16-50 inches. Gray, orange or tan above with dark gray, reddish brown or brown crossbands that may be offset between the back and sides; underside pale with small dark crescent-shaped markings; head unmarked. The keeled scales are in 21-23 rows.
Common water snakes inhabit sand-bottomed streams and rivers in wooded areas. They give birth to 6-40 young.
Upland portions of the Florida Parishes.