Cryptobranchus alleganiensis (Hellbender)

Maps

Locality Map

Locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

County Map

County map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Historical Locality Map

Historical locality map for Cryptobranchus alleganiensis (Hellbender). 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 6 March 2024.

Historical County Map

Historical county map for Cryptobranchus alleganiensis (Hellbender). 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 6 March 2024.

Ecological Drainage Locality Map

Ecological Drainage Units map for Cryptobranchus alleganiensis (Hellbender)
Ecological Drainage Units locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Natural Divisions Locality Map

Natural Divisions locality map for Cryptobranchus alleganiensis (Hellbender)
Natural Divisions and Sections locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Major Watersheds Locality Map

Major watersheds map for Cryptobranchus alleganiensis (Hellbender)
Major Watersheds locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Level I Ecoregion Locality Map

Level I Ecoregions map for Cryptobranchus alleganiensis (Hellbender)
Level I Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Level II Ecoregion Locality Map

Level II Ecoregions map for Cryptobranchus alleganiensis (Hellbender)
Level II Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Level III Ecoregion Locality Map

Level III Ecoregions map for Cryptobranchus alleganiensis (Hellbender)
Level III Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Cryptobranchus alleganiensis (Hellbender)
Level IV Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 6 March 2024.

Native Status

Cryptobranchus alleganiensis (Hellbender) is native to Missouri.

Collection Summary

Cryptobranchus alleganiensis (Hellbender) has a total of 296 valid, non-duplicated collections representing 19 counties and 82 localities. There are a total of 56 collectors and 92 collection dates for the species. This results in a total of 103 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 2022. 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	6	8	7	4	7	1956	2022
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	14	102	15	22	24	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

Potential County Records

Potential counties for *Cryptobranchus alleganiensis* (Hellbender). 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	Christian	Same watershed, within 5 miles	James
2	Greene	Same watershed, within 5 miles	James
2	Howell	Same watershed, within 5 miles	North Fork White
4	Reynolds	Same watershed, within 10 miles	Current
4	Saint Louis	Same watershed, within 10 miles	Meramec
4	Stone	Same watershed, within 10 miles	James
6	Barry	Same watershed, within 20 miles	James
6	Benton	Same watershed, within 20 miles	Niangua
6	Butler	Same watershed, within 20 miles	Current
6	Hickory	Same watershed, within 20 miles	Niangua
6	Lawrence	Same watershed, within 20 miles	James
6	Washington	Same watershed, within 20 miles	Meramec
6	Webster	Same watershed, within 20 miles	James
6	Webster	Same watershed, within 20 miles	Niangua
6	Wright	Same watershed, within 20 miles	North Fork White
8	Iron	Same watershed, within 30 miles	Meramec

Linnaean Classification

Kingdom:: Animalia - Animals
Phylum:: Chordata - Chordates
Subphylum:: Vertebrata - Vertebrates
Class:: Amphibia Gray, 1825 - Amphibians
Order:: Caudata Scopoli, 1777 - Salamanders
Family:: Cryptobranchidae Fitzinger, 1825 - Giant Salamanders
Genus:: Cryptobranchus Leuckart, 1821 - Hellbenders
Species:: Cryptobranchus alleganiensis (Daudin, 1803) - Hellbender

Recent Taxonomic Synonyms

(none)

Missouri Herpetological Atlas Project

Cryptobranchus alleganiensis (Daudin, 1803) - Hellbender