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Agkistrodon piscivorus (Lacépède, 1789) - Western Cottonmouth


Collection Summary

Agkistrodon piscivorus (Western Cottonmouth) has a total of 194 valid, non-duplicated collections representing 31 counties and 89 localities. There are a total of 53 collectors and 82 collection dates for the species. This results in a total of 88 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 March 14 and November 28, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Agkistrodon piscivorus (Western Cottonmouth) 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
Barry 2 2 2 2 2 2007 2019
Bollinger 4 6 6 5 5 1935 2012
Butler 4 10 4 4 5 1897 1909
Camden 2 2 2 2 2 1982 1996
Cape Girardeau 1 1 1 1 1
Crawford 1 1 1 1 1
Dent 1 17 2 2 2 1909 1909
Dunklin 3 4 3 3 3 1904 1959
Henry 1 1 1 1 1 2007 2007
Hickory 1 1 1 1 1 1983 1983
Iron 1 1 1 1 1 1973 1973
Jefferson 1 1 1 1 1
Lawrence 1 1 2 1 1 1991 1991
Madison 3 3 3 3 3 1973 2006
Miller 7 47 5 8 8 1939 1975
Oregon 1 1 1 1 1 1956 1956
Ozark 2 2 5 2 2 2007 2010
Pulaski 2 2 3 1 2 1986 1986
Ripley 2 2 3 2 2 1939 2008
Saint Clair 2 4 2 2 2 1943 2009
Sainte Genevieve 1 1 1 1 1 2012 2012
Saint Louis 2 2 1 1 1 1995 1995
Scott 1 1 1 1 1 2001 2001
Shannon 3 5 4 4 4 1960 2007
Stoddard 20 52 18 25 26 1935 2016
Stone 4 4 5 4 4 2006 2010
Taney 2 2 2 2 2 1971 2014
Texas 1 1 1 1 1 1980 1980
Washington 1 1 1 1 1 1984 1984
Wayne 8 12 7 10 10 1935 2011
Wright 2 2 2 2 2 2004 2004