A small, little-known viper, the Alburzi viper (Vipera eriwanensis) was originally described from one specimen in 1933, and only one known author has since tried to adequately describe this snake.

The Alburzi viper typically has a grey to brown body, decorated with 54 to 78 zig-zag bands extending from the neck to the tip of the tail. It has a higher number of scales on the head, underside and back than other similar vipers in its range. However, the Alburzi viper is extremely variable in its scale numbers and patterning, probably due to varying local conditions.