New Species of Lampropeltis (Serpentes: Colubridae) from the Sierra Madre Occidental, México

Robert W. Bryson Jr; James R. Dixon; David Lazcano

doi:10.1670/85-04A

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Robert W. Bryson Jr,^1,* James R. Dixon,² David Lazcano³

¹aDepartment of Biology, Sul Ross State University, Alpine, Texas 79832, USA
²bTexas Cooperative Wildlife Collection, Texas A&M Universtity, College Station, Texas 77843, USA
³cLaboratorio de Herpetología, Universidad Autónoma de Nuevo León, Apartado Postal - 513, San Nicolas

^*Corresponding Author. Present address: 113 Walnut Street. #97, Neptune, New Jersey, USA; rob_bryson2002@yahoo.com

Abstract

We describe a new species of Lampropeltis from the Pacific versant of the Sierra Madre Occidental in western México based on external morphology, scutellation, and molecular data. This species appears to be closely related to Lampropeltis pyromelana and Lampropeltis mexicana. Divergence may have resulted from geographic isolation on the west side of the Continental Divide in the Sierra Madre Occidental and subsequent adaptation to a unique ecological region.

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Robert W. Bryson Jr, James R. Dixon, and David Lazcano "New Species of Lampropeltis (Serpentes: Colubridae) from the Sierra Madre Occidental, México," Journal of Herpetology 39(2), 207-214, (1 June 2005). https://doi.org/10.1670/85-04A

Accepted: 1 January 2005; Published: 1 June 2005

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