This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device.

Nerodia erythrogaster (Forster, 1771) - Plain-bellied Watersnake

Maps

Locality Map

Locality map for Nerodia erythrogaster (Plain-bellied Watersnake)
Locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

County Map

County map for Nerodia erythrogaster (Plain-bellied Watersnake)
County map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Historical Locality Map

Historical locality map for Nerodia erythrogaster (Plain-bellied Watersnake)
Historical locality map for Nerodia erythrogaster (Plain-bellied Watersnake). 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 3 August 2022.

Historical County Map

Historical county map for Nerodia erythrogaster (Plain-bellied Watersnake)
Historical county map for Nerodia erythrogaster (Plain-bellied Watersnake). 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 3 August 2022.

Ecological Drainage Locality Map

Ecological Drainage Units map for Nerodia erythrogaster (Plain-bellied Watersnake)
Ecological Drainage Units locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Natural Divisions Locality Map

Natural Divisions locality map for Nerodia erythrogaster (Plain-bellied Watersnake)
Natural Divisions and Sections locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Major Watersheds Locality Map

Major watersheds map for Nerodia erythrogaster (Plain-bellied Watersnake)
Major Watersheds locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Level I Ecoregion Locality Map

Level I Ecoregions map for Nerodia erythrogaster (Plain-bellied Watersnake)
Level I Ecoregion locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Level II Ecoregion Locality Map

Level II Ecoregions map for Nerodia erythrogaster (Plain-bellied Watersnake)
Level II Ecoregion locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Level III Ecoregion Locality Map

Level III Ecoregions map for Nerodia erythrogaster (Plain-bellied Watersnake)
Level III Ecoregion locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Nerodia erythrogaster (Plain-bellied Watersnake)
Level IV Ecoregion locality map for Nerodia erythrogaster (Plain-bellied Watersnake).
Map created 3 August 2022.

Native Status

Nerodia erythrogaster (Plain-bellied Watersnake) is native to Missouri.

Collection Summary

Nerodia erythrogaster (Plain-bellied Watersnake) has a total of 359 valid, non-duplicated collections representing 43 counties and 153 localities. There are a total of 80 collectors and 139 collection dates for the species. This results in a total of 148 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1898 and its most recent collection year is 2021. The earliest and latest collection dates (independent of earliest and most recent collection years) are March 2 and November 3, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Nerodia erythrogaster (Plain-bellied Watersnake) 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
Barton 5 5 3 4 4 1935 2020
Bates 5 5 3 4 4 1988 2020
Bollinger 7 10 11 10 10 1931 2009
Buchanan 1 1 1 1 1
Butler 8 23 8 7 8 1898 1949
Cape Girardeau 1 1 1 1 1 1994 1994
Cass 3 3 3 3 3 1959 2008
Cedar 1 1 1 1 1 2002 2002
Chariton 8 9 4 6 6 1938 2015
Christian 1 1 2 1 1 2002 2002
Clay 1 1 1 1 1 1968 1968
Dade 2 2 3 2 2 1992 2003
Dunklin 14 19 11 14 15 1907 2007
Henry 2 8 3 3 4 1938 1941
Howell 1 1 1 1 1 2006 2006
Jackson 1 1 1 1 1 1908 1908
Jasper 5 5 5 5 5 1961 2015
Johnson 6 9 6 6 7 1937 1976
Lafayette 2 2 3 2 2 1992 1992
Lawrence 1 1 3 1 1 2015 2015
Lincoln 1 1 1 1 1 1996 1996
Linn 1 2 1 1 1
Livingston 4 37 2 3 3 1940 2021
McDonald 3 4 3 3 3 1930 2003
Mississippi 10 29 6 12 12 1936 1987
New Madrid 2 3 3 2 2 1962 1995
Newton 5 6 6 5 5 2001 2012
Oregon 2 2 3 2 2 1974 2005
Ozark 2 2 2 2 2 1968 1975
Pemiscot 3 5 2 2 3 1923 1923
Perry 3 3 3 2 3 1994 2011
Pettis 1 1 1 1 1 1997 1997
Pike 1 1 1 1 1 1995 1995
Platte 1 15 1 1 1 1958 1958
Ripley 3 3 2 3 3 1967 1970
Saint Charles 4 4 4 4 4 1983 2010
Saint Clair 2 2 5 2 2 2012 2012
Sainte Genevieve 1 1 3 1 1 2020 2020
Scott 1 1 2 1 1 1954 1954
Stoddard 9 26 19 19 20 1935 2019
Stone 1 1 1 1 1 1927 1927
Vernon 13 97 6 14 14 1934 2020
Wayne 4 4 5 4 4 1939 2003

Potential County Records

Potential counties for Nerodia erythrogaster (Plain-bellied Watersnake). 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 Barry Same Level IV ecoregion, within 5 miles Springfield Plateau
2 Caldwell Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Carroll Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Carroll Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Daviess Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Greene Same Level IV ecoregion, within 5 miles Springfield Plateau
2 Iron Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Madison Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Ralls Same Level IV ecoregion, within 5 miles River Hills
2 Ray Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Ray Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Saint Louis Same Level IV ecoregion, within 5 miles Middle Mississippi Alluvial Plain
2 Saline Same Level IV ecoregion, within 5 miles Wooded Osage Plains
2 Taney Same Level IV ecoregion, within 5 miles White River Hills
4 Benton Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Clinton Same Level IV ecoregion, within 10 miles Rolling Loess Prairies
4 Hickory Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Polk Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
6 Douglas Same Level IV ecoregion, within 20 miles White River Hills
6 Grundy Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Macon Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Marion Same Level IV ecoregion, within 20 miles River Hills
6 Randolph Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Reynolds Same Level IV ecoregion, within 20 miles St. Francois Knobs and Basins
6 Shannon Same Level IV ecoregion, within 20 miles Central Plateau
6 Sullivan Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
7 Carter Same Level III ecoregion, within 20 miles Ozark Highlands
7 Franklin Same Level III ecoregion, within 20 miles Interior River Valleys and Hills
7 Warren Same Level III ecoregion, within 20 miles Interior River Valleys and Hills
8 Adair Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Andrew Same Level IV ecoregion, within 30 miles Missouri Alluvial Plain
8 Audrain Same Level IV ecoregion, within 30 miles River Hills
8 Camden Same Level IV ecoregion, within 30 miles Osage/Gasconade Hills
8 Cooper Same Level IV ecoregion, within 30 miles Wooded Osage Plains
8 Dallas Same Level IV ecoregion, within 30 miles Osage/Gasconade Hills
8 De Kalb Same Level IV ecoregion, within 30 miles Rolling Loess Prairies
8 De Kalb Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Harrison Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Holt Same Level IV ecoregion, within 30 miles Missouri Alluvial Plain
8 Howard Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Howard Same Level IV ecoregion, within 30 miles Missouri Alluvial Plain
8 Jefferson Same Level IV ecoregion, within 30 miles River Hills
8 Jefferson Same Level IV ecoregion, within 30 miles Middle Mississippi Alluvial Plain
8 Monroe Same Level IV ecoregion, within 30 miles River Hills
8 Montgomery Same Level IV ecoregion, within 30 miles River Hills
8 Morgan Same Level IV ecoregion, within 30 miles Osage/Gasconade Hills
8 Morgan Same Level IV ecoregion, within 30 miles Wooded Osage Plains
8 Saint Francois Same Level IV ecoregion, within 30 miles Eastern Ozark Border
8 Saint Francois Same Level IV ecoregion, within 30 miles St. Francois Knobs and Basins
8 Texas Same Level IV ecoregion, within 30 miles White River Hills
8 Texas Same Level IV ecoregion, within 30 miles Central Plateau
8 Webster Same Level IV ecoregion, within 30 miles Springfield Plateau
8 Wright Same Level IV ecoregion, within 30 miles White River Hills

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Reptilia Laurenti, 1768 - Reptiles
Order:
Squamata Oppel, 1811 - Lizards and Snakes
Suborder:
Serpentes Linnaeus, 1758 - Snakes
Family:
Natricidae Bonaparte, 1838 - Harmless Live-bearing Snakes
Genus:
Nerodia Baird and Girard, 1853 - North American Watersnakes
Species:
Nerodia erythrogaster (Forster, 1771) - Plain-bellied Watersnake

Recent Taxonomic Synonyms

(none)