Photos by Chris Brown

Scientific name: Phrynosoma blainvillii

Common name: Coast Horned Lizard

Size: 2.3-4.2 in (5.9-10.6 cm)

Distinguishing characters: A distinctive flat-bodied species; two horns at back of head longer than surrounding spines; two rows of fringed scales down sides; two rows of enlarged pointed scales on margin of lower jaw; yellowish, brown or grey dorsum with contrasting wavy blotches of darker color; pointed scales on dorsum of body; beige or yellow venter with black spotting.

Juveniles: Similar to adults; cranial spines shorter and less pronounced.

Dimorphism: Male has broader tail at base, enlarged postanal scales, and femoral pores; adult females are larger than adult males.

Similar species: Phrynosoma platyrhinos: Has blunter snout; single row of spines on sides of body and lower jaw. Historically occurred along San Jacinto River wash on coastal slope, but it is not known if this population still exists.

Additional notes: Individuals may eject blood from eyes when handled. A gentle species that is easily handled, although may try to push cranial spines into hands while held. Though once common to the entire San Diego area, this species is in decline.