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Big Bend Patch-nosed Snake vs. Checkered Garter Snake

Both are striped snakes of the valleys of southern Arizona; the garter snake lives near water. A: A pale stripe between two wide dark stripes in the Big Bend Patch-nosed Snake; a checkerboard of black spots between pale stripes in the Checkered Garter Snake. B: No dark neck marks in the Big Bend Patch-nosed Snake; a pale crescent and a big black blotch behind each jaw in the Checkered Garter Snake. C: A big patch-like scale over the snout tip in the Big Bend Patch-nosed Snake; normal snout in the Checkered Garter Snake.

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Big Bend Patch-nosed Snake

Salvadora deserticola

Checkered Garter Snake

Thamnophis marcianus
Big Bend Patch-nosed Snake vs. Checkered Garter 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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