| Bluntnose sixgill shark | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Hexanchiformes |
| Family: | Hexanchidae |
| Genus: | Hexanchus |
| Species: | H. griseus
|
| Binomial name | |
| Hexanchus griseus (Bonnaterre, 1788)
| |
| |
| Range of bluntnose sixgill shark (in blue) | |
The bluntnose sixgill shark (Hexanchus griseus), often simply called the cow shark, is the largest hexanchoid shark, growing to 20 ft (6.1 m) in length.[2] It is found in tropical and temperate waters worldwide and its diet is widely varied by region.
The bluntnose sixgill is a species of sixgill sharks, of genus Hexanchus, a genus that also consists of two other species: the bigeye sixgill shark (Hexanchus nakamurai) and the Atlantic sixgill shark (Hexanchus vitulus). Through their base pairs of mitochondrial genes COI and ND2, these three species of sixgills widely differ from one another.[3]
- ^ Finucci, B.; Barnett, A.; Bineesh, K.K.; Cheok, J.; Cotton, C.F.; Dharmadi, Graham, K.J.; Kulka, D.W.; Neat, F.C.; Pacoureau, N.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Hexanchus griseus". IUCN Red List of Threatened Species. 2020: e.T10030A495630. doi:10.2305/IUCN.UK.2020-3.RLTS.T10030A495630.en. Retrieved 19 November 2021.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ "Huge deep sea shark scavenges food". Newsweek. July 23, 2019.
- ^ Daly-Engel, Toby S.; Baremore, Ivy E.; Grubbs, R. Dean; Gulak, Simon J. B.; Graham, Rachel T.; Enzenauer, Michael P. (2019-04-01). "Resurrection of the sixgill shark Hexanchus vitulus Springer & Waller, 1969 (Hexanchiformes, Hexanchidae), with comments on its distribution in the northwest Atlantic Ocean". Marine Biodiversity. 49 (2): 759–768. Bibcode:2019MarBd..49..759D. doi:10.1007/s12526-018-0849-x. ISSN 1867-1624. S2CID 46764519.