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
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| 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. |
 |
| 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
Return to Contents
Next Section -- Wandering garter snake (
Thamnophis
elegans vagrans) & Plains garter snake (
Thamnophis radix haydenii)
