Brown Watersnake vs. Plain-bellied Watersnake

Both are big, heavy watersnakes of the southeastern coastal plain swamps and rivers. A: Rows of big square dark blotches in the Brown Watersnake; plain dark brown or grey, no blotches on adults in the Plain-bellied Watersnake. B: A long head, clearly wider than the neck, plain brown in the Brown Watersnake; a shorter head; the lips plain orange or yellow in the Plain-bellied Watersnake. The Plain-bellied's belly is plain red, orange or yellow; the Brown's is yellowish with brown patches.

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