USGS Western Ecological Research Center

Home Who We Are Where We Are What We Do Products Search Outreach Jobs Contacts

A Field Guide to the Reptiles and Amphibians of Coastal Southern California


Photos by Chris Brown

Scientific name: Aspidoscelis tigris stejnegeri

Common name: Coastal Western Whiptail

Size: 2.4-4.6 in (6.0-11.7 cm)

Distinguishing characters: A species with eight light-colored stripes that are often very indistinct, with crossbars in adults suggesting checkered appearance; dark markings on dorsum with yellow, tan or brown background; throat pale with black spots; long tail; enlarged, square scales on venter; dorsal scales fine and granular; tongue is forked and flicked continually.

Juveniles: Similar to adults, with distal portion of tail bright blue-green; in Orange and Riverside Counties they are striped.

Dimorphism: Enlarged femoral pores in males.

Similar species: Aspidoscelis hyperythra: Striping more distinct; does not appear checkered or spotted; legs and tail cobalt blue in juveniles.

Additional notes: A distinctive species with a jerking gait, rarely sits still. Adults are surprisingly strong when handled and have very sharp claws.


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: webmaster@werc.usgs.gov

References to non-U.S. Department of Interior (DOI) products do not constitute an endorsement by the DOI.

* DOI and USGS link policies apply.