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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 -- Plains blackhead snake
Plains blackhead snake (Tantilla nigriceps nigriceps). This small species has enlarged teeth on the rear of the maxilla, a Duvernoy's venom gland and is a specialist on centipedes and scorpions. It is fossorial and may be found in a variety of habitats, ranging from shortgrass prairie to juniper woodlands to bluffs surrounding riparian systems.
JPG -- Blackneck garter snake
Blackneck garter snake (Thamnophis cyrtopsis cyrtopsis). Blackneck garter snakes occur south of the Arkansas River in southeastern Colorado, and they are usually encountered along permanent waterways. The black patch behind the head and the lack of apparent blotches/checks between the dorsal stripes distinguishes them from the more common and widely distributed plains garter snake.

Previous Section -- Ground snake (Sonora semiannulata) & large adult ground snake
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Next Section -- Wandering garter snake (Thamnophis elegans vagrans) & Plains garter snake (Thamnophis radix haydenii)

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