The Sanctuary with 52 species of reptiles is rich in terms of number of species. Out of the 29 species of snakes observed, 5 species belong to the blind snake group, 16 are colubird, 2 are boas, 2 are elapids and 4 are viperids. Among the blind snakes, the worm snakes were represented by 4 species of typhlops. Ampheiesma beddomei, a rare snake endemic to Western Ghats and the saw scaled viper, Echis carinata are present. The agamids in Chinnar are widely distributed. Geckoella collagalensis, a rare gecko is also recorded from the Sanctuary.