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Oregon Slender Salamander vs. California Slender Salamander

Two worm-like slender salamanders; Oregon Slender in the northern Cascades, California Slender only in the far southwest. A: Black with large bold white blotches on the sides and belly in the Oregon Slender Salamander; dark with fine white speckling (not shown) in the California Slender Salamander. B: A reddish-brown or coppery band in the Oregon Slender Salamander; a reddish or tan stripe, or plain in the California Slender Salamander. Range decides almost every record.

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Oregon Slender Salamander

Batrachoseps wrighti

California Slender Salamander

Batrachoseps attenuatus
Oregon Slender Salamander vs. California Slender 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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