Twin-spotted Rattlesnake vs. Desert Nightsnake
Both are small, grey, spotted snakes with cat-like pupils in the southeastern mountains. A: Two rows of small dark spots on grey, joining into one row near the tail in the Twin-spotted Rattlesnake; one row of small dark blotches in the Desert Nightsnake. B: A dark stripe behind the eye; no big neck blotches in the Twin-spotted Rattlesnake; a big dark blotch on each side of the neck in the Desert Nightsnake. C: A rattle in the Twin-spotted Rattlesnake; thin and pointed, no rattle in the Desert Nightsnake. Both Ridge-nosed and Twin-spotted Rattlesnakes are protected in Arizona. Venomous: leave rattlesnakes alone and give them room.
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