Hexanchus griseus

(BONNATERRE, 1788)


Bluntnose sixgill shark
Classification: Elasmobranchii Hexanchiformes Hexanchidae

Reference of the original description
BONNATERRE, J.P. (1788)
Ichthyologie. Tableau encyclopédique et méthodique des trois règnes de la nature. Paris, 215 p., pl. A–B + 1–100.

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Hexanchus aff. griseus, Hexanchus anomalus, Hexanchus cf. griseus, Hexanchus corinum, Hexanchus corinus, Hexanchus danconae, Hexanchus gigas, Hexanchus griseus australis , Hexanchus meneghinii, Hexanchus problematicus, Hexanchus targionii, Notidanus anomale, Notidanus cf. gigas, Notidanus d'anconae, Notidanus gigas, Notidanus griseus, Notidanus meneghinii, Notidanus problematicus, Notidanus stoppani, Notidanus targionii, Notidanus urcianensis, Notidanus (Hexanchus) corinus, Notidanus (Hexanchus) griseus, Notorynchus griseus, Squalus griseus, Squalus vacca

Types
Hexanchus griseus

Hexanchus corinus
Holotype: USNM: 27369;
Hexanchus griseus australis
Holotype: EBMC: 10365


Description :


Citation: Hexanchus griseus (BONNATERRE, 1788): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2017

Please send your images of "Hexanchus griseus" to info@shark-references.com

Hexanchus griseus (BONNATERRE, 1788), © FAO, Food and Agriculture Organization of the United Nations, Ebert, D.A. 2014. On Board Guide for the Identification of Pelagic Sharks and Rays of the Western Indian Ocean. Reproduced with permission, illustration by Marc Dando, Wildlife Illustrator
Common names
deu \(T\) Grauhai, deu \(T\) Großer Grauhai, deu \(T\) Notidan, deu \(T\) Rotbraunhai, deu \(T\) Rotgrauhai, deu \(T\) Sechskiemer, deu \(T\) Speckfisch, deu \(T\) Stierhai, deu \(T\) Stumpfnasen-Sechskiemenhai, spa Albafara, spa Albajar, spa Bastriuvaca, spa Boca dolça, spa Boquidulce, spa Cañabota, spa Cañabota cañabota gris, spa Cañabota gris, spa Gato de mar, spa Marfara, spa Marrajo, spa Peix xovato, spa Tiburón cañabota, spa Tiburón de seis agallas, spa Tiburón de seis branquias, spa Tiburón gris, fra \(T\) Arbano, fra \(T\) Bouca douça, fra \(T\) Bouche douce, fra \(T\) Chien de mer, fra \(T\) Griset, fra \(T\) Mounge gris, fra \(T\) Requin griset, fra \(T\) Requin grisé, eng Atlantic mud shark, eng Atlantic mudshark, eng Bluntnose sixgill shark, eng Brown shark, eng Bull dog shark, eng Bull shark, eng Cow shark, eng Gray shark, eng Grey shark, eng Mud shark, eng Six-gill shark, eng Six-gilled shark, eng Sixgill cow shark, eng Sixgill shark, eng Sixgilled shark, ita Notidano grigio, ita Pesce manzo, ita Pesce mbove, ita Squalo capochiatto, ita Squalo capopiatto, ita Testa piatta, por Albafar, por Albafora, por Canhabota cinzenta, por Cação-bruxa, por Olho-verde, por Tubarao-albafar

Short Description
A heavily-bodied, broad-headed sixgill shark, mouth ventral with 6 rows of lower, bladelike, comb-shaped teeth on each side [518]. Snout broadly rounded, body fusiform [1388]. Anal fin smaller than dorsal fin [1388]. Brown or grey above, paler below, with a light stripe along side [578]. Fins with white edges [20040]. Live specimens with fluorescent green eyes [1388]. Six gill slits are very long [20241].

Distribution
Circumglobal: In tropical and temperate waters; [544]. Western Atlantic: North Carolina to Florida (USA) and northern Gulf of Mexico to northern Argentina. Eastern Atlantic: Iceland and Norway to Namibia, including the Mediterranean. Indian Ocean: Madagascar, Mozambique, and South Africa. Western Pacific: eastern Japan to New Zealand and Hawaii. Eastern Pacific: Aleutian Islands, Alaska to Baja California, Mexico; also Chile . Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea [20076] (Ref. 41819).
First records: 2014: southern Coastal Waters of Oman in the Arabian Sea [20606]; Source: www.gbif.org

Human uses
fisheries: commercial; gamefish: yes

Biology
Ovoviviparous, litters very large, 22 to 108 [518]. Size at birth 60-75 cm [578]. Distinct pairing with embrace [17086]. Depth range reported at 0m-2000m. A deepwater species of the outer continental and insular shelves and upper slopes [1388] (Ref. 75154). Near bottom, occasionally pelagic, adults usually below 91 m [17640]. Juveniles may be found close inshore [1388]. Found on the bottom by day, moving to the surface at night to feed, and where it may take longlines set for other species [432]. Depth distribution related to growth and temperature, with juveniles having most shallow records and from colder, poleward regions [17640]. Feeds on a wide range of marine organisms, including other sharks, rays, chimaeras, bony fish, squids, crabs, shrimps, carrion, and even seals. Is a eurytrophic predator that is capable of exploiting a wide range of prey species and habitats [754]. A vertical migrant, it may sit on the bottom by day, and rise to the surface at night to feed [518].

Size / Weight / Age
482 cm TL (male/unsexed; [518]); max. published weight: 590.0 kg [20202], born at 65-70 cm [3365]

Habitat
bathydemersal; oceanodromous [17660]; marine; depth range 1 - 2500 m [17640], usually 180 - 1100 m [432]

Dentition
20/13 [18-20/13] [3365]

Parasites (arranged by Jürgen Pollerspöck)
Monogenea
Cestoda
Trematoda
  • Otodistomum veliporum (CREPLIN, 1837) STAFFORD, 1904 [753]

Nematoda
Acanthocephala
Copepoda
  • Achtheinus oblongus WILSON, 1908 [7660] [15303]
  • Caligus lessonius RISSO, 1826 [16609]
  • Demoleus heptapus (OTTO, 1821) [14785] [16609]
  • Lepeophtheirus salmonis (KRØYER, 1837) [8059]
  • Nemesis robusta (VAN BENEDEN, 1851) [16609]
  • Pandarus bicolor LEACH, 1816 [753]
  • Protodactylina pamelae LAUBIER, MAILLARD & OLIVER, 1966 [16609]

Isopoda
  • Aega bicarinata LEACH, 1818 [23898]