The body of this young, venomous Water Moccasin is very thick for its length, and has a relatively short, thick tail. They range in length from 30 – 48 inches (Conant and Collins, 1998) and may be quite heavy bodied as adults. Plainbelly water snakes are a medium sized Iowa snake. Plain-bellied watersnakes are large, heavy bodied snakes that are usually found in, near, or above (on tree branches or shrubs) water, similar to diamondback watersnakes. Some populations have light crossbars with dark borders down their back. The plaiin-bellied watersnake is a medium-sized, heavy-bodied, dark-colored, semiaquatic snake with a plain yellow belly. Description 4 Adults are 24–40 inches (76–122 cm) in total length, and can reach up to 55 inches in some states such as Kansas. Notice that the head is also thick and blocky. The Plain-bellied water snake is a nonvenomous snake native to the United States.

These snakes can vary in color from brown to gray, to olive green, with dark-colored blotching down the … The plain-bellied water snake is heavy-bodied, and gets to be about 2-5 feet long when full-grown. The plain-bellied watersnake is not a protected species in Texas and can be legally collected with a hunting license. In western Oklahoma they are called blotched watersnakes because their adult coloration is considerably lighter.
Adult plainbelly water snakes have a dark brown or black dorsum with no markings, even when wet.

Nerodia erythrogaster, commonly known as the plain-bellied water snake or plainbelly water snake, is a familiar species of mostly aquatic, nonvenomous, colubrid snake endemic to the United States. This species gets its common name because it has no patterning on its underside.
It is found throughout southeastern Missouri and …

A harmless snake the same length would be much more slender and would have a much longer, thinner tail (see below). It’s a plain reddish-brown, brown, greenish, or gray in color, becoming lighter on sides.

Texas Distribution: In Texas, the two subspecies of Nerodia erythrogaster , are found throughout much of Texas, save the western half of the Panhandle and the most arid regions of the western Trans-Pecos.