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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 -- Western hognose anterior end
JPG -- Desert massasauga anterior end
Anterior end of a western hognose snake (Heterodon nasicus nasicus; top) and a desert massasauga (Sistrurus catenatus edwardsi; bottom); note the basic similarity of the dorsal and lateral blotch pattern. These snakes are both sympatric and syntopic in much of their distribution in southeastern Colorado and have been found at the same point crossing/basking on roads at night.

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