Ridge-nosed Rattlesnake vs. Sonoran Lyre Snake
Both live on rocky slopes in the southeastern mountains. A: Broad and triangular with white face lines; a rim on the snout in the Ridge-nosed Rattlesnake; a dark lyre-shaped mark on top of the head; no rim in the Sonoran Lyre Snake. B: Pale crossbars edged dark in the Ridge-nosed Rattlesnake; dark saddles split by pale centres on a slim grey body in the Sonoran Lyre Snake. C: A rattle in the Ridge-nosed Rattlesnake; no rattle in the Sonoran Lyre Snake. Both Ridge-nosed and Twin-spotted Rattlesnakes are protected in Arizona. Venomous: leave rattlesnakes alone and give them room.
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