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Eastern Musk Turtle vs. Northern Map Turtle

The shell pattern: Eastern Musk Turtle — plain, no pattern; Northern Map Turtle — a fine net of pale lines, like a map. The head marks: Eastern Musk Turtle — two pale stripes, above and below the eye; Northern Map Turtle — a yellow spot or bar behind the eye. The underside: Eastern Musk Turtle — small, cross-shaped, lots of skin showing; Northern Map Turtle — rigid, covering the underside. The shell height: Eastern Musk Turtle — high and domed, like a helmet; Northern Map Turtle — low and fairly flat.

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Eastern Musk Turtle

Sternotherus odoratus

Northern Map Turtle

Graptemys geographica
Eastern Musk Turtle vs. Northern Map Turtle: comparison sheet with the differences marked

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

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