Maps
Locality Map
Locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
County Map
County map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
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 5 February 2019.
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 5 February 2019.
Ecological Drainage Locality Map
Ecological Drainage Units locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Natural Divisions Locality Map
Natural Divisions and Sections locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Major Watersheds Locality Map
Major Watersheds locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Level I Ecoregion Locality Map
Level I Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Level II Ecoregion Locality Map
Level II Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Level III Ecoregion Locality Map
Level III Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Level IV Ecoregion Locality Map
Level IV Ecoregion locality map for Cryptobranchus alleganiensis (Hellbender).
Map created 5 February 2019.
Native Status
Cryptobranchus alleganiensis (Hellbender) is native to Missouri.
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
| 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 |
Potential County Records
| Likelihood | County | Rationale | Ecoregion / Watershed | |
|---|---|---|---|---|
 | 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 |
 | 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 | Washington | Same watershed, within 20 miles | Meramec |
| 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)