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A Survey of the Herpetofauna of the Comanche National Grasslands in Southeastern Colorado

Appendix 7:

Photographs of selected habitat and species of amphibians and
reptiles observered during the 1995-1997 field seasons

JPG -- Prairie racerunner lizard
Prairie racerunner lizard (Cnemidophorus sexlineatus viridis). Racerunners are broadly distributed across shortgrass prairie habitat in southeastern Colorado and are often quite common. These fast-moving lizards may be active at mid-day, when high temperatures have forced most other reptiles to seek refuge.
JPG -- Checkered whiptail
Checkered whiptail (Cnemidophorus tesselatus). This parthenogenetic species has resulted from hybridization of two other species of Cnemidophorus. Checkered whiptails appear to occur along drainages of the Arkansas River system at lower elevation, particularly along the Pugatoire River; they are moderately common in the northern section of the Grasslands, particularly near Vogel Canyon.

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