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Mercer County, Missouri


Potential Species Records

Potential species for Mercer County. Species are listed in descending order of their likelihood of occurrence within the county. Click on a species or common name to view more information about that species. Click on column headings to sort by that column.
Likelihood Species Common Name Rationale Ecoregion / Watershed
2 Pseudacris maculata Boreal Chorus Frog Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Storeria dekayi DeKay's Brownsnake Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
4 Agkistrodon contortrix Copperhead Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Ambystoma texanum Small-mouthed Salamander Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Carphophis vermis Western Wormsnake Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Lampropeltis holbrooki Speckled Kingsnake Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Lampropeltis triangulum Eastern Milksnake Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Plestiodon fasciatus Common Five-lined Skink Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Thamnophis radix Plains Gartersnake Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
6 Apalone mutica Midland Smooth Softshell Same watershed, within 20 miles Thompson
6 Heterodon platirhinos Eastern Hog-nosed Snake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Hyla versicolor Gray Treefrog Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Nerodia rhombifer Diamond-backed Watersnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Opheodrys vernalis Smooth Greensnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Pituophis catenifer Bullsnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Plestiodon septentrionalis Prairie Skink Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Regina grahamii Graham's Crawfish Snake Same watershed, within 20 miles Thompson
6 Scincella lateralis Little Brown Skink Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Trachemys scripta Red-eared Slider Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Tropidoclonion lineatum Lined Snake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Virginia valeriae Western Smooth Earthsnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
8 Hyla chrysoscelis Cope's Gray Treefrog Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Terrapene carolina Three-toed Box Turtle Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Terrapene ornata Ornate Box Turtle Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
10 Anaxyrus fowleri Fowler's Toad Same Level IV ecoregion, adjacent county Loess Flats and Till Plains
10 Apalone spinifera Eastern Spiny Softshell Adjacent county, same watershed Lower Grand