Arkansas Game & Fish Commission

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Wildlife & Conservation

Diamondback Water Snake

Range

Coastal Plain, Mississippi Delta and the valleys of the Arkansas and White rivers.

Description

Keeled scales. Head and body can be light brown, yellowish or olive. A series of black crossbars with light edges forms a chain-like pattern on the back. The belly is cream or yellowish with scattered black or brown crescent-shaped spots. Young are patterned like adults. Adults average 30-48 inches in length.

Habitat and Habits

Found in a variety of wetland habitats: swamps, sloughs, marshes, oxbow lakes, rivers and streams. Active March-October; active at night during hot weather. Breeds April-May; 13-62 young are born August-October. Eats fish and amphibians. Like other water snakes, when threatened it will flatten the head, bite viciously and discharge a foul-smelling musk from the vent.