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Heterodontus quoyi (Fréminville, 1840)
GALAPAGOS BULLHEAD SHARK
Life   Vertebrata   Fish   Heterodontidae   Heterodontus

Heterodontus quoyi
© Copyright Photographer/SFTEP, 2002 · 0
Heterodontus quoyi

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Heterodontus quoyi
© Copyright Roger Steene, 2006 · 0
Heterodontus quoyi
español

Overview
Main identification features
  • low crest over eye
  • 1st dorsal fin origin behind pectoral
  • body spots greater than 1/2 eye
A slender-bodied shark with a large squarish pig-lke snout; low bony ridge above each eye ends gradually at rear; nostrils without barbels; with grooves around nostrils and connected to the mouth; anterior nasal flaps elongate posteriorly; small mouth with enlarged molariform teeth posteriorly; both dorsal fins with a sharp spine; origin of first dorsal fin behind pectoral fin base.

Grey or light brown with large (>1/2 eye diameter) blackish leopard- like spotting; no pale bar between eyes; dark spots or blotches under eye; a series of diffuse dark grey bars may be present across back and sides.

Size: reaches 107 cm.

Habitat: often seen resting on sand adjacent to rocky reefs.

Depth: 3-40 m.

Galapagos Islands and Ecuador to Peru.



Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 40 m.
Depth Range Min: 3 m.
Diet: bony fishes; sea-stars/cucumbers/urchins; mobile benthic gastropods/bivalves; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=2; Southern limit=-10; Western limit=-93; Eastern limit=-79; Latitudinal range=12; Longitudinal range=14.
Egg Type: Benthic; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore.
FishBase Habitat: Reef Associated.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Rocks; Sand & gravel; Reef (rock &/or coral); Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Reef and soft bottom.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 107 cm.
Regional Endemism: Island (s); Continent; Temperate Eastern Pacific, primarily; Continent + Island (s); Peruvian province, primarily; Tropical Eastern Pacific (TEP) non-endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
  • 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 sharks species known to date. Part 1. Hexanchiformes to Lamniformes. FAO Species Catalogue., FAO Fish. Synop. No 125, 4(1):1-249.
  • Edgar, G.J. Banks, S., Fariña, J.M., Calvopiña, M. and Martínez, C., 2004., Regional biogeography of shallow reef fish and macro-invertebrate communities in the Galapagos archipelago., Journal of Biogeography, 31:1107-1124.
  • 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.
  • Fréminville,., 1840., Notice sur une nouvelle espèce de poisson, appartenant au genre Cestracion de Cuvier., Mag. Zool. Guerin (Ser. 2), (Pt 5):1-3.
  • Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
  • Humann, P., 1993., Reef Fish Identification: Galapagos., New World Publishing:192pp.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • Rubio, E.A., 1986., Notas sobre la ictiofauna de la Isla de Gorgona, Colombia., Boletin Ecotropica. Univ. Bog. Jorge Tadeo Lozano, 13:86-112.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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