Main identification features
- snout long, pointed
- 1st dorsal fin high, origin just behind pectoral insertion
- high crest between 1st dorsal fin and 2nd dorsal fin
- top front teeth long, triangular, serrated
- pectoral: long
Snout long, and slightly pointed, the length in front of the mouth 7.5-10.0% of total length; ridge present on back between dorsal fins; origin of first dorsal fin over front corner of pectoral base or behind it to almost as far back as halfway along inner pectoral margin; height of first dorsal 8.3-11.9% of total length; apex of first dorsal bluntly pointed; origin of second dorsal fin behind origin of anal fin; pectoral fin large.
Grey, becoming whitish below; distal ends of all fins except pelvics dusky, with pigment on tips of pectorals darker on underside of fins.
Reaches 300 cm; size at birth 65-80 cm.
Habitat: offshore, bottom living, juveniles shallow water.
Depth: at 25-500 m, usually below 90 m.
Circumglobal distribution in temperate and tropical seas; Baja and the Gulf of California to southern Mexico, Costa Rica to Peru, the Galapagos and Revillagigedos.
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ); Antitropical (North and South temperate).
Depth Range Max: 500 m.
Depth Range Min: 25 m.
Diet: octopus/squid/cuttlefish; bony fishes; sharks/rays.
Eastern Pacific Range: Northern limit=32; Southern limit=-9; Western limit=-115; Eastern limit=-78; Latitudinal range=41; Longitudinal range=37.
Egg Type: Live birth; No pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
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: Water column.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 300 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); Eastern Pacific non-endemic; Tropical Eastern Pacific (TEP) non-endemic; All species.
Residency: Resident.
Salinity: Brackish; Marine.
Water Column Position: Near Bottom; Water column only;
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- Bellido-Millán, J.M. and Villavicencio-Garayzar, C.J., 2002., Pesqueria artesanal de tiburon en la region central del Golfo de California. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:143-152.
- Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
- Castro-Aguirre, J.L. and Balart, E.F., 2002., La ictiofauna de las islas Revillagigedos y sus relaciones zoogeograficas, con comentarios acerca de su origen y evolucion. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:153-170.
- 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.
- Compagno, L.J.V., 1984., Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Part 2. Carcharhiniformes. FAO Species Catalogue., FAO Fish. Synop. No 125, 4(2):251-655.
- Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo . Derechos reservados de los autores y Conservación Internacional.
- 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.
- Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
- Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.
- 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.
- Springer, S., 1950., A revision of North American sharks allied to the genus Carcharhinus., Amer. Mus. Novit., (1451):1-13.
- Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.
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Phylum Chordata 
Class Chondrichthyes 
The Fish Database of Taiwan
FishBase
Discover Life
World Register of Marine Species 
