Field Guide

The red-eared slider is an attractive aquatic turtle with yellow pinstripes and red ears. It is commonly seen basking on logs or rocks and occurs statewide, except for a few northern counties.

The cottonmouth is named for the cotton-white lining of its mouth, which it opens widely when alarmed. This dangerously venomous, semiaquatic snake occurs in the southeastern corner of Missouri, with a spotty distribution in the Ozark Region.

The eastern musk turtle is one of the world’s smallest turtles. It has a dark, domed upper shell and reduced lower shell. It occurs along our Mississippi River counties and in the southern two-thirds of the state.

The yellow mud turtle is a small, uniformly colored, semiaquatic turtle restricted to certain counties in west-central, northeastern, and southwestern Missouri. It is an endangered species in our state.

A large aquatic turtle with a big pointed head, long thick tail, and small lower shell, the eastern snapping turtle is common throughout the state, anywhere there is permanent water.

The Mississippi green watersnake is a medium-sized, heavy-bodied, dark-colored semiaquatic snake that was once somewhat common in southeastern Missouri. It probably no longer occurs in our state at all.

Dekay's brownsnake is a small, secretive species that prefers moist environments. It can be gray to brown to reddish brown. It usually has a tan stripe running down the back, bordered by two rows of small brown spots. The top of the head is usually dark. Occurs statewide.

The eastern gartersnake and red-sided gartersnake are Missouri's most common gartersnakes. The color is variable, but there are normally three yellowish stripes, one down the back and one on each side. There are narrow black bars between the scales along the upper lip.

A medium-sized, striped snake of wet prairies and marshes, the plains gartersnake occurs mainly in Missouri's north-central and northwestern counties, with isolated populations in and west of the St. Louis area.

Blanding’s turtle has an oval, moderately high-domed upper shell and a long head and neck. This turtle is endangered in Missouri and occurs only in the extreme northern corners of the state.