A NEW AQUATIC SNAKE (COLUBRIDAE: PSEUDOERYX) FROM THE LAKE MARACAIBO BASIN, NORTHWESTERN VENEZUELA: A RELIC OF THE PAST COURSE OF THE ORINOCO RIVER

Walter E. Schargel; Gilson Rivas Fuenmayor; Tito R. Barros; Jaime E. Péfaur; Luis F. Navarrete

doi:10.1655/0018-0831(2007)63[236:ANASCP]2.0.CO;2

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Walter E. Schargel,^1,* Gilson Rivas Fuenmayor,² Tito R. Barros,³ Jaime E. Péfaur,⁴ Luis F. Navarrete

¹1Department of Biology, The University of Texas at Arlington, Arlington, TX 76019, USA
²4Museo de Biología, Facultad Experimental de Ciencias, La Universidad del Zulia, Apartado Postal 526
³5Laboratorio de Ecología Animal “B”, Departamento de Biología, Facultad de Ciencias, Universidad de
⁴6Serpentarium, Instituto de Medicina Tropical, Universidad Central de Venezuela, Caracas, Venezuela

^*Correspondence: wschargel@yahoo.com

Abstract

A new species of aquatic snake in the genus Pseudoeryx is described from the Lake Maracaibo Basin in northwestern Venezuela. The new species differs from P. plicatilis, the only other species in the genus, by having a nuchal band, a distinctive ventral coloration, the relative size of the genial plates and having different maxillary dentition. This discovery further supports paleogeographic reconstructions of the course of a proto-Orinoco/Amazon river.

Citation Download Citation

Walter E. Schargel, Gilson Rivas Fuenmayor, Tito R. Barros, Jaime E. Péfaur, and Luis F. Navarrete "A NEW AQUATIC SNAKE (COLUBRIDAE: PSEUDOERYX) FROM THE LAKE MARACAIBO BASIN, NORTHWESTERN VENEZUELA: A RELIC OF THE PAST COURSE OF THE ORINOCO RIVER," Herpetologica 63(2), 236-244, (16 June 2007). https://doi.org/10.1655/0018-0831(2007)63[236:ANASCP]2.0.CO;2

Published: 16 June 2007

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