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Texas Lyre Snake vs. Rock Rattlesnake

Both are grey, banded snakes of Chihuahuan Desert rock slopes with broad heads (they share the mountains of southern New Mexico and the Trans-Pecos). A: Broad, but with no pit between the eye and the nostril; cat-like pupils in the Texas Lyre Snake; broad and triangular, with a pit between the eye and the nostril in the Rock Rattlesnake. B: Thin and pointed, no rattle in the Texas Lyre Snake; a rattle in the Rock Rattlesnake. C: Brown bands, smooth glossy scales in the Texas Lyre Snake; jagged black crossbands, keeled dull scales in the Rock Rattlesnake.

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Texas Lyre Snake

Trimorphodon vilkinsonii

Rock Rattlesnake

Crotalus lepidus
Texas Lyre Snake vs. Rock Rattlesnake: comparison sheet with the differences marked

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

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