Missouri Animals Yellowbelly water snake   (Nerodia erythrogaster flavigaster) Chordate: Vertebrate: Reptile: Serpentia: Colubridae Native North American snake Habitat: sloughs, swamps, lakes, ponds.. Diet: fish, toads, frogs, tadpoles, salamanders, crayfish.. ID Features: dark upper body, yellow underbelly. Natural History: The yellowbelly water snake is a medium-bodies snake that grows to 4' in length..

The graphics and text are from: The Amphibians and Reptiles of Missouri by Tom R. Johnson, Missouri Department of Conservation, ©1992