Razor-backed Musk Turtle vs. Eastern Musk Turtle

The two musk turtles of southeastern Oklahoma; both have a small lower shell and stink when handled. A: Steep, roof-shaped, with a sharp keel down the middle and dark spots in the Razor-backed Musk Turtle; high and rounded, no keel in adults; plain in the Eastern Musk Turtle. B: Spotted with small dark dots, no stripes in the Razor-backed Musk Turtle; two bold pale stripes on each side in the Eastern Musk Turtle. Young Eastern Musk Turtles have a keel too: check the head stripes.

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