Pituophis catenifer is a species of nonvenomous colubrid snake endemic to North America. Hognose snake is a common name for several colubrid snake species with upturned snouts. The aquatic garter snake ("Thamnophis atratus") is a species of colubrid snake. The California mountain kingsnake ("Lampropeltis zonata") is a species of nonvenomous colubrid snake. The racer ("Coluber constrictor") is a species of non-venomous colubrid snake. The long-nosed snake ("Rhinocheilus lecontei") is a species of nonvenomous colubrid snake. The night snake ("Hypsiglena torquata") is a species of rear-fanged colubrid snake. The western ground snake ("Sonora semiannulata") is a species of small, harmless colubrid snake. The night snake ("Hypsiglena torquata") is a species of rear-fanged, colubrid snake. The eastern racer ("Coluber constrictor") is a species of non-venomous, colubrid snake. Boiga nigriceps (black-headed cat snake) is a species of colubrid snake from South-East Asia. Chrysopelea ornata is a colubrid snake found in both South and Southeast Asia. The nonvenomous, colubrid snake is indigenous to the central United States. The rare colubrid snake "Platyceps afarensis" is also found here. The nonvenomous, colubrid snake is indigenous to eastern and central North America.