Geographical Range Eastern United States, from Missouri south to Texas
Habitat Streams, creeks, swamps, shores of ponds and lakes
Scientific Name Agkistrodron piscivorus leucostoma
Conservation Status Not listed by IUCN

This pitviper's name refers to the white lining of its mouth, which it gapes at attackers when it feels threatened. Missouri is the northwestern limit of the range for this heavy-bodied snake. Cottonmouths live in two distinct habitats. The more common is the cypress swamps, sloughs and oxbow lakes in southeastern Missouri. The other is the cool, spring-fed rocky creeks and rivers of the Ozarks, where a few scattered populations live.

Did You Know?

This snake is venomous.