Lizards

Western Banded Gecko (Coleonyx variegatus ). Nocturnal; most common in rocky areas.

Zebra-tailed Lizard (Callisaurus draconoides ). Diurnal; very common on gravel flats and at bases of sand dunes.

Great Basin Collard Lizard (Crotaphytus bicinctores ). Diurnal; basks on boulders.

Desert Iguana (Dipsosaurus dorsalis ). Diurnal; uncommon on alluvial fans and around bushes in sand dunes.

Long-nosed Leopard Lizard (Gambelia wislizenii ). Diurnal; basks on small rocks and under bushes; rare on rocky slopes.

Desert Horned Lizard (Phrynosoma platyrhinos ). Diurnal; most common in sandy areas; well camouflaged except when basking on small rocks.

Chuckwalla (Sauromalus obesus ). Diurnal; basks on boulders on slopes and in canyons.

Desert Spiny Lizard (Sceloporus magister ). Diurnal; occurs in rocky areas and around large bushes in sand dunes.

Side-blotched Lizard (Uta stansburiana ). Diurnal; occurs in all habitats; most common lizard in the area.

Western Whiptail (Cnemidophorus tigris ). Diurnal; present in all habitats; less common in rocky areas.

Desert Night Lizard (Xantusia vigilis ). Diurnal; secretive; active under cover objects such as logs and brush piles.