River Cooter vs. Northern Map Turtle

The shell pattern: River Cooter — a pale c-shaped mark or rings on the side plates; Northern Map Turtle — a fine net of pale lines, like a map. The head marks: River Cooter — several yellow stripes, no patch; Northern Map Turtle — a yellow spot or bar behind the eye. The ridge on the shell: River Cooter — no ridge — smooth; Northern Map Turtle — one low, smooth ridge or a ridge with knobs or bumps along it.

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

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Wildsight identifies the reptiles and amphibians of the United States. Every comparison