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Mink Frog vs. Northern Leopard Frog

Both can be spotted green frogs. A Northern Leopard Frog has a pale ridge down each side of the back all the way to the hip, and round dark spots, each ringed with a pale border. A Mink Frog's ridges are missing or partial, and its pattern is an irregular mottling of dark blotches rather than separate round spots. Leopard Frogs wander into fields; Mink Frogs stay in the water.

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Mink Frog

Lithobates septentrionalis

Northern Leopard Frog

Lithobates pipiens
Mink Frog vs. Northern Leopard Frog: comparison sheet with the differences marked

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

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