Abstract
The colubrid snake genus Thermophis is endemic to higher altitudes on the Qinghai-Xizang Plateau of China. It has been little studied and remains poorly understood. Until Guo et al.’s (2008) description of T. zhaoermii, Thermophis had been monotypic, containing only T. baileyi (Wall 1907). Here, a detailed comparison of external characters, skull and hemipenial morphology in T. baileyi and T. zhaoermii is presented. Both species are sexually dimorphic, and clearly distinct from one another in external, skull and hemipenial characters. An expanded characterization of the recently d e s c r i b e d z h a o e r m i i is provided. Key words: China, morphology, snakes, systematics, ThermophisReferences
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