Trimeresurus yunnanensis

Trimeresurus yunnanensis, commonly known as the Yunnan bamboo pitviper, is a venomous pitviper species endemic to China.

Description
The scalation includes 19 (or 21) rows of dorsal scales at midbody, 154-164/150-172 ventral scales in males/females, 61-71/52-65 subcaudal scales in males/females, and 9-11 supralabial scales.

Geographic range
It is found in southern China (Yunnan and southwestern Sichuan). The type locality given is "Tengyueh, Yunnan Province, China" (= Tengchong County).

Taxonomy
Zhao (1995) raised this taxon back up to the level of a full species: T. yunnanensis.