Protobothrops jerdonii xanthomelas

Protobothrops jerdonii xanthomelas, commonly known as the red spotted pitviper, is a venomous pitviper subspecies endemic to China.
Description.
Adults may attain a total length of , which includes a tail 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).