Chennai Snake Park snake, annulated sea snake, common wolf snake, common vine snake, striped keelback, checkered keelback, olive keelback, common trinket snake, spectacled cobra, banded sea krait and hook-nosed sea snake. Crocodilian species include the gharial, marsh crocodile, saltwater crocodile, Siamese crocodile, African dwarf crocodile, Nile crocodile and spectacled caiman. Other reptiles at the park include water monitor, Bengal monitor, Indian black turtle, Indian flapshell turtle, Indian star tortoise, spotted rock gecko and South Asian chamaeleon. The snakes are housed in glass-fronted enclosures and the crocodilians and the larger lizards are housed in open-air enclosures protected by parapet walls and wire mesh. The
Banded water snake their patterning is barely discernible. They have flat heads, and are fairly heavy-bodied. If irritated, they release a foul-smelling musk to deter predators. Their appearance leads them to be frequently mistaken for other snakes with which they share a habitat, including the less common, venomous cottonmouth. "Nerodia fasciata" inhabits most freshwater environments such as lakes, marshes, ponds, and streams. It preys mainly on fish and frogs. Using its vomeronasal organ, also called Jacobson's organ, the snake can detect parvalbumins in the cutaneous mucus of its prey. The species is ovoviviparous, giving birth to live young. The brood size varies from