Field Guide

Missouri's largest snake, the bullsnake may hiss loudly and vibrate its tail when alarmed, but it is nonvenomous. This species is extremely valuable in controlling destructive rodents.

The eastern copperhead is the most common venomous snake in Missouri. Its color varies from grayish brown to pinkish tan, with distinctive hourglass-shaped crossbands.

The eastern yellow-bellied racer is uniformly tan, brown, olive, blue, gray, or nearly black on top, with a yellow, cream, or light blue-gray belly. It occurs nearly statewide. The southern black racer subspecies also lives in the southeastern half of the state.

Blanchard's cricket frog is a nonclimbing member of the treefrog family. It lacks the adhesive toe pads associated with treefrogs. It occurs statewide. The call is a metallic “gick, gick, gick.”

The prairie lizard is a small, gray to brown, rough-scaled lizard common in open forests. It often lives around country homes and rock gardens and on stacks of firewood and split rail fences.

The western slender glass lizard is often called “glass snake” because it is long, slender, and legless, and its tail breaks off easily. But glass lizards are true lizards, with eyelids and ear openings; snakes have neither of these characteristics.

The eastern coachwhip is a long, slender, nonvenomous snake that usually escapes in an explosive burst of speed. In Missouri, it occurs in the Ozark and Ozark border regions.

The western ratsnake, a glossy black snake, is one of Missouri’s largest and most familiar snakes. Its size and dark color make it seem imposing, but it is as harmless to humans as it is bad news for rodents.

The lined snake looks similar to a gartersnake. It is brown to grayish brown, with three lighter-colored stripes down the length of its body and a double row of half-moon-shaped markings along the belly. It occurs mainly in the northwestern part of the state, along the northern border, with a separate population in the St. Louis area.