Maps
Locality Map
Locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
County Map
County map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Historical Locality Map
Historical locality map for Nerodia sipedon (Common 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 25 February 2020.
Historical County Map
Historical county map for Nerodia sipedon (Common 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 25 February 2020.
Ecological Drainage Locality Map
Ecological Drainage Units locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Natural Divisions Locality Map
Natural Divisions and Sections locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Major Watersheds Locality Map
Major Watersheds locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Level I Ecoregion Locality Map
Level I Ecoregion locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Level II Ecoregion Locality Map
Level II Ecoregion locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Level III Ecoregion Locality Map
Level III Ecoregion locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Level IV Ecoregion Locality Map
Level IV Ecoregion locality map for Nerodia sipedon (Common Watersnake).
Map created 25 February 2020.
Native Status
Nerodia sipedon (Common Watersnake) is native to Missouri.
Collection Summary
Nerodia sipedon (Common Watersnake) has a total of 1103 valid, non-duplicated collections representing 110 counties and 491 localities. There are a total of 200 collectors and 414 collection dates for the species. This results in a total of 448 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1897 and its most recent collection year is 2019. The earliest and latest collection dates (independent of earliest and most recent collection years) are February 11 and November 6, respectively. If you have a new record to report, read the New Records section of the FAQ.
Collection Summary by County
County | Localities | Collections | Collectors | Dates | Expeditions | Earliest Year | Latest Year | |
---|---|---|---|---|---|---|---|---|
![]() | Adair | 2 | 3 | 3 | 2 | 2 | 1955 | 1969 |
![]() | Andrew | 1 | 1 | 1 | 1 | 1 | 1991 | 1991 |
![]() | Atchison | 1 | 1 | 1 | 1 | 1 | 2017 | 2017 |
![]() | Audrain | 2 | 2 | 1 | 2 | 2 | 2000 | 2011 |
![]() | Barry | 17 | 55 | 11 | 16 | 17 | 1930 | 2015 |
![]() | Barton | 1 | 2 | 1 | 1 | 1 | 1982 | 1982 |
![]() | Bates | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
![]() | Benton | 3 | 3 | 2 | 3 | 3 | 1963 | 1982 |
![]() | Boone | 9 | 16 | 9 | 9 | 10 | 1952 | 2010 |
![]() | Buchanan | 1 | 1 | 1 | 1 | 1 | 1993 | 1993 |
![]() | Butler | 5 | 60 | 3 | 3 | 5 | 1937 | 1975 |
![]() | Caldwell | 3 | 3 | 3 | 3 | 3 | 1985 | 2017 |
![]() | Callaway | 3 | 3 | 4 | 3 | 3 | 1929 | 2018 |
![]() | Camden | 4 | 4 | 4 | 4 | 4 | 1962 | 1982 |
![]() | Cape Girardeau | 6 | 8 | 7 | 7 | 7 | 1963 | 1996 |
![]() | Carroll | 1 | 1 | 2 | 1 | 1 | 2006 | 2006 |
![]() | Carter | 6 | 11 | 11 | 11 | 11 | 1930 | 2004 |
![]() | Cass | 5 | 5 | 6 | 5 | 5 | 1964 | 2003 |
![]() | Chariton | 3 | 4 | 4 | 3 | 3 | 1938 | 1999 |
![]() | Christian | 9 | 10 | 13 | 9 | 9 | 1950 | 2019 |
![]() | Clark | 3 | 3 | 4 | 3 | 3 | 1979 | 2011 |
![]() | Clay | 8 | 9 | 7 | 8 | 8 | 1938 | 1967 |
![]() | Clinton | 3 | 3 | 2 | 3 | 3 | 1961 | 1962 |
![]() | Cole | 1 | 1 | 1 | 1 | 1 | 1982 | 1982 |
![]() | Cooper | 2 | 3 | 4 | 3 | 3 | 1929 | 1968 |
![]() | Crawford | 4 | 9 | 4 | 7 | 7 | 1899 | 1965 |
![]() | Dade | 3 | 4 | 5 | 3 | 3 | 1936 | 2012 |
![]() | Dallas | 6 | 8 | 10 | 7 | 7 | 1939 | 2018 |
![]() | Daviess | 2 | 2 | 2 | 2 | 2 | 1940 | 2015 |
![]() | De Kalb | 2 | 2 | 2 | 2 | 2 | 1962 | 1986 |
![]() | Dent | 3 | 12 | 5 | 5 | 5 | 1909 | 1965 |
![]() | Douglas | 2 | 2 | 2 | 2 | 2 | 1993 | 2016 |
![]() | Dunklin | 3 | 4 | 6 | 4 | 4 | 1904 | 1947 |
![]() | Franklin | 3 | 7 | 3 | 3 | 3 | 1933 | 1941 |
![]() | Gasconade | 4 | 4 | 4 | 4 | 4 | 1967 | 2013 |
![]() | Gentry | 2 | 2 | 2 | 2 | 2 | 1997 | 2001 |
![]() | Greene | 17 | 83 | 12 | 17 | 18 | 1930 | 2019 |
![]() | Grundy | 3 | 5 | 5 | 5 | 5 | 1964 | 2006 |
![]() | Harrison | 2 | 2 | 2 | 2 | 2 | 1983 | 2012 |
![]() | Henry | 2 | 5 | 2 | 2 | 2 | 1967 | 1982 |
![]() | Hickory | 6 | 7 | 4 | 6 | 6 | 1964 | 2004 |
![]() | Holt | 3 | 3 | 1 | 2 | 2 | 2017 | 2019 |
![]() | Howard | 5 | 5 | 3 | 3 | 3 | 1999 | 1999 |
![]() | Howell | 2 | 64 | 1 | 3 | 3 | 1975 | 1976 |
![]() | Iron | 2 | 2 | 4 | 2 | 2 | 1933 | 1933 |
![]() | Jackson | 27 | 113 | 6 | 26 | 26 | 1908 | 1978 |
![]() | Jasper | 3 | 4 | 4 | 4 | 4 | 1906 | 1997 |
![]() | Jefferson | 7 | 9 | 2 | 3 | 3 | 1897 | 1897 |
![]() | Johnson | 13 | 40 | 13 | 15 | 18 | 1960 | 1997 |
![]() | Knox | 3 | 3 | 3 | 3 | 3 | 1986 | 2003 |
![]() | Laclede | 3 | 3 | 6 | 3 | 3 | 1972 | 2002 |
![]() | Lafayette | 5 | 5 | 3 | 5 | 5 | 1937 | 1999 |
![]() | Lawrence | 2 | 2 | 1 | 1 | 1 | 1982 | 1982 |
![]() | Lewis | 4 | 6 | 3 | 5 | 5 | 1940 | 1996 |
![]() | Lincoln | 3 | 5 | 2 | 4 | 4 | 1979 | 2013 |
![]() | Linn | 2 | 2 | 2 | 2 | 2 | 2005 | 2007 |
![]() | Livingston | 2 | 3 | 2 | 2 | 2 | 1940 | 1940 |
![]() | Macon | 2 | 2 | 2 | 2 | 2 | 1996 | 2011 |
![]() | Madison | 6 | 8 | 11 | 7 | 7 | 1931 | 2007 |
![]() | Maries | 5 | 7 | 4 | 4 | 4 | 1909 | 2000 |
![]() | Marion | 3 | 3 | 3 | 3 | 3 | 1947 | 1995 |
![]() | McDonald | 11 | 27 | 8 | 9 | 10 | 1930 | 2001 |
![]() | Mercer | 1 | 1 | 1 | 1 | 1 | 1983 | 1983 |
![]() | Miller | 10 | 48 | 6 | 9 | 9 | 1939 | 2002 |
![]() | Mississippi | 1 | 1 | 3 | 1 | 1 | 1996 | 1996 |
![]() | Moniteau | 1 | 1 | 1 | 1 | 1 | ||
![]() | Monroe | 5 | 5 | 5 | 5 | 5 | 1999 | 2018 |
![]() | Montgomery | 2 | 3 | 3 | 3 | 3 | 1905 | 2005 |
![]() | Morgan | 3 | 3 | 4 | 3 | 3 | 1966 | 2013 |
![]() | Newton | 4 | 4 | 5 | 4 | 4 | 1935 | 2000 |
![]() | Nodaway | 2 | 2 | 2 | 2 | 2 | 2012 | 2017 |
![]() | Oregon | 7 | 31 | 7 | 7 | 7 | 1930 | 1976 |
![]() | Osage | 2 | 2 | 2 | 2 | 2 | 1961 | 1967 |
![]() | Ozark | 10 | 20 | 7 | 8 | 8 | 1902 | 2010 |
![]() | Perry | 2 | 2 | 4 | 2 | 2 | 1994 | 1994 |
![]() | Pettis | 6 | 6 | 7 | 6 | 6 | 1930 | 2013 |
![]() | Phelps | 5 | 9 | 4 | 4 | 4 | 1945 | 2016 |
![]() | Pike | 8 | 15 | 3 | 12 | 12 | 1992 | 2019 |
![]() | Platte | 3 | 3 | 3 | 3 | 3 | 1960 | 2011 |
![]() | Polk | 2 | 2 | 4 | 2 | 2 | 1983 | 2004 |
![]() | Pulaski | 6 | 6 | 7 | 6 | 6 | 1929 | 2015 |
![]() | Putnam | 1 | 1 | 1 | 1 | 1 | 2005 | 2005 |
![]() | Ralls | 3 | 3 | 6 | 3 | 3 | 1992 | 2015 |
![]() | Randolph | 4 | 4 | 2 | 4 | 4 | 1992 | 2002 |
![]() | Ray | 3 | 3 | 4 | 3 | 3 | 1950 | 2007 |
![]() | Reynolds | 10 | 21 | 12 | 10 | 11 | 1939 | 1964 |
![]() | Ripley | 1 | 1 | 2 | 1 | 1 | 2007 | 2007 |
![]() | Saint Charles | 4 | 5 | 6 | 5 | 5 | 1906 | 1990 |
![]() | Saint Clair | 3 | 4 | 2 | 4 | 4 | 1938 | 2001 |
![]() | Sainte Genevieve | 2 | 3 | 2 | 2 | 2 | 1940 | 2014 |
![]() | Saint Francois | 3 | 3 | 2 | 3 | 3 | 1966 | 2007 |
![]() | Saint Louis | 3 | 7 | 2 | 5 | 5 | 1906 | 1958 |
![]() | Saline | 2 | 2 | 3 | 2 | 2 | 1966 | 2013 |
![]() | Schuyler | 1 | 1 | 1 | 1 | 1 | 1985 | 1985 |
![]() | Scotland | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
![]() | Scott | 3 | 4 | 2 | 1 | 1 | 2011 | 2011 |
![]() | Shannon | 14 | 24 | 15 | 11 | 12 | 1940 | 2014 |
![]() | Shelby | 2 | 2 | 2 | 2 | 2 | 1992 | 2010 |
![]() | Stoddard | 4 | 8 | 6 | 6 | 7 | 1939 | 1973 |
![]() | Stone | 13 | 20 | 16 | 13 | 14 | 1906 | 2018 |
![]() | Sullivan | 4 | 4 | 2 | 4 | 4 | 2009 | 2015 |
![]() | Taney | 12 | 13 | 10 | 10 | 10 | 1965 | 2018 |
![]() | Texas | 8 | 9 | 8 | 8 | 8 | 1970 | 2016 |
![]() | Vernon | 5 | 36 | 2 | 5 | 5 | 1934 | 1937 |
![]() | Warren | 2 | 2 | 2 | 2 | 2 | 2001 | 2001 |
![]() | Washington | 2 | 5 | 1 | 2 | 2 | 1909 | 1909 |
![]() | Wayne | 11 | 17 | 13 | 10 | 11 | 1939 | 1981 |
![]() | Webster | 5 | 29 | 5 | 6 | 6 | 1932 | 2017 |
![]() | Worth | 1 | 1 | 1 | 1 | 1 | 1992 | 1992 |
![]() | Wright | 3 | 14 | 4 | 3 | 3 | 1930 | 1948 |
Potential County Records
Likelihood | County | Rationale | Ecoregion / Watershed | |
---|---|---|---|---|
![]() | 2 | Bollinger | Same Level IV ecoregion, within 5 miles | Bluff Hills |
![]() | 2 | Bollinger | Same Level IV ecoregion, within 5 miles | Eastern Ozark Border |
![]() | 2 | Bollinger | Same Level IV ecoregion, within 5 miles | River Hills |
![]() | 2 | Bollinger | Same Level IV ecoregion, within 5 miles | St. Francis Lowlands |
![]() | 2 | Bollinger | Same Level IV ecoregion, within 5 miles | Western Lowlands Pleistocene Valley Trains |
![]() | 2 | Cedar | Same Level IV ecoregion, within 5 miles | Springfield Plateau |
![]() | 2 | New Madrid | Same Level IV ecoregion, within 5 miles | Northern Holocene Meander Belts |
![]() | 6 | Pemiscot | Same Level IV ecoregion, within 20 miles | St. Francis Lowlands |
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:
- Colubridae Oppel, 1811 - Typical Harmless Snakes
- Genus:
- Nerodia Baird and Girard, 1853 - North American Watersnakes
- Species:
- Nerodia sipedon (Linnaeus, 1758) - Common Watersnake
Recent Taxonomic Synonyms
(none)