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One-toed Amphiuma vs. Three-toed Amphiuma

Three-toed Amphiumas live in the same swamps along the Mississippi coast. A: One toe on each tiny leg in the One-toed Amphiuma; three toes on each tiny leg in the Three-toed Amphiuma. B: The same dark colour as the back, no throat patch in the One-toed Amphiuma; sharply paler grey than the back, with a dark throat patch in the Three-toed Amphiuma. Adult One-toed Amphiumas are under 13 in; Three-toed grow to over 2 ft.

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One-toed Amphiuma

Amphiuma pholeter

Three-toed Amphiuma

Amphiuma tridactylum
One-toed Amphiuma vs. Three-toed Amphiuma: comparison sheet with the differences marked

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

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