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Cumberland Plateau Salamander vs. Northern Slimy Salamander

The two look nearly the same and meet across the Cumberland Plateau (Northern Slimy records in all 11 of the Cumberland Plateau Salamander's one-degree squares); in a few places they cannot be told apart without genetics, so place helps: the Cumberland Plateau Salamander lives only in the south-eastern mountains. A: Pale grey, clearly lighter than the belly in the Cumberland Plateau Salamander; dark, about as dark as the belly in the Northern Slimy Salamander. B: Small white spots on the back, bigger ones low on the sides in the Cumberland Plateau Salamander; larger spots, scattered thickly over the back and sides in the Northern Slimy Salamander. Males of both have a round gland under the chin, larger in the Cumberland Plateau.

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Cumberland Plateau Salamander

Plethodon kentucki

Northern Slimy Salamander

Plethodon glutinosus
Cumberland Plateau Salamander vs. Northern Slimy Salamander: comparison sheet with the differences marked

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

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