Multiple lines of evidence show that Phymaturus agilis Scolaro, Ibargüengoytía & Pincheira-Donoso, 2008 is a junior synonym of Phymaturus spectabilis Lobo & Quinteros, 2005

Fernando Lobo, Félix Benjamín Cruz, Cristian Simón Abdala


Lobo and Quinteros (2005) described Phymaturus spectabilis from Río Negro Province, Argentina.The species was characterized most notably by having a brown background with amore-or-less bilaterally symmetrical pattern of bold, light tan markings, some enclosing smallbrown spots, on the head, limbs, body, and tail. In 2008, Scolaro et al. described P. agilis froma locality 22 km south of the type locality of P. spectabilis. It was reported to differ from P.spectabilis in its nearly uniform brown color and certain morphometric and meristiccharacteristics. In 2009 we collected, at the type locality of P. agilis, five adults (both sexes)with the bold pattern of P. spectabilis, and five adults (both sexes) with the uniform color ofP. agilis. Subsequently, one of the females with the P. spectabilis pattern gave birth to twoindividuals, one of which had the pattern of P. agilis, the other with the pattern of P. spectabilis.Our analyses of specimens assignable to P. agilis and P. spectabilis detected no significantdifferences between individuals with the two patterns for nine morphological variables(including those used to diagnose P. agilis), with overlap in the ranges of the variables forboth patterns. We therefore conclude that P. agilis is a junior synonym of P. spectabilis.

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Revista de la Asociación Herpetológica Argentina. ISSN en línea 1852-5768. Asociación Civil Herpetológica Argentina. Paz Soldán 5100. Piso 1 Dpto 8. Ciudad Autónoma de Buenos Aires.