Bluntnose sixgill shark
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 Drawing by Dr Tony Ayling
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| Hexanchus griseus (Bonnaterre, 1788) |
The bluntnose sixgill shark, Hexanchus griseus, is the largest hexanchoid shark, growing to more than 4.8 m (15.5 ft) in length.
The bluntnose sixgill shark is ovoviviparous and has the largest litters of any hexanchoid, ranging from 22 to 108 pups, each about 70 cm (28 inches) long. This species typically inhabits depths greater than 90 m (300 feet), and has been recorded as deep as 1,875 m (6,150 ft). Like many deep-sea creatures, the bluntnose sixgill is known to undertake nightly vertical migrations (travelling surfaceward at night, returning to the depths before dawn).
[edit] References
- Shark Specialist Group (2000). Hexanchus griseus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this species is near threatened
- Hexanchus griseus (TSN 159819). Integrated Taxonomic Information System. Accessed on 23 January 2006.
- "Hexanchus griseus". FishBase. Ed. Ranier Froese and Daniel Pauly. 09 2005 version. N.p.: FishBase, 2005.
[edit] External links
- Information on H. griseus from ReefQuest Center for Shark Research
