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Chihuahuan Nightsnake vs. Sonoran Lyre Snake

Both are slim, blotched night snakes with cat-like pupils in southeastern Arizona. A: A dark collar on the neck in the Chihuahuan Nightsnake; a lyre-shaped mark on top of the head in the Sonoran Lyre Snake. B: Small, solid dark blotches in the Chihuahuan Nightsnake; dark saddles split by pale centres in the Sonoran Lyre Snake.

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Chihuahuan Nightsnake

Hypsiglena jani

Sonoran Lyre Snake

Trimorphodon lambda
Chihuahuan Nightsnake vs. Sonoran Lyre Snake: comparison sheet with the differences marked

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

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