Snakes

Rosy Boa (Lichanura trivirgata ). Nocturnal; diurnal in late evening and morning during spring; during midsummer nocturnal only; in rocky areas to 5,000 ft (1,520 m).

Spotted Leaf-nosed Snake (Phyllorhynchus decurtatus ). Nocturnal; usually present in sandy or gravelly places.

Lyre Snake (Trimorphodon biscutatus ). Nocturnal; in rocky areas to 5,000 ft (1,520 m).