Tachymenis peruviana
Tachymenis peruviana, also known as the Peru slender snake, is a species of snake in the family, Colubridae. It is found in Chile, Bolivia, Argentina, and Peru.

References 

Tachymenis
Snakes of South America
Reptiles of Chile
Reptiles of Bolivia
Reptiles of Argentina
Reptiles of Peru
Reptiles described in 1834
Taxa named by Arend Friedrich August Wiegmann