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Sistrurus miliarius (Linnaeus, 1766) - Western Pygmy Rattlesnake

Potential County Records

Potential counties for Sistrurus miliarius (Western Pygmy Rattlesnake). Counties are listed in descending order of their likelihood of having this species. Click on a county to view more information about that county. Click on column headings to sort by that column.
Likelihood County Rationale Ecoregion / Watershed
2 Iron Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Jefferson Same Level IV ecoregion, within 5 miles Meramec River Hills
2 Madison Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Saint Francois Same Level IV ecoregion, within 5 miles Meramec River Hills
4 Dent Same Level IV ecoregion, within 10 miles Current River Hills
4 Franklin Same Level IV ecoregion, within 10 miles Meramec River Hills
4 Greene Same Level IV ecoregion, within 10 miles Springfield Plateau
4 Texas Same Level IV ecoregion, within 10 miles Current River Hills
4 Texas Same Level IV ecoregion, within 10 miles White River Hills
4 Webster Same Level IV ecoregion, within 10 miles White River Hills
6 Bollinger Same Level IV ecoregion, within 20 miles Black River Hills Border
6 Bollinger Same Level IV ecoregion, within 20 miles St. Francois Knobs and Basins
6 Lawrence Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Newton Same Level IV ecoregion, within 20 miles Dissected Springfield Plateau-Elk River Hills
6 Stoddard Same Level IV ecoregion, within 20 miles Black River Hills Border
6 Wright Same Level IV ecoregion, within 20 miles White River Hills
7 Sainte Genevieve Same Level III ecoregion, within 20 miles Ozark Highlands
8 Crawford Same Level IV ecoregion, within 30 miles Meramec River Hills
8 Dade Same Level IV ecoregion, within 30 miles Springfield Plateau
9 Phelps Same Level III ecoregion, within 30 miles Ozark Highlands
9 Saint Louis Same Level III ecoregion, within 30 miles Ozark Highlands