Supriya Ghosh (Editor)

Squaliformes

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Covid-19
Kingdom  Animalia
Scientific name  Squaliformes
Phylum  Chordata
Subclass  Elasmobranchii
Superorder  Selachimorpha
Higher classification  Shark
Rank  Order
Squaliformes Squaliformes Dogfish Sharks
Lower classifications  Squalidae, Spurdog, Dalatiidae, Centrophorus, Etmopteridae

The Squaliformes are an order of sharks that includes about 126 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.

Squaliformes Today39s Lesson Sharks Album on Imgur

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
  • Genus Dalatias
  • Genus Isistius
  • Genus Euprotomicrus
  • Genus Squaliolus
  • Family Echinorhinidae Theodore Gill, 1862 (bramble sharks)

  • Genus Echinorhinus
  • Family Etmopteridae Fowler, 1934 (lantern sharks)

  • Genus Aculeola
  • Genus Centroscyllium
  • Genus Etmopterus
  • Genus Trigonognathus
  • Family Oxynotidae Gill, 1872 (rough sharks)

  • Genus Oxynotus
  • Family Somniosidae D. S. Jordan, 1888 (sleeper sharks)

  • Genus Centroscymnus
  • Genus Centroselachus
  • Genus Scymnodalatias
  • Genus Scymnodon
  • Genus Somniosus
  • Genus Zameus
  • Family Squalidae Blainville, 1816 (dogfish sharks)

  • Genus Cirrhigaleus
  • Genus Squalus


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    Squaliformes Shark Defenders ACTION ALERT Testimony needed to add Squaliformes

    References

    Squaliformes Wikipedia


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