Trimeresurus tibetanus

Trimeresurus tibetanus, commonly known as the Tibetan bamboo pit viper, is a venomous pit viper species found only in Tibet. No subspecies are currently recognized.

Description
Scalation includes 21 (19 or 20) rows of dorsal scales at midbody, 147-152/145-159 ventral scales in males/females, 46-54/40-48 subcaudal scales in males/females, and 7-9 supralabial scales.

Geographic range
Found in Tibet (Tibet Autonomous Region, China). The type locality given is "Xizang Province, Nielamou District, Quekesumou, altitude 3200 m". In their English translation of Huang's publication, David and Tong (1997) list the type locality as "Tibet", but give "Naylam, Chokesumo" in the summary.