Glossy Swampsnake vs. Mississippi Green Watersnake

Both are plain dark snakes of Gulf lowland swamps and the lower Mississippi valley. A: A small, narrow head barely wider than the neck; yellow lips, each lip scale edged dark; the lip scales touch the eye in the Glossy Swampsnake; a big, broad head; a row of small scales between the eye and the lip scales in the Mississippi Green Watersnake. B: Yellow with two neat rows of black half-moons in the Glossy Swampsnake; dark grey or brown behind a yellow throat, with pale yellow half-moons in the Mississippi Green Watersnake. C: Small and slim, to about 2 ft in the Glossy Swampsnake; heavy, to 4 ft in the Mississippi Green Watersnake.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

More comparisons

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