Nonvenomous snakes include water snakes and land snakes, such as the brown water snake, banded water snake, mud snake, Eastern Indigo snake and scarlet kingsnake. Nonvenomous snakes vary widely in their appearances, habitats and sizes. Some closely resemble poisonous snakes, and even live in close proximity of them, while others are as gentile and nonaggressive as they appear.
Brown water snakes are among the largest but most docile of all nonvenomous snakes. These snakes may reach up to 4 feet in length, and there is little difference in adult size between males and females. These snakes have chunky patterns atop brown coats and chocolate-brown, camouflaged eyes. Brown water snakes consume fish and insects and can climb trees as well as they swim. These snakes live in the southeastern portion of the United States and bite only when scared and threatened. Banded water snakes have faint banded patterns over dark background coats that are reddish-brown, brown or black in color. These snakes live in salt marshes and grass ditches. They often reside near water and may occur in groups in swamps, ponds, streams and rivers. Mud snakes are also relatively large; they reach full-grown heights of 6 feet or more and have smooth and shiny coats. These snakes live in swamps, ponds and marsh habitats.