Western Glossy Snake vs. Coast Night Snake

Both are pale, blotched snakes out at night in southern California; their records overlap. A: No big blotch behind the head in the Western Glossy Snake; a big dark blotch (or pair) on the neck in the Coast Night Snake. B: Brown blotches edged dark on cream in the Western Glossy Snake; smaller grey-brown blotches on grey or tan in the Coast Night Snake. C: Round in the Western Glossy Snake; a vertical slit, like a cat's eye in the Coast Night Snake. The night snake is smaller (to 26 in) with a flat head and cat-eye pupils; the glossy snake grows to 5 ft and has round pupils.

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

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