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Cryptobranchus alleganiensis (Daudin, 1803) - Hellbender


Collection Summary

Cryptobranchus alleganiensis (Hellbender) has a total of 280 valid, non-duplicated collections representing 19 counties and 77 localities. There are a total of 53 collectors and 87 collection dates for the species. This results in a total of 95 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1896 and its most recent collection year is 2007. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 10 and November 14, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Cryptobranchus alleganiensis (Hellbender) 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
Camden 2 3 1 2 2 1934 1946
Carter 3 9 7 7 7 1930 1967
Crawford 3 10 2 4 4 1975 1987
Dallas 15 67 11 19 20 1953 1986
Dent 1 2 2 2 2 1909 1932
Douglas 2 2 2 2 2 1948 1969
Franklin 2 2 2 2 2 2004 2004
Gasconade 1 1 4 1 1 2006 2006
Jefferson 1 1 1 1 1
Laclede 4 6 5 3 5 1956 2002
Maries 1 1 4 1 1 2007 2007
Oregon 7 24 10 9 10 1900 1990
Osage 1 1 1 1 1 1983 1983
Ozark 12 92 12 19 20 1964 2006
Phelps 3 6 3 5 5 1896 1986
Pulaski 7 22 6 7 7 1950 1987
Ripley 1 1 3 1 1 2004 2004
Shannon 3 5 3 3 3 1962 1988
Texas 5 11 7 5 5 1953 2003