Coastal Plain Cooter vs. River Cooter

Split from the River Cooter; the two grade into each other along the Fall Line (VHS), and old cooters darken, so the place and the water help. A: Plain yellow, no dark marks along the seams in the Coastal Plain Cooter; dark marks along the seams in the River Cooter. B: Upright yellow bars, sometimes forked; no C-shaped mark on the second plate in the Coastal Plain Cooter; a yellow C-shaped mark on the second plate in the River Cooter. C: Fewer than 12 stripes on the head and neck in the Coastal Plain Cooter; many thin yellow stripes in the River Cooter. In Virginia the Coastal Plain Cooter keeps to swamps, millponds and blackwater south of the James; the River Cooter to the big rivers and lakes of the Piedmont.

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

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