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.
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Vol. 63 • No. 2