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Storeria occipitomaculata (Storer, 1839) - Red-bellied Snake

Maps

Locality Map

Locality map for Storeria occipitomaculata (Red-bellied Snake)
Locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

County Map

County map for Storeria occipitomaculata (Red-bellied Snake)
County map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Historical Locality Map

Historical locality map for Storeria occipitomaculata (Red-bellied Snake)
Historical locality map for Storeria occipitomaculata (Red-bellied Snake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that more recent records might conceal underlying older records.
Map created 15 April 2026.

Historical County Map

Historical county map for Storeria occipitomaculata (Red-bellied Snake)
Historical county map for Storeria occipitomaculata (Red-bellied Snake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that only the most recent county record for each county is shown.
Map created 15 April 2026.

Ecological Drainage Locality Map

Ecological Drainage Units map for Storeria occipitomaculata (Red-bellied Snake)
Ecological Drainage Units locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Natural Divisions Locality Map

Natural Divisions locality map for Storeria occipitomaculata (Red-bellied Snake)
Natural Divisions and Sections locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds map for Storeria occipitomaculata (Red-bellied Snake)
Major Watersheds locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregions map for Storeria occipitomaculata (Red-bellied Snake)
Level I Ecoregion locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregions map for Storeria occipitomaculata (Red-bellied Snake)
Level II Ecoregion locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregions map for Storeria occipitomaculata (Red-bellied Snake)
Level III Ecoregion locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Storeria occipitomaculata (Red-bellied Snake)
Level IV Ecoregion locality map for Storeria occipitomaculata (Red-bellied Snake).
Map created 15 April 2026.

Native Status

Storeria occipitomaculata (Red-bellied Snake) is native to Missouri.

Collection Summary

Storeria occipitomaculata (Red-bellied Snake) has a total of 206 valid, non-duplicated collections representing 70 counties and 157 localities. There are a total of 87 collectors and 152 collection dates for the species. This results in a total of 157 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1889 and its most recent collection year is 2025. The earliest and latest collection dates (independent of earliest and most recent collection years) are February 26 and November 13, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Storeria occipitomaculata (Red-bellied Snake) by county. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a county name to view more information about that county. Click on column headings to sort by that column.
County Localities Collections Collectors Dates Expeditions Earliest Year Latest Year
Adair 1 1 1 1 1 2012 2012
Audrain 2 2 1 2 2 1999 1999
Barry 4 4 5 4 4 1930 2007
Benton 3 3 2 2 2 1962 2002
Bollinger 1 2 1 1 1 1971 1971
Boone 15 30 4 18 20 1978 2025
Butler 1 1 3 1 1 1970 1970
Callaway 4 4 6 4 4 2001 2024
Camden 3 3 2 3 3 1966 1977
Cape Girardeau 1 1 1 1 1 1996 1996
Carroll 1 1 1 1 1 2020 2020
Carter 4 4 8 4 4 1930 2002
Cedar 1 1 1 1 1 2022 2022
Christian 4 4 6 4 4 1973 2022
Clark 1 1 1 1 1 2010 2010
Cole 1 1 1 1 1 1980 1980
Cooper 1 1 1 1 1 2001 2001
Crawford 2 3 3 3 3 1902 2024
Dallas 3 3 5 2 2 2000 2008
Dent 1 2 2 2 2 1909 1909
Douglas 2 2 2 2 2 1972 2002
Franklin 2 2 2 2 2 1941 1971
Gasconade 1 1 1 1 1 2006 2006
Greene 9 9 6 9 9 1969 2024
Hickory 1 1 4 1 1 2024 2024
Howard 2 2 1 2 2 2001 2006
Howell 1 1 1 1 1 2002 2002
Jackson 1 1 1 1 1 1984 1984
Jefferson 3 4 2 2 2 1897 1897
Johnson 1 3 2 3 3 1960 2008
Knox 1 1 1 1 1 2011 2011
Laclede 1 1 2 1 1 2000 2000
Lewis 1 1 1 1 1 1996 1996
Lincoln 1 3 1 2 2 1978 2009
Macon 3 3 6 3 3 1997 2021
Madison 2 2 1 1 1 2015 2015
Maries 1 1 1 1 1 2000 2000
Marion 1 1 1 1 1 2002 2002
Miller 2 2 5 2 2 1967 2006
Moniteau 1 1 1 1 1 1998 1998
Monroe 4 4 5 4 4 1988 2021
Montgomery 3 5 5 4 4 1906 2004
Newton 1 1 1 1 1 1993 1993
Oregon 3 7 3 5 5 1900 1975
Osage 1 1 1 1 1 1936 1936
Ozark 2 5 3 3 3 1902 1961
Pettis 2 2 2 2 2 1967 2014
Phelps 2 2 2 2 2 1978 1993
Pike 2 3 1 2 2 1992 2017
Pulaski 2 2 3 2 2 1966 2016
Ralls 1 1 1 1 1 2005 2005
Randolph 2 2 1 2 2 2001 2004
Reynolds 2 2 2 2 2 1963 1963
Ripley 2 2 2 2 2 2009 2009
Saint Charles 2 2 1 2 2 2010 2013
Saint Clair 6 16 8 7 7 1936 2007
Sainte Genevieve 2 2 5 2 2 2004 2010
Saint Francois 1 1 1 1 1 2020 2020
Saint Louis 3 4 4 3 4 1889 2010
Saline 1 1 2 1 1 2012 2012
Scott 1 1 1 1 1 2001 2001
Shannon 1 1 1 1 1 1992 1992
Stone 4 7 4 5 5 1892 1973
Taney 2 2 2 2 2 1967 1974
Texas 3 3 2 3 3 2001 2004
Warren 2 2 2 2 2 1966 2009
Washington 1 3 1 2 2 1909 1909
Wayne 2 2 4 2 2 1934 2010
Webster 1 1 1 1 1 1961 1961
Wright 5 5 5 4 4 1973 2014

Potential County Records

Potential counties for Storeria occipitomaculata (Red-bellied Snake). 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 Henry Same Level IV ecoregion, within 5 miles Osage/Gasconade Hills
2 Iron Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Livingston Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 McDonald Same Level IV ecoregion, within 5 miles Springfield Plateau
2 Morgan Same Level IV ecoregion, within 5 miles Osage/Gasconade Hills
2 Polk Same Level IV ecoregion, within 5 miles Central Plateau
2 Polk Same Level IV ecoregion, within 5 miles Springfield Plateau
2 Scotland Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
4 Caldwell Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Cass Same Level IV ecoregion, within 10 miles Wooded Osage Plains
4 Dade Same Level IV ecoregion, within 10 miles Springfield Plateau
4 Lawrence Same Level IV ecoregion, within 10 miles Springfield Plateau
4 Perry Same Level IV ecoregion, within 10 miles River Hills
4 Shelby Same Level IV ecoregion, within 10 miles Claypan Prairie
4 Stoddard Same Level IV ecoregion, within 10 miles St. Francis Lowlands
6 Barton Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Chariton Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Daviess Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Dunklin Same Level IV ecoregion, within 20 miles Western Lowlands Pleistocene Valley Trains
6 Jasper Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Lafayette Same Level IV ecoregion, within 20 miles Wooded Osage Plains
6 Linn Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Mississippi Same Level IV ecoregion, within 20 miles St. Francis Lowlands
6 Ray Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Schuyler Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Schuyler Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
7 Putnam Same Level III ecoregion, within 20 miles Central Irregular Plains
7 Sullivan Same Level III ecoregion, within 20 miles Central Irregular Plains
8 Grundy Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 New Madrid Same Level IV ecoregion, within 30 miles St. Francis Lowlands
9 Platte Same Level III ecoregion, within 30 miles Central Irregular Plains
10 Bates Same Level IV ecoregion, adjacent county Wooded Osage Plains
10 Clay Same Level IV ecoregion, adjacent county Loess Flats and Till Plains
10 Vernon Same Level IV ecoregion, adjacent county Wooded Osage Plains

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Reptilia Laurenti, 1768 - Reptiles
Order:
Squamata Oppel, 1811 - Lizards and Snakes
Family:
Natricidae Bonaparte, 1838 - Harmless Egg-retaining Snakes
Genus:
Storeria Baird and Girard, 1853 - North American Brownsnakes
Species:
Storeria occipitomaculata (Storer, 1839) - Red-bellied Snake

Recent Taxonomic Synonyms

(none)