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Type: Articles
Published: 2010-03-08
Page range: 47–60
Abstract views: 52
PDF downloaded: 25

A new species of Rhinatrema Duméril & Bibron (Amphibia: Gymnophiona: Rhinatrematidae) from Guyana

Department of Zoology, The Natural History Museum, London SW7 5BD, UK
Department of Zoology, The Natural History Museum, London SW7 5BD, UK
Department of Zoology, The Natural History Museum, London SW7 5BD, UK Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester M13 9PT, UK
Department of Vertebrates, Royal Belgian Institute of Natural Sciences, 29 rue Vautier, B-1000 Brussels, Belgium
Amphibia Brazil caecilians French Guiana Guiana Shield herpetology HRXCT Kaieteur South America Suriname systematics taxonomy

Abstract

The first new species of rhinatrematid caecilian in more than 50 years, Rhinatrema shiv sp. nov., is described from Guyana. The type series of 10 specimens differs from the only other species in the genus, R. bivittatum, in having a longer tail, different colour pattern, more acuminate and relatively shorter head, and in several features of the skull and mandible including dentition. Sequence data for 1572 aligned base pairs of mitochondrial DNA are > 15% different between the two species. Rhinatrema shiv is known only from Guyana, and R. bivittatum from French Guiana and far northeastern Brazil. The only reported specimen of the genus from Suriname is not clearly referable to either of the named species.

References

  1. Gower, D. J., Kupfer, A., Oommen, O. V., Himstedt, W., Nussbaum, R. A., Loader, S. P., Presswell, B., Müller, H., Krishna, S. B., Boistel, R. & Wilkinson, M. (2002) A molecular phylogeny of ichthyophiid caecilians (Amphibia: Gymnophiona: Ichthyophiidae): Out of India or out of southeast Asia? Proceedings of the Royal Society B 269, 1563–1569.

    Gower, D. J., Bahir, M., Mapatuna, Y., Pethiyagoda, R., Raheem, D. & Wilkinson, M. (2005) Molecular phylogenetics of Sri Lankan Ichthyophis (Amphibia: Gymnophiona: Ichthyophiidae), with discovery of a cryptic species. The Raffles Bulletin of Zoology, Supplement 12, 153–161.

    Kamei, R. G., Wilkinson, M., Gower, D. J. & Biju, S. D. (2009) Three new species of striped Ichthyophis (Amphibia: Gymnophiona: Ichthyophiidae) from the northeast Indian states of Manipur and Nagaland. Zootaxa 2267, 26–42.

    Kok, P. J. R. & Kalamandeen, M. (2008) Introduction to the taxonomy of the amphibians of Kaieteur National Park, Guyana. Abc Taxa 5, 1–278.

    Kupfer, A. (2009) Sexual size dimorphism in caecilian amphibians: analysis, review and directions for future research. Zoology 112, 362–369.

    Nussbaum, R. A. (1977) Rhinatrematidae: a new family of caecilians (Amphibia: Gymnophiona). Occasional Papers of the Museum of Zoology, University of Michigan 682, 1–30.

    Nussbaum, R. A. (1977) Systematics of caecilians (Amphibia: Gymnophiona) of the family Scolecomorphidae. Occasional Papers of the Museum of Zoology, University of Michigan 713, 1–49.

    Nussbaum, R. A. & Hoogmoed, M. S. (1979) Surinam caecilians, with notes on Rhinatrema bivittatum and the description of a new species of Microcaecilia (Amphibia, Gymnophiona). Zoologische Mededelingen 54, 217–235.

    San Mauro, D., Gower, D. J., Oommen, O. V., Wilkinson, M. & Zardoya R. (2004) Phylogeny of caecilian amphibians (Gymnophiona) based on complete mitochondrial genomes and nuclear RAG1. Molecular Phylogenetics and Evolution 33, 413–427.

    ter Steege, H. (2001) National vegetation map of Guyana, Guyana Forestry Commission: Georgetown.

    Taylor, E. H. (1968) The caecilians of the world: A taxonomic review. University of Kansas Press, Lawrence, KS.

    Wake, M. H. & Donnelly, M. A. (2009) A new lungless caecilian (Amphibia: Gymnophiona) from Guyana. Proceedings of the Royal Society B doi:10.1098/rspb.2009.1662.

    Welch, B. L. (1947) The generalization of ‘Student's’ problem when several different population variances are involved. Biometrika 34, 28–35.

    Wilkinson, M. & Nussbaum, R. A. (1997) Comparative morphology and evolution of the lungless caecilian Atretochoana eiselti (Taylor) (Amphibia: Gymnophiona: Typhlonectidae). Biological Journal of the Linnean Society 62, 39–109.

    Wilkinson, M. & Nussbaum, R. A. (2006) Phylogeny and classification of caecilians. Pp. 39–78. In J.-M. Exbrayat (Ed.) Reproductive Biology and Phylogeny of Gymnophiona (caecilians). Science Publishers, Inc., Enfield, New Hampshire, U.S.A.

    Wilkinson, M., Hoogmoed, M. S. & Nussbaum, R. A. (in press) A new species of Microcaecilia (Amphibia: Gymnophiona: Caeciliidae) from Suriname. Herpetologica.

    Zhang, P. & Wake, M. H. (2009) A mitogenomic perspective on the phylogeny and biogeography of living caecilians (Amphibia: Gymnophiona). Molecular Phylogenetics and Evolution 53, 479–491.