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Hexanchus

Hexanchus
Temporal range: 196–0 Ma
Sinemurian to present
Hexanchus griseus (Bluntnose sixgill shark).gif
Bluntnose sixgill shark
(Hexanchus griseus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Hexanchiformes
Family: Hexanchidae
Genus: Hexanchus
Rafinesque, 1810
Species

See text.


See text.

The sixgill sharks are a genus, Hexanchus, of deepwater sharks in the family Hexanchidae. These sharks are characterized by a broad, pointed head, six pairs of gill slits, comb-like, yellow lower teeth, and a long tail. It can grow up to 8 m long and weigh over 600 kg (1320 lb). They are abyssal plain scavengers with a keen sense of smell and are among the first to arrive at carrion, together with hagfish and rattails. They show a characteristic rolling motion of the head when feeding. They have been found at depths to 2,500 ft (760 m).


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