The Southern Desert Horned Lizard (Phrynosoma platyrhinos calidiarum) basking in the sun, encountered en route to Horn Toad Peak (named after him a short while later) and
Little Pyramid Peak.
Redstone area of Lake Mead NRA, Nevada. Late March 2008.
These lizards are often called horn toads. Their diet consists mostly of ants and they often sit by ant hills waiting for their prey to walk by.
Besides the Desert Horned Lizard, there are no other species of horned lizards living in southern Nevada.