Hexanchus
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| Hexanchus |
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| File:Hexanchus griseus (Bluntnose sixgill shark).gif | |
| Bluntnose sixgill shark (Hexanchus griseus) |
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Hexanchus
Rafinesque, 1810
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| Species | |
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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 5 m (18 ft) long and weigh over 600 kg (1320 lb).[2] 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).[citation needed]
Extant species
- Hexanchus griseus Bonnaterre, 1788 (bluntnose sixgill shark)
- Hexanchus nakamurai Teng, 1962 (bigeyed sixgill shark)
Extinct species
File:Hexanchidae - Hexanchus andersoni.JPG
Fossil teeth of Hexanchus andersoni from Jurassic
- Hexanchus agassizi Cappetta, 1976
- Hexanchus andersoni Jordan, 1907
- Hexanchus casieri Kozlov, 1999
- Hexanchus collinsonae Ward, 1979
- Hexanchus gracilis Davis, 1887
- Hexanchus hookeri Ward, 1979
- Hexanchus microdon Agassiz, 1843
- Hexanchus tusbairicus Kozlov in Zhelezko & Kozlov, 1999
See also
References
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External links
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