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A giant salamander (Cryptobranchus alleganiensis) of North America that inhabits large, swiftly flowing streams with rocky bottoms.

Hellbender – Temporal range: – Middle Pleistocene – present (~625,000–0 YBP) – Conservation status – Vulnerable (IUCN 3.1) – CITES Appendix III – Scientific classification – Kingdom: Animalia – Phylum: Chordata – Class: Amphibia – Order: Urodela – Family: Cryptobranchidae – Genus: Cryptobranchus – Leuckart, 1821 – Species: C. alleganiensis – Binomial name – Cryptobranchus alleganiensis – (Daudin, 1803) – Subspecies – C. a. alleganiensis (Daudin, 1803), eastern hellbender – C. a. bishopi (Grobman, 1943), Ozark hellbender – Hellbender total range (both subspecies) – Synonyms – List – Salamandra alleganiensis Daudin, 1803 – Salamandra horrida Barton, 1808 – Salamandra gigantea Barton, 1808 – Salamandra maxima Barton, 1808 – Molge gigantea Merrem, 1820 – Cryptobranchus salamandroides Leuckart, 1821 – Urotropis mucronata Rafinesque, 1822 – Abranchus alleghaniensis Harlan, 1825 – Protonopsis horrida Barnes, 1826 – Salamandrops gigantea Wagler, 1830 – Eurycea mucronata Rafinesque, 1832 – Menopoma fuscum Holbrook, 1842 – Cryptobranchus alleghaniensis Cope, 1887 – Cryptobranchus alleganiensis Stejneger & Barbour, 1917 – Cryptobranchus terrasodactylus Wellborn, 1936 – Cryptobranchus bishopi Grobman, 1943 – Cryptobranchus guildayi Holman, 1977.