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Higher taxa:  Life   Vertebrata   Fish   Hexanchidae   Hexanchus   Global map IDnature guides: Fish, Fish_species_NCSM, SFTEP We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use. Taiwan Biodiversity National Information Network FishBase

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© Copyright Photographer/SFTEP, 2002 Hexanchus griseus	© Copyright Ross Robertson, 2006 Hexanchus griseus

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Overview

Main identification features use genus Six large gill slits, none over pectoral base; head and snout wide, rounded; eyes relatively small; upper teeth small, with 1 large oblique point; lower teeth large, wide with saw-like row of small teeth along top; 1 dorsal fin, at rear of body near tail; tail with small lower lobe. Grey to black above, paler to white below, no dark spots. Size: 482 cm. Habitat: bottom and mid-water. Depth: 0-3000 m. A warm to cold temperate, circumglobal species that enters the northern and southern fringes of our region (southern Baja California and southern Colombia to Peru). Attributes Abundance: Common. Cites: Not listed. Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ); Antitropical (North and South temperate). Depth Range Max: 3000 m. Depth Range Min: 0 m. Diet: sea snakes/mammals/turtles/birds; mobile benthic crustacea (shrimps/crabs); octopus/squid/cuttlefish; sharks/rays; bony fishes. Eastern Pacific Range: Northern limit=49; Southern limit=-42; Western limit=-124; Eastern limit=-73; Latitudinal range=91; Longitudinal range=51. Egg Type: Live birth; No pelagic larva. Feeding Group: Carnivore. FishBase Habitat: Bentho-Pelagic. Global Endemism: Circumtropical ( Indian + Pacific + Atlantic Oceans); East Pacific + Atlantic (East +/or West); Transisthmian (East Pacific + Atlantic of Central America); East Pacific + all Atlantic (East+West); All Pacific (West + Central + East); TEP non-endemic; "Transpacific" (East + Central &/or West Pacific); All species. Habitat: Reef associated (reef + edges-water column & soft bottom); Sand & gravel; Rocks; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Reef (rock &/or coral); Reef and soft bottom; Water column. Inshore Offshore: In & Offshore; Offshore; Inshore. IUCN Red List: Near threatened; Listed. Length Max: 482 cm. Regional Endemism: Continent; Tropical Eastern Pacific (TEP) non-endemic; Eastern Pacific non-endemic; Continent only; California + Peruvian provinces, primarily; Temperate Eastern Pacific, primarily; All species. Residency: Vagrant. Salinity: Marine; Marine Only. Water Column Position: Bottom; Near Bottom; Bottom + water column;

Names

Scientific source:       Integrated Taxonomic Information System

Links to other sites

Fishbase Catalog of Fishes Integrated Taxonomic Information System

References

Acevedo , G. , Rubio , E. A. and Zapata, L. A., 1998., Primer hallazgo del tiburon cañabota Hexanchus griseus (Bonaterre, 1788) (Pisces: Chondrichthyes, Hexanchidae) en aguas del pacifico tropical americano., Bol. Invest. Mar. Cost., 27:39-44. Bonnaterre, J. P., 1788., Tableau encyclopédique et méthodique des trois règnes de la nature... Ichthyologie. Paris., Tabl. Encyclop. Méthod. Ichthyol., :1-215. Compagno, L.J.V., 1999., Checklist of living elasmobranchs. In Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The John Hopkins University Press:471-498. Eschmeyer , W. N. , Herald , E. S. and Hamman, H., 1983., A field guide to Pacific coast fishes of North America from the Gulf of Alaska to Baja California. Peterson Field Guide Ser. 28., Houghton Mifflin:336pp. Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200. Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.

Acknowledgements

Ross Robertson, Smithsonian Tropical Research Institute I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.