The snake fanna of Pozuzo (Peru) (Reptilia: Serpentes). - Snakes occurring in Pozuzo (823 m above sea level, Departamento Pasco, Peru) are mentioned, including material of the herpetological collection of the health station of Pozuzo being collected between 1993 and 1997, and material obtained by own fieldwork. The snake fauna of Pozuzo comprehends 23 species. Intensive agriculture and cattle breeding threatens the snake fauna.