Black Snake, or Black Racer, a nonpoisonous snake native to the eastern United States. It is a slender snake that reaches a length of five to six feet (1.5 to 1.8 m). The upper surface of the adult is shiny black and the lower surface is slate-colored. The black snake lives in hollow stumps and in holes of rock piles. It is a skilled climber, often reaching the tops of trees in search of birds. The black snake also feeds on insects, rodents, lizards, and frogs. It is sometimes kept as a pet. The blue racer, a subspecies found in the Midwest, is blue with a white belly. ( The name black snake is also given to the pilot snake, or rat snake. which is similar in appearance and habits, but grows to a length of nine feet (2.7 m).
The black snake is Coluber constrictor : blue racer. C. c.foxi ; pilot snake, Elaphe obsoleta. All belong to the family Colubridae.
The red-bellied black snake belongs to the family Elapidae. It is Pseudechis porphyriacus.