Field Guide

The western pygmy rattlesnake is small and colorful, with a slender tail and tiny rattle. Its vibrating rattle is a faint buzz that sounds like a grasshopper. In Missouri, it occurs in the eastern Ozarks and in some counties bordering Arkansas.

The western mudsnake is a harmless swamp dweller of Missouri's Bootheel lowlands. It is burdened with misinformation and imaginative folklore. But it turns out that fact is more interesting than fiction.

The eastern hog-nosed snake is a nonvenomous snake that is highly variable in color and pattern. It has an upturned snout and can hiss loudly and spread its neck like a cobra. If this defense fails, the snake may thrash around, open its mouth, roll over, and play dead.

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 western wormsnake is a small, two-toned snake that lives in wooded areas or rocky hillsides. It is usually purplish brown above and salmon pink on the belly and lower sides. It is found statewide, except for the Mississippi Lowlands.

Prairie ring-necked snakes are easily recognizable by their small size, uniform dark color on the back, bright yellow-orange belly, and distinct yellow ring around the neck. Secretive, but common nearly statewide.

Missouri’s largest venomous snake, the timber rattlesnake, is dangerously venomous, but there are few cases of rattlesnake bites in our state. It frequents rough country, is mostly nocturnal in summer, and few Missourians ever encounter it.

The western chicken turtle is a small to medium-sized turtle with an oval shell and extremely long neck. It is endangered in Missouri, occurring only in the Mississippi Lowlands in the extreme southeastern part of the state.

Although well equipped for an aquatic existence, the Mississippi mud turtle spends as much time wandering about on land as it does in water. Look for it in the Mississippi Lowlands of Missouri’s Bootheel.

The three-toed box turtle usually has three hind toes. Its high-domed shell usually has a top ridge and is olive or brown with faint yellow or orange lines. Look for it in woodland habitats.