Squaliformes
From Wikipedia, the free encyclopedia
| Squaliformes Fossil range: Late Jurassic–Recent [1] |
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 Gulper shark, Centrophorus granulosus
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Squaliformes is an order of sharks that includes about 80 species in seven families.
Members of the order have two dorsal fins, which usually possess spines, no anal fin or nictitating membrane, and five gill slits. In most other respects, however, they are quite variable in form and size. They are found worldwide, from polar to tropical waters, and from shallow coastal seas to the open ocean.[2]
[edit] Classification
Family Centrophoridae (gulper sharks)
- Genus Centrophorus
- Genus Deania
Family Dalatiidae (kitefin sharks) (Gray, 1851)
- Genus Euprotomicroides
- Genus Heteroscymnoides
- Genus Mollisquama
- Tribe Dalatiini
- Tribe Euprotomicrini
- Genus Euprotomicrus
- Genus Squaliolus
Family Echinorhinidae (bramble sharks)
- Genus Echinorhinus
Family Etmopteridae (lantern sharks) Fowler, 1934
- Genus Aculeola
- Genus Centroscyllium
- Genus Etmopterus
- Genus Miroscyllium
- Genus Trigonognathus
Family Oxynotidae (rough sharks) Gill, 1872
- Genus Oxynotus
Family Somniosidae (sleeper sharks) Jordan, 1888
- Genus Centroscymnus
- Genus Scymnodalatias
- Genus Scymnodon
- Genus Somniosus
Family Squalidae (dogfish sharks)
- Genus Cirrhigaleus
- Genus Squalus
[edit] References
- ^ "Squaliformes". FishBase. Ed. Ranier Froese and Daniel Pauly. January 2009 version. N.p.: FishBase, 2009.
- ^ Stevens, J. & Last, P.R. (1998). Paxton, J.R. & Eschmeyer, W.N.. ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 64. ISBN 0-12-547665-5.
- Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2
- FAO Species catalogue Volume 4 Parts 1 and 2
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