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1 September 2018 A New Species of Gerrhonotus (Squamata: Anguidae) from the Cuatro Ciénegas Basin, Coahuila, Mexico
Uri Omar García-Vázquez, Arturo Contreras-Arquieta, Marysol Trujano-Ortega, Adrián Nieto-Montes de Oca
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Abstract

A new species of Gerrhonotus, previously confused with G. infernalis, is described from the Cuatro Ciénegas Basin, Coahuila, Mexico. The new species is known from the type locality only and is characterized by the following combination of characters: a cantholoreal scale usually present, a dark mark extending anteriorly from the lower temporal scales through the lower border of the orbit to the preocular or cantholoreal scales, keeled dorsal scales, dorsal body pattern usually composed of cross-bands mostly interrupted or barely discernible on middorsum, usually indiscernible vertical dark bars on the lateral fold (few, faint bars occasionally present), and black flecks scattered on the venter. The new species is geographically closest to G. lugoi and G. infernalis but morphologically most similar to G. infernalis.

© 2018 by The Herpetologists' League, Inc.
Uri Omar García-Vázquez, Arturo Contreras-Arquieta, Marysol Trujano-Ortega, and Adrián Nieto-Montes de Oca "A New Species of Gerrhonotus (Squamata: Anguidae) from the Cuatro Ciénegas Basin, Coahuila, Mexico," Herpetologica 74(3), 269-278, (1 September 2018). https://doi.org/10.1655/HERPETOLOGICA-D-17-00013
Accepted: 3 May 2018; Published: 1 September 2018
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KEYWORDS
Alligator lizards
cryptic species
Gerrhonotinae
taxonomy
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