Protobothrops jerdonii xanthomelas

Protobothrops jerdonii xanthomelas is a venomous pit viper subspecies endemic to China.

Description
Adults may attain a total length of 31 in, which includes a tail 5 in long.

The scalation includes 21-23 rows of dorsal scales at midbody, 176-188 ventral scales, 54-67 subcaudal scales, and 7-8 supralabial scales.

Geographic range
Found in Central and southern China, in the provinces of Henan, Shaanxi, Gansu, Sichuan, Guizhou, Hubei, and Guangxi. The type locality given is "Ichang" (=Yichang Shi, Hubei, China).