Cottonmouth:snakes of the Tennessee River grow to between 30-42 inches long, with heavy bodies that resemble those of the rattlesnake. They range from dark brown with obscure markings to orange .
Common Gartersnake: of the Tennessee River are small, growing to a maximum length of 26 inches long. They may be as small as 18 inches as adults. These snakes have alternating bands of dark brown .
Diamond-backed Water Snake:of the Tennessee River grow up to 48 inches long but may be as short as 30 inches as adults. They have gray to brown bodies, yellow bellies, and red, round eyes.
Mississippi Green Water Snake:of the Tennessee River grow to between 30-45 inches long as adults. They’re much greener than other water snakes, with boldly patterned bellies.
Plain-bellied Water Snake: of the Tennessee River grow up to 48 inches long, or four feet. Adults are nearly black, with gray or green tinted scales and very little patterning.
Eastern Ribbonsnake:of the Tennessee River are slender snakes that grow between 18-26 inches long. They’re one of the lightest snakes on our list and have heads that are actually wider .
Western Ribbonsnake:of the Tennessee River grow to between 20-30 inches long and have very long tails. Their bodies are characterized by alternating dark and light stripes that run from the base .
Smooth Earthsnake: of the Tennessee River grow to a maximum length of ten inches long.They have light brown bodies and narrow, slightly darker heads. These snakes spend much of their time underground
Southern Water Snake: of the Tennessee River grow between 22 and 36 inches long. They have medium-heavy bodies marked by alternating dark brown and yellow scales.
Northern Water Snake:of the Tennessee River grow up to 42 inches long, though they may be as short as 24 inches. They’re gray to brown, with red or brown crossbands on their sides and dark blotches.