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Western Glossy Snake vs. Desert Nightsnake

Both are pale blotched snakes of the deserts at night; their records overlap widely. A: No big blotch behind the head in the Western Glossy Snake; a big dark blotch (or pair) on the neck in the Desert Nightsnake. B: Brown blotches edged dark on cream in the Western Glossy Snake; grey-brown blotches on grey in the Desert Nightsnake. The nightsnake is smaller with a flat head and cat-eye pupils.

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Western Glossy Snake

Arizona occidentalis

Desert Nightsnake

Hypsiglena chlorophaea
Western Glossy Snake vs. Desert Nightsnake: comparison sheet with the differences marked

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

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