| Squaliformes Temporal range: Late Jurassic–Recent[1] |
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| Velvet belly lantern shark (Etmopterus spinax) |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Superorder: | Selachimorpha |
| Order: | Squaliformes Goodrich, 1909 |
Squaliformes is an order of sharks that includes about 97 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]
Classification
Family Centrophoridae Bleeker, 1859 (gulper sharks)
- Genus Centrophorus
- Genus Deania
Family Dalatiidae (J. E. Gray, 1851) (kitefin sharks)
- Genus Euprotomicroides
- Genus Heteroscymnoides
- Genus Mollisquama
- Tribe Dalatiini
- Tribe Euprotomicrini
- Genus Euprotomicrus
- Genus Squaliolus
Family Echinorhinidae Gill, 1862 (bramble sharks)
- Genus Echinorhinus
Family Etmopteridae Fowler, 1934 (lantern sharks)
- Genus Aculeola
- Genus Centroscyllium
- Genus Etmopterus
- Genus Miroscyllium
- Genus Trigonognathus
Family Oxynotidae Gill, 1872 (rough sharks)
- Genus Oxynotus
Family Somniosidae D. S. Jordan, 1888 (sleeper sharks)
- Genus Centroscymnus
- Genus Centroselachus
- Genus Proscymnodon
- Genus Scymnodalatias
- Genus Scymnodon
- Genus Somniosus
- Genus Zameus
Family Squalidae Blainville, 1816 (dogfish sharks)
- Genus Cirrhigaleus
- Genus Squalus
References
- ^ Froese, Rainer, and Daniel Pauly, eds. (2009). "Squaliformes" in FishBase. January 2009 version.
- ^ 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.
Further reading
- Compagno; Dando & Fowler (2005), Sharks of the World, New Jersey: Princeton University Press, ISBN 0691120722
- FAO Species catalogue Volume 4 Parts 1 and 2
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