Colorado River Tree Lizard
Urosaurus ornatus symmetricus
- U. o. symetricus – Imperial Co, CA – photo by Jeff Nordland
- U. o. symmetricus – Yuma Co, AZ – photo by Matt Dagrosa (naherp.com)
- U. o. symmetricus – San Bernardino Co, CA – photo by Will Flaxington (naherp.com)
- U. o. symmetricus – San Bernardino Co, CA – photo by Phillip Clevinger (naherp.com)
- U. o. symmetricus – San Bernardino Co, CA – photo by Jonathan Hakim (naherp.com)
- U. o. symmetricus – Imperial Co, CA – photo by Jeff Teel (naherp.com)
- Map by Steve Bledsoe, SWCHR
DISTRIBUTION: In our region, Urosaurus o. symmetricus occurs in Arizona, California and southern Nevada along the Colorado River.
LEGAL STATUS: No Listings
MEANING OF SCIENTIFIC NAME: Urosaurus ornatus symmetricus (Baird – 1858)
Genus: Urosaurus, Greek – oura = tail + saurus = lizard
Species: ornatus, Latin = ornamented
Subspecies: symmetricus, Latin = balanced or equal – ref. regular series of larger dorsal scales
Ref. Ellen Beltz 2006
Ref. E. Jaeger 1962






