desert horned lizard, southern desert horned lizard, phrynosoma platyrhinos calidiarum

animal animalia animals biology boulder calidiarum california creature desert deserts dragon dragons fauna herp herpetofauna herpetology herping herps horn horned horny lizard lizards nature outdoor phrynosoma phrynosomatidae platyrhinos reptile reptiles scale scales scaly southern soutnern spike spikes spikey squamata toad western wild wilderness wildlife zoo zoology