Coluber constrictor (North American Racer)

Maps

Locality Map

Locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

County Map

County map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Historical Locality Map

Historical locality map for Coluber constrictor (North American Racer). 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 Coluber constrictor (North American Racer). 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 map for Coluber constrictor (North American Racer)
Ecological Drainage Units locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Natural Divisions Locality Map

Natural Divisions locality map for Coluber constrictor (North American Racer)
Natural Divisions and Sections locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Major Watersheds Locality Map

Major watersheds map for Coluber constrictor (North American Racer)
Major Watersheds locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Level I Ecoregion Locality Map

Level I Ecoregions map for Coluber constrictor (North American Racer)
Level I Ecoregion locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Level II Ecoregion Locality Map

Level II Ecoregions map for Coluber constrictor (North American Racer)
Level II Ecoregion locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Level III Ecoregion Locality Map

Level III Ecoregions map for Coluber constrictor (North American Racer)
Level III Ecoregion locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Coluber constrictor (North American Racer)
Level IV Ecoregion locality map for Coluber constrictor (North American Racer).
Map created 25 February 2020.

Native Status

Coluber constrictor (North American Racer) is native to Missouri.

Collection Summary

Coluber constrictor (North American Racer) has a total of 666 valid, non-duplicated collections representing 112 counties and 494 localities. There are a total of 176 collectors and 429 collection dates for the species. This results in a total of 463 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 2019. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 18 and November 20, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for *Coluber constrictor* (North American Racer) 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	5	5	5	5	5	1959	2010
Andrew	1	1	1	1	1	1959	1959
Atchison	2	2	1	2	2	1986	1986
Audrain	2	2	2	2	2	1939	1999
Barry	2	5	2	3	3	1930	1939
Barton	5	6	8	5	5	1935	2018
Bates	3	4	1	3	3	1943	1958
Benton	5	6	4	5	5	1943	2012
Bollinger	5	6	6	5	5	1936	1999
Boone	22	57	9	27	31	1945	1997
Buchanan	2	2	2	2	2	1993	2004
Butler	3	4	3	3	3	1939	1987
Caldwell	5	10	2	5	5	1954	2017
Callaway	6	6	1	5	5	1998	2018
Camden	3	3	6	3	3	1967	1999
Cape Girardeau	2	4	3	3	3	1914	1995
Carroll	1	2	1	1	1	1944	1944
Carter	6	7	10	7	7	1930	1999
Cass	2	2	2	2	2	1950	2016
Cedar	3	3	5	3	3	1982	2012
Chariton	6	6	3	6	6	1939	2016
Christian	2	2	4	2	2	2003	2007
Clay	7	7	7	7	7	1949	1967
Clinton	2	2	1	2	2	1960	1961
Cole	1	1	1	1	1	1999	1999
Cooper	2	2	2	2	2	1968	1996
Crawford	4	6	5	4	4	1898	2004
Dade	6	6	3	5	5	1982	2018
Dallas	4	4	4	4	4	1939	2014
Daviess	5	8	4	5	5	1940	2016
De Kalb	1	23	1	2	2	1960	1960
Dent	7	9	9	8	9	1909	2013
Douglas	1	1	2	1	1	2005	2005
Dunklin	5	6	2	5	5	1957	1962
Franklin	5	6	5	5	5	1933	2011
Gasconade	4	4	3	4	4	1991	2015
Gentry	1	1	1	1	1	2000	2000
Greene	8	11	6	10	10	1959	2019
Grundy	3	4	2	3	3	1963	1982
Harrison	3	3	4	3	3	1992	2001
Henry	1	1	1	1	1	2004	2004
Hickory	4	4	4	4	4	1961	2005
Holt	10	14	4	13	13	1939	2018
Howard	2	2	2	2	2	2000	2000
Howell	3	3	3	2	3	1970	1970
Iron	3	3	2	3	3	1950	2009
Jackson	33	62	8	36	41	1914	1982
Jasper	5	7	5	5	6	1899	2019
Jefferson	28	33	12	12	14	1897	1971
Johnson	10	13	11	13	13	1960	2016
Knox	4	4	3	3	3	1961	2003
Laclede	2	2	3	2	2	2000	2002
Lafayette	2	2	2	2	2	1983	2019
Lawrence	3	3	3	1	3
Lewis	2	2	2	2	2	2001	2013
Lincoln	3	4	4	4	4	1964	2012
Linn	4	6	6	4	4	1941	2005
Livingston	1	1	1	1	1	1962	1962
Macon	3	3	3	3	3	1993	2012
Madison	2	2	3	2	2	2003	2003
Maries	4	4	2	3	3	1958	2013
Marion	2	2	2	2	2	2002	2015
McDonald	3	3	3	3	3	1930	1972
Mercer	1	1	1	1	1	1950	1950
Miller	2	2	4	2	2	1968	2010
Mississippi	1	1	1	1	1	2007	2007
Moniteau	1	1	2	1	1	1992	1992
Monroe	3	3	5	3	3	1983	2008
Montgomery	4	4	3	4	4	1901	2018
Morgan	5	5	5	5	5	1940	2002
Newton	1	1	1	1	1	1984	1984
Nodaway	1	1	1	1	1	1936	1936
Oregon	4	4	4	4	4	1900	2007
Osage	2	2	2	2	2	2000	2010
Ozark	4	4	5	4	4	1902	2003
Pemiscot	2	2	2	2	2	1962	1962
Perry	3	3	3	3	3	1995	2011
Pettis	5	6	4	5	5	1939	2004
Phelps	7	7	7	7	7	1945	2012
Pike	7	7	6	7	7	1948	2009
Platte	4	4	3	4	4	1931	1950
Polk	8	8	5	7	7	2000	2016
Pulaski	3	4	3	4	4	1954	1972
Putnam	3	3	2	3	3	1950	2015
Ralls	1	1	1	1	1	2002	2002
Randolph	4	4	2	4	4	1961	2013
Ray	6	10	1	6	6	1951	1962
Reynolds	6	7	7	5	7	1939	1964
Ripley	3	3	3	3	3	1996	2008
Saint Charles	7	7	5	7	7	1939	2010
Saint Clair	7	9	12	7	8	1938	2007
Sainte Genevieve	4	4	5	4	4	1932	2014
Saint Francois	5	5	10	5	5	1931	2008
Saint Louis	13	24	9	15	17	1889	1971
Saline	3	5	3	3	3	1940	2013
Schuyler	2	2	1	2	2	2003	2008
Scotland	3	3	2	2	2	2003	2005
Scott	4	4	5	4	4	1938	2015
Shannon	4	4	7	4	4	1941	2010
Shelby	3	3	2	3	3	1961	2015
Stoddard	3	3	3	3	3	1938	1949
Stone	5	7	6	7	7	1906	1973
Sullivan	3	3	2	2	2	2005	2009
Taney	5	7	7	6	6	1966	2009
Texas	6	6	3	5	5	1932	2004
Vernon	2	3	2	3	3	1936	1937
Warren	1	1	1	1	1	2001	2001
Washington	4	8	4	5	6	1909	1966
Wayne	10	14	16	11	11	1935	2010
Webster	2	2	4	2	2	1959	2003
Worth	1	1	1	1	1	2000	2000
Wright	4	5	2	4	4	1932	2003

Potential County Records

Potential counties for *Coluber constrictor* (North American Racer). 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	Clark	Same Level IV ecoregion, within 5 miles	Loess Flats and Till Plains
	2	New Madrid	Same Level IV ecoregion, within 5 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:: Coluber Linnaeus, 1758 - North American Racers, Coachwhips, and Whipsnakes
Species:: Coluber constrictor Linnaeus, 1758 - North American Racer

Recent Taxonomic Synonyms

(none)

Missouri Herpetological Atlas Project

Coluber constrictor Linnaeus, 1758 - North American Racer