Colorado Herpetological Society's

Guide to the Reptiles and Amphibians of Colorado

Six-lined Racerunner
(Cnemidophorus sexlineatus)

Family Teiidae

Photo from Hammerson, 1986.
Used with permission.

Last Updated on January 20, 2000.

Six-lined Racerunner (Cnemidophorus sexlineatus)
Description: 2½" to 3 1/8" snout-vent length; to 10½" overall. Color brown to black, often lighter to center of back, with 6 or 7 narrow light stripes down back and sides. Head and anterior half of body often greenish to brilliant green. No light spots in dark areas between stripes. Head long and triangular. Scales on back small and granular; scales on underside larger and rectangular. Elevation Range: Below 6500' in northeastern Colorado; below 7500' in southeast. Subspecies in Colorado: Cnemidophorus sexlineatus viridis