Animalia > Chordata > Elasmobranchii > Squaliformes > Somniosidae > Somniosus > Somniosus microcephalus

Somniosus microcephalus (gray shark; gurry shark; sleeper shark; Oakettle; Ground shark; Greenland shark)

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Wikipedia Abstract

The Greenland shark (Somniosus microcephalus), also known as the gurry shark, or grey shark, or by the Inuit name eqalussuaq, is a large shark of the family Somniosidae ("sleeper sharks"), closely related to the Pacific and southern sleeper sharks. The distribution of this species is mostly restricted to the waters of the North Atlantic Ocean and Arctic Ocean.
View Wikipedia Record: Somniosus microcephalus


Water Biome [1]  Pelagic, Coastal
Diet [1]  Carnivore

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Macquarie Island Nature Reserve Ia 233540 Tasmania, Australia  
Saguenay - St. Lawrence Marine Park National Marine Conservation Area II 310822 Canada
Sirmilik National Park II 5475284 Canada

Prey / Diet

Prey / Diet Overlap


Physeter macrocephalus (Sperm Whale)[3]
Somniosus microcephalus (gray shark)[3]


Parasite of 
Ommatokoita elongata[3]


Parasitized by 
Hepatoxylon trichiuri[6]
Squalonchocotyle borealis[6]


North Atlantic and Arctic: Cape Cod and the Gulf of Maine, Gulf of St. Lawrence to Ellesmere Islands, Greenland, Iceland, Spitzbergen, White Sea, and Norway to the North Sea, sometimes south to the Seine River mouth, France and maybe Portugal. South Atlantic and Southern Ocean: South Africa, Kerguelen and Macquarie islands.;

External References



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2McMeans, Bailey C., et al. "The role of Greenland sharks (Somniosus microcephalus) in an Arctic ecosystem: assessed via stable isotopes and fatty acids." Marine Biology 160.5 (2013): 1223+. Academic OneFile. Web. 14 July 2014.
3Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
4CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
5Phocoena phocoena, David E. Gaskin, Peter W. Arnold, and Barbara A. Blair, MAMMALIAN SPECIES No. 42, pp. 1-8 (1974)
6Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Abstract provided by DBpedia licensed under a Creative Commons License