Trematoda, Squamata, neotropical. INTRODUCTION The present checklist summarizes the diversity of helminths from lizards and amphisbaenians Parasitological studies on helminths that of South America, providing a host-parasite list infect squamates (particularly lizards) in South with localities and biomes. America had recent increased in the past few years, with many new records of hosts and/or STUDIED REGIONS localities and description of several new species (1-3).
  • Karyological Study of Amphisbaena Ridleyi (Squamata, Amphisbaenidae), an Endemic Species of the Archipelago of Fernando De Noronha, Pernambuco, Brazil

    Karyological Study of Amphisbaena Ridleyi (Squamata, Amphisbaenidae), an Endemic Species of the Archipelago of Fernando De Noronha, Pernambuco, Brazil

    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by PubMed Central Genetics and Molecular Biology, 33, 1, 57-61 (2010) Copyright © 2009, Sociedade Brasileira de Genética. Printed in Brazil www.sbg.org.br Short Communication Karyological study of Amphisbaena ridleyi (Squamata, Amphisbaenidae), an endemic species of the Archipelago of Fernando de Noronha, Pernambuco, Brazil Marcia Maria Laguna1, Renata Cecília Amaro2, Tamí Mott3, Yatiyo Yonenaga-Yassuda1 and Miguel Trefaut Rodrigues2 1Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil. 2Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil. 3Instituto de Biociências, Programa de Pós Graduação em Ecologia e Conservação da Biodiversidade, Universidade Federal do Mato Grosso, Cuiabá, MT, Brazil. Abstract The karyotype of Amphisbaena ridleyi, an endemic species of the archipelago of Fernando de Noronha, in State of Pernambuco, Brazil, is described after conventional staining, Ag-NOR impregnation and fluorescence in situ hybrid- ization (FISH) with a telomeric probe. The diploid number is 46, with nine pairs of macrochromosomes (three metacentrics, four subtelocentrics and two acrocentrics) and 14 pairs of microchromosomes. The Ag-NOR is located in the telomeric region of the long arm of metacentric chromosome 2 and FISH revealed signals only in the telomeric region of all chromosomes. Further cytogenetic data on other amphisbaenians as well as a robust phylogenetic hy- pothesis of this clade is needed in order to understand the evolutionary changes on amphisbaenian karyotypes. Key words: Amphisbaena ridleyi, karyotype, Fernando de Noronha, Ag-NOR, FISH with telomeric probes.
  • HERPETOLOGICAL BULLETIN Number 106 – Winter 2008

    HERPETOLOGICAL BULLETIN Number 106 – Winter 2008

    The HERPETOLOGICAL BULLETIN Number 106 – Winter 2008 PUBLISHED BY THE BRITISH HERPETOLOGICAL SOCIETY THE HERPETOLOGICAL BULLETIN Contents RESEA R CH AR TICLES Use of transponders in the post-release monitoring of translocated spiny-tailed lizards (Uromastyx aegyptia microlepis) in Abu Dhabi Emirate, United Arab Emirates Pritpal S. Soorae, Judith Howlett and Jamie Samour .......................... 1 Gastrointestinal helminths of three species of Dicrodon (Squamata: Teiidae) from Peru Stephen R. Goldberg and Charles R. Bursey ..................................... 4 Notes on the Natural History of the eublepharid Gecko Hemitheconyx caudicinctus in northwestern Ghana Stephen Spawls ........................................................ 7 Significant range extension for the Central American Colubrid snake Ninia pavimentata (Bocourt 1883) Josiah H. Townsend, J. Micheal Butler, Larry David Wilson, Lorraine P. Ketzler, John Slapcinsky and Nathaniel M. Stewart ..................................... 15 Predation on Italian Newt larva, Lissotriton italicus (Amphibia, Caudata, Salamandridae), by Agabus bipustulatus (Insecta, Coleoptera, Dytiscidae) Luigi Corsetti and Gianluca Nardi........................................ 18 Behaviour, Time Management, and Foraging Modes of a West Indian Racer, Alsophis sibonius Lauren A. White, Peter J. Muelleman, Robert W. Henderson and Robert Powell . 20 Communal egg-laying and nest-sites of the Goo-Eater, Sibynomorphus mikanii (Colubridae, Dipsadinae) in southeastern Brazil Henrique B. P. Braz, Francisco L. Franco
  • Do Worm Lizards Occur in Nebraska? Louis A

    Do Worm Lizards Occur in Nebraska? Louis A

    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Papers in Herpetology Papers in the Biological Sciences 1993 Do Worm Lizards Occur in Nebraska? Louis A. Somma Florida State Collection of Arthropods, [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/biosciherpetology Part of the Biodiversity Commons, and the Population Biology Commons Somma, Louis A., "Do Worm Lizards Occur in Nebraska?" (1993). Papers in Herpetology. 11. http://digitalcommons.unl.edu/biosciherpetology/11 This Article is brought to you for free and open access by the Papers in the Biological Sciences at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in Herpetology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. @ o /' number , ,... :S:' .' ,. '. 1'1'13 Do Mono Li ••rel,. Occur ill 1!I! ..br .... l< .. ? by Louis A. Somma Department of- Zoology University of Florida Gainesville, FL 32611 Amphisbaenids, or worm lizards, are a small enigmatic suborder of reptiles (containing 4 families; ca. 140 species) within the order Squamata, which include~ the more speciose lizards and snakes (Gans 1986). The name amphisbaenia is derived from the mythical Amphisbaena (Topsell 1608; Aldrovandi 1640), a two-headed beast (one head at each end), whose fantastical description may have been based, in part, upon actual observations of living worm lizards (Druce 1910). While most are limbless and worm-like in appearance, members of the family Bipedidae (containing the single genus Sipes) have two forelimbs located close to the head. This trait, and the lack of well-developed eyes, makes them look like two-legged worms.
  • Origin of Tropical American Burrowing Reptiles by Transatlantic Rafting

    Origin of Tropical American Burrowing Reptiles by Transatlantic Rafting

    Biol. Lett. in conjunction with head movements to widen their doi:10.1098/rsbl.2007.0531 burrows (Gans 1978). Published online Amphisbaenians (approx. 165 species) provide an Phylogeny ideal subject for biogeographic analysis because they are limbless (small front limbs are present in three species) and fossorial, presumably limiting dispersal, Origin of tropical American yet they are widely distributed on both sides of the Atlantic Ocean (Kearney 2003). Three of the five burrowing reptiles by extant families have restricted geographical ranges and contain only a single genus: the Rhineuridae (genus transatlantic rafting Rhineura, one species, Florida); the Bipedidae (genus Nicolas Vidal1,2,*, Anna Azvolinsky2, Bipes, three species, Baja California and mainland Corinne Cruaud3 and S. Blair Hedges2 Mexico); and the Blanidae (genus Blanus, four species, Mediterranean region; Kearney & Stuart 2004). 1De´partement Syste´matique et Evolution, UMR 7138, Syste´matique, Evolution, Adaptation, Case Postale 26, Muse´um National d’Histoire Species in the Trogonophidae (four genera and six Naturelle, 57 rue Cuvier, 75231 Paris Cedex 05, France species) are sand specialists found in the Middle East, 2Department of Biology, 208 Mueller Laboratory, Pennsylvania State North Africa and the island of Socotra, while the University, University Park, PA 16802-5301, USA largest and most diverse family, the Amphisbaenidae 3Centre national de se´quenc¸age, Genoscope, 2 rue Gaston-Cre´mieux, CP5706, 91057 Evry Cedex, France (approx. 150 species), is found on both sides of the *Author and address for correspondence: De´partment Syste´matique et Atlantic, in sub-Saharan Africa, South America and Evolution, UMR 7138, Syste´matique, Evolution, Adoptation, Case the Caribbean (Kearney & Stuart 2004).
  • First Record of Amphisbaena Lumbricalis

    First Record of Amphisbaena Lumbricalis

    Herpetology Notes, volume 10: 19-22 (2017) (published online on 27 January 2017) First record of Amphisbaena lumbricalis (Squamata, Amphisbaenidae) in the state of Pernambuco, Brazil: including a distribution map and soil classification of its occurrence Ana Paula G. Tavares1, José Jorge S. Carvalho2 and Leonardo B. Ribeiro1,* Amphisbaenia is currently represented by 196 species (Vanzolini, 1996; Galdino et al., 2015). In Alagoas, (Uetz and Hošek, 2016) belonging to six families (Vidal A. lumbricalis has been recorded in the municipalities and Hedges, 2009). Amphisbaenidae, the most diverse of Delmiro Gouveia, Piranhas and Traipu, and in the family (178 species), is distributed throughout South municipality of Canindé de São Francisco in Sergipe America and Africa (Gans, 2005; Vidal et al., 2008; state. In the present study, we report a new occurrence of Uetz and Hošek, 2016). Of these, 73 species occur in this worm lizard for the semiarid region of Pernambuco Brazil (Costa and Bérnils, 2015), and 20 in the semiarid state and classify the soil where it occurs. region. Three distribution patterns can be recognised Between July 2009 and March 2014, specimens in these species (Rodrigues, 2003): i) species with of A. lumbricalis were gathered during wild fauna wide distribution in the Caatinga Morphoclimatic rescue missions conducted by the Project to Integrate Domain: Amphisbaena alba, A. pretrei, A. vermicularis, the San Francisco River with the Northern Northeast Leposternon infraorbitale, L. microcephalum and L. Hydrographic Basins (PISF). A total of 477 km of polystegum; ii) species associated with the sand dunes the area (eastern and northern axes of the PISF) were of the middle São Francisco River and adjacent sands: sampled during vegetation suppression and worm A.
  • Reptile Surveys Reveal High Species Richness in Areas Recovering from Mining Activity in the Brazilian Cerrado

    Reptile Surveys Reveal High Species Richness in Areas Recovering from Mining Activity in the Brazilian Cerrado

    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/321245364 Reptile surveys reveal high species richness in areas recovering from mining activity in the Brazilian Cerrado Article in Biologia · November 2017 DOI: 10.1515/biolog-2017-0138 CITATIONS READS 0 565 10 authors, including: Fabrício Hiroiuki Oda Robson Waldemar Ávila Universidade Estadual de Maringá Universidade Regional do Cariri 67 PUBLICATIONS 186 CITATIONS 144 PUBLICATIONS 756 CITATIONS SEE PROFILE SEE PROFILE Leandro Oliveira Drummond Danusy Lopes Federal University of Rio de Janeiro Universidade Federal de Goiás 29 PUBLICATIONS 108 CITATIONS 22 PUBLICATIONS 39 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Avaliação da influência das atividades antrópicas na estruturação de comunidades e populações de vertebrados da Serra do Ouro Branco, Minas Gerais View project Ecology of lizards parasites View project All content following this page was uploaded by Leandro Oliveira Drummond on 23 November 2017. The user has requested enhancement of the downloaded file. Biologia 72/10: 1194—1210, 2017 Section Zoology DOI: 10.1515/biolog-2017-0138 Reptile surveys reveal high species richness in areas recovering from mining activity in the Brazilian Cerrado Fabrício H. Oda1,2,RobsonW.Ávila3, Leandro de O. Drummond4,DanusyL.Santos5, Priscilla G. Gambale5,6, Vinicius Guerra5,6,RaísaRomˆenia S. Vieira7, Tiago S. Vasconcelos 8, Rogério P. Bastos5 &FaustoNomura5 1Centro
  • A New Worm Lizard Species (Squamata: Amphisbaenidae: Amphisbaena) with Non-Autotomic Tail, from Northeastern Brazil

    A New Worm Lizard Species (Squamata: Amphisbaenidae: Amphisbaena) with Non-Autotomic Tail, from Northeastern Brazil

    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/338489241 A New Worm Lizard Species (Squamata: Amphisbaenidae: Amphisbaena) with Non-autotomic Tail, from Northeastern Brazil Article in Journal of Herpetology · January 2020 DOI: 10.1670/19-043 CITATIONS READS 3 925 3 authors: Leonardo B. Ribeiro Samuel Campos Gomides Universidade Federal do Vale do São Francisco (UNIVASF) Universidade Federal do Oeste do Pará 90 PUBLICATIONS 662 CITATIONS 26 PUBLICATIONS 165 CITATIONS SEE PROFILE SEE PROFILE Henrique Caldeira Costa Federal University of Juiz de Fora 96 PUBLICATIONS 943 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Macroecology and Biogeography of Tropical Vertebrates View project Rede PPBio Semiárido/Subprojeto Répteis View project All content following this page was uploaded by Leonardo B. Ribeiro on 10 January 2020. The user has requested enhancement of the downloaded file. A New Worm Lizard Species (Squamata: Amphisbaenidae: Amphisbaena) with Non-autotomic Tail, from Northeastern Brazil Authors: Ribeiro, Leonardo B., Gomides, Samuel C., and Costa, Henrique C. Source: Journal of Herpetology, 54(1) : 9-18 Published By: Society for the Study of Amphibians and Reptiles URL: https://doi.org/10.1670/19-043 BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Complete website, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/terms-o-use.
  • Testicular Cycle of Amphisbaena Mertensii Strauch, 1881 (Squamata: Amphisbaenidae) in Northeastern Argentina

    Testicular Cycle of Amphisbaena Mertensii Strauch, 1881 (Squamata: Amphisbaenidae) in Northeastern Argentina

    Herpetology Notes, volume 10: 141-145 (2017) (published online on 19 April 2017) Testicular cycle of Amphisbaena mertensii Strauch, 1881 (Squamata: Amphisbaenidae) in northeastern Argentina Fernando David Aguirre, Martín Alejandro Ortiz* and Alejandra Beatriz Hernando Introduction In the present study we determined the testicular cycle of Amphisbaena mertensii (Amphisbaenidae) by The perpetuation of species depends mainly on their morphological and histological analysis of gonads and reproductive success, thereby the study of reproductive epididymis in order to provide additional data about its biology is an important matter for understanding the reproductive biology. The information known is based evolution of life-history strategies (Seigel and Ford, on isolated observations of specimens from southeastern 1987; Holycross and Goldberg, 2001). Brazil and Paraguay (Pramuk and Alamillo, 2003; Knowledge of amphisbaenian reproduction is scarce Andrade et al., 2006). Amphisbaena mertensii is an and fragmentary because the diggers and fossorial habits oviparous worm lizard that occurs in northeastern of worm lizards decrease the probability of encounter Argentina, southeastern Brazil and Paraguay (Ribeiro in nature (Andrade et al., 2006). Reproductive data are et al., 2007). Females lay six to eight soft-shelled eggs available for only 12% out of 197 species (Andrade et during spring and the incubation period lasts 59 days al., 2006; Uetz and Hošek, 2017). Published information (Andrade et al., 2006). consists of clutch and eggs sizes, oviposition season, and changes in gonadal sizes (Andrade et al., 2006). Materials and methods The testicular cycles known are based in the external morphology of the vas deferens and variation of testes We analysed 16 preserved males of A.
  • A New Species of Small Amphisbaena (Reptilia: Amphisbaenia: Amphisbaenidae) from Western Amazonian Brazil

    A New Species of Small Amphisbaena (Reptilia: Amphisbaenia: Amphisbaenidae) from Western Amazonian Brazil

    CDD: 598.109.RII A NEW SPECIES OF SMALL AMPHISBAENA (REPTILIA: AMPHISBAENIA: AMPHISBAENIDAE) FROM WESTERN AMAZONIAN BRAZIL Marinus S. Hoogmoedl Teresa C. S. de Avila-Piresl ABSTRACT - Amphisbaena cunhai novo spec. is described on the basis of a series collected in the area of Cachoeira Samuel, rio Jamari, east of Porto Velho, Rondônia, Brazil. It can be distinguished from other (small) amphisbaenids in lowland northern South America by having four large precloacal pores, three supra and three infra labiaIs, one row ofpostgenials, 14-16 dorsal and 14-18 ventral scales per annulus at midbody, a dorsal sulcus, malars in contact with the postmental and the nasalsforming a median suture. A key and the known distribution areas for ali small species ofAmphisbaena in the Amazon region are given. KEY WORDS: Reptilia, Amphisbaena, Amazon basin, Brazil, Distribution. RESUMO - Amphisbaena cunhai novo spec. é descrita com base em uma série coletada na área de Cachoeira Samuel, rio Jamari, a leste de Porto Ve­ lho, Rondônia, Brasil. Distingue-se de outros (pequenos) anfisbenideos das terras baixas do norte da América do Sul por possuir quatro ftrandes poros pré-cloacais, três supra e três infralabiais, uma fileira de posgenianos, 14-16 escamas dorsais e 14-18 ventrais em um anel a meio do corpo, um sulco dor­ sal, malares em contato com a pós-menta! e as nasais formando uma sutura mediana. Uma chave de identificação e a área de distribuição conhecida para todas as pequenas espécies de Amphisbaena da região amazônica são da­ das. PALAVRAS-CHAVE: Reptilia, Amphisbaena, Bacia amazônica, Brasil, Distribuição geográ fica.
  • Lizards, Amphisbaenids and Blind Snakes of Laguna Blanca 1

    Lizards, Amphisbaenids and Blind Snakes of Laguna Blanca 1

    Reserva Natural Laguna Blanca, Departamento San Pedro, PARAGUAY Lizards, Amphisbaenids and Blind Snakes of Laguna Blanca 1 Para La Tierra (Jean-Paul Brouard, Paul Smith) Photos by: Jean-Paul Brouard (JPB) and Paul Smith (PS). (M) = Male, (J) = Juvenile. Produced by: Tyana.Wachter, R. B. Foster and J. Philipp, with the support from Connie Keller and Andrew Mellon Foundation © Para La Tierra [http://www.paralatierra.org], Jean-Paul Brouard [[email protected]], Paul Smith [[email protected]] © Science and Education, The Field Museum, Chicago, IL 60605 USA. [http:/fieldmusuem.org/IDtools/] [[email protected]] Rapid Color Guide # 567 version 1 04/2014 1 Norops meridionalis 2 Polychrus acutirostris 3 Stenocercus caducus 4 Tropidurus cf. xanthochilus (M) POLYCHRIDAE JPB POLYCHRIDAE JPB TROPIDURIDAE JPB TROPIDURIDAE JPB 5 Tropidurus cf. xanthochilus (J) 6 Hemidactylus mabouia 7 Manciola cf. guaporicola 8 Notomabuya frenata TROPIDURIDAE JPB GEKKONIDAE PS SCINCIDAE JPB SCINCIDAE JPB 9 Cercosaura ocellata 10 Cercosaura schriebersii 11 Colobosaura modesta 12 Colobosaura modesta (nuptial) GYMNOPHTHALMIDAE JPB GYMNOPHTHALMIDAE JPB GYMNOPHTHALMIDAE JPB GYMNOPHTHALMIDAE JPB 13 Micrablepharus maximiliani 14 Vanzosaura rubricauda 15 Ameiva ameiva 16 Ameivula abalosi (brown) GYMNOPHTHALMIDAE JPB GYMNOPHTHALMIDAE JPB TEIIDAE PS TEIIDAE JPB Reserva Natural Laguna Blanca, Departamento San Pedro, PARAGUAY Lizards, Amphisbaenids and Blind Snakes of Laguna Blanca 2 Para La Tierra (Jean-Paul Brouard, Paul Smith) Photos by: Jean-Paul Brouard (JPB) and Paul Smith (PS). (M) = Male, (J) = Juvenile. Produced by: Tyana.Wachter, R. B. Foster and J. Philipp, with the support from Connie Keller and Andrew Mellon Foundation © Para La Tierra [http://www.paralatierra.org], Jean-Paul Brouard [[email protected]], Paul Smith [[email protected]] © Science and Education, The Field Museum, Chicago, IL 60605 USA.
  • Aggregative Behaviour in the Fossorial Lizard Amphisbaena Darwinii (Squamata, Amphisbaenidae)

    Aggregative Behaviour in the Fossorial Lizard Amphisbaena Darwinii (Squamata, Amphisbaenidae)

    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by El Servicio de Difusión de la Creación Intelectual Nota Cuad. herpetol. 27 (1): 00-00 (2013) Aggregative behaviour in the fossorial lizard Amphisbaena darwinii (Squamata, Amphisbaenidae) Claudio Borteiro1, Francisco Kolenc1, José Manuel Verdes2 1 Sección Herpetología, Museo Nacional de Historia Natural de Montevideo, 25 de Mayo 582, Montevideo, Uruguay; 2 Área Biofísica, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay. Amphisbaena is a species-rich genus widely dis- tely 0.15 to 0.20 m2 and 0.50 m2 respectively. We tributed in the Neotropics, from Middle America found apparently solitary individuals in most ob- to central-eastern Argentina and Uruguay (Gans, servations (9/16). However, in approximately 40% 2005). The natural history of these fossorial Squama- of the encounters (6/16) we detected more than one ta has been scarcely studied, although several species individual together in the same refuge, being adults, are common in varied biomes. One of these poorly juveniles, or both. On one occasion we observed a known forms is Amphisbaena darwinii Duméril group of seven individuals composed by an adult & Bibron 1839 although being widely distributed male, two adult females and four juveniles. Other in southern and central Uruguay (Gans, 1966). combinations found were two juveniles, an adult This species is a common inhabitant of urban and male and a juvenile, and an adult male plus two suburban areas in this country, including gardens adult females; see also Table 1. We never recorded and backyards where it can be easily found under more than one adult male at the same refuge.