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Coast Mountain Kingsnake vs. California Mountain Kingsnake

Split in 2021 on genetics; the two look the same. They meet only around San Francisco Bay and the southern Sierra; range decides. A: Red, black and white rings; the red bordered black in the Coast Mountain Kingsnake; the same in the California Mountain Kingsnake. B: Black in the Coast Mountain Kingsnake; black in the California Mountain Kingsnake. South of San Francisco Bay and in southern California it is the Coast Mountain Kingsnake; the Sierra Nevada and the north, the California Mountain Kingsnake.

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Coast Mountain Kingsnake

Lampropeltis multifasciata

California Mountain Kingsnake

Lampropeltis zonata
Coast Mountain Kingsnake vs. California Mountain Kingsnake: comparison sheet with the differences marked

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

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