Salt Marsh Snake
The Salt Marsh Snake, Nerodia clarkii, is a mostly aquatic, non-venomous, colubrid snake found in the southern United States. It is mainly found in the brackish salt marshes along the Gulf of Mexico from Florida to Texas. There is also a population of salt marsh snakes in northern Cuba.
Salt Marsh Snakes grow from 15 to 30 inches in length, and are typically a brown to olive green in color, with tan to yellow stripes down the length of the back. Their underside is brown, with rows of dark spots down the center. It has a large, flat head and fairly heavy body.