The genus Oxyrhopus (Serpentes: Dipsadidae: Xenodontinae) in Guyana: morphology, distributions and comments on taxonomy

Considerable confusion exists regarding taxonomy and distributions of Oxyrhopus in northern South America. Specimens and records of Oxyrhopus from Guyana were examined. Oxyrhopus melanogenys, O. occipitalis and O. petola occur in Guyana. Data on morphology and colouration of these species are presen...

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Bibliographic Details
Published in:Papéis avulsos de zoologia (São Paulo) 2009, Vol.49 (36), p.487-495
Main Authors: MacCulloch, Ross D., Lathrop, Amy, Kok, Philippe J. R., Ernst, Raffael, Kalamandeen, Michelle
Format: Article
Language:English
Subjects:
Guyana
Oxyrhopus formosus
Oxyrhopus melanogenys
Oxyrhopus occipitalis
Oxyrhopus petola
Oxyrhopus trigeminus
ZOOLOGY
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Summary:Considerable confusion exists regarding taxonomy and distributions of Oxyrhopus in northern South America. Specimens and records of Oxyrhopus from Guyana were examined. Oxyrhopus melanogenys, O. occipitalis and O. petola occur in Guyana. Data on morphology and colouration of these species are presented. Species distributions and characters to distinguish among the species are discussed. Existe uma considerável confusão sobre a taxonomia e distribuições de Oxyrhopus no norte da América do Sul. Os espécimes e registros de Oxyrhopus da Guyana foram examinados. Oxyrhopus melanogenys, O. occipitalis e O. petola ocorre na Guyana. Os dados de morfologia e coloração destas espécies são apresentados. As distribuições destas espécies e caracteres para distinguir essas espécies são discutidos.
ISSN:0031-1049
1807-0205
1807-0205
DOI:10.1590/S0031-10492009003600001