Yellowbelly Watersnake Barry Mansell photo.
Adults are heavy-bodied, greenish gray in color with faint to no markings on the back.
The belly, neck, and labial scales are almost uniform yellow. The scales are keeled , and there are 23 dorsal scale rows at midbody. The pupil is round. Juveniles are grayish-brown with distinct dark crossbands and blotches , with pale yellow bellies. Outside of Florida, it is found from eastern Texas east to central Georgia and north to Illinois.