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Jefferson Salamander vs. Blue-spotted Salamander

Look at the blue. Small, faint flecks mostly on the limbs and lower sides, on a grey-brown animal with a long snout, means Jefferson; bold blue-white spots crowded over a black animal means Blue-spotted. But much of what is found where they overlap belongs to all-female hybrid lineages that cannot be named by sight — an in-between animal is the Jefferson / Blue-spotted complex, not a species.

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Jefferson Salamander

Ambystoma jeffersonianum

Blue-spotted Salamander

Ambystoma laterale
Jefferson vs. Blue-spotted 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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