Hexanchus
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| Hexanchus | |
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| Bluntnose sixgill shark (Hexanchus griseus) | |
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| Genus: | Hexanchus Rafinesque, 1810
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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 8 m 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
- 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
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Retrieved 2008-01-09.
{{cite journal}}: Cite has empty unknown parameter:|coauthors=(help) - ^ Kindersley, Dorling (2001,2005). Animal. New York City: DK Publishing. ISBN 0-7894-7764-5.
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- "Hexanchus". Integrated Taxonomic Information System. Retrieved 6 June 2006.
