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Chihuahuan Nightsnake vs. Gopher Snake

Both are blotched snakes of southeastern Arizona; young Gopher Snakes are nightsnake-sized. A: Vertical, cat-like in the Chihuahuan Nightsnake; round in the Gopher Snake. B: A dark three-part collar in the Chihuahuan Nightsnake; no collar; a dark line across the head in front of the eyes in the Gopher Snake.

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Chihuahuan Nightsnake

Hypsiglena jani

Gopher Snake

Pituophis catenifer
Chihuahuan Nightsnake vs. Gopher 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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