Squalidae

Dogfish ( Squalus acanthias )

The family of spiny dogfish ( Squalidae ) is a global, distributed in the Atlantic, Pacific and Indian Ocean. They live both in cool, as well as in tropical seas and keep on especially on the shelf areas of continents and islands and seamounts. The best-known representative is the spiny dogfish ( Squalus acanthias ), which is also found in the North Sea and the Mediterranean.

Common to all spiny dogfish is the absence of the anal fin, a feature which they have in common with the angel sharks and the Sägehaien. In front of both dorsal fins is ever an unnotched sting. The tail fins stem bears lateral keels. Spiny dogfish are between 50 centimeters and 1.20 meters long.

All spiny dogfish are ovoviviparous, that is, the embryos hatch in the womb from their egg capsules and develop in the uterus region to birth size and are then born alive. It also speaks of " aplazentaler Viviparie ".

Genera and species

There are two genera with almost 30 species:

  • Cirrhigaleus genus ( Tanaka, 1912) Rauhaut dogfish ( Cirrhigaleus asper ( Merrett, 1973))
  • Southern Mandarin mustache dogfish ( Cirrhigaleus australis (White, Last & Stevens, 2007) )
  • Mandarin mustache dogfish ( Cirrhigaleus barbifer ( Tanaka, 1912) )
  • Dogfish ( Squalus acanthias (Linnaeus, 1758) )
  • Squalus acutirostris ( Chu, Meng & Li, 1984)
  • Eastern high -finned spiny dogfish ( Squalus albifrons (Last, White & Stevens, 2007) )
  • Western high -finned spiny dogfish ( Squalus altipinnis (Last, White & Stevens, 2007) )
  • Longnose dogfish ( Squalus blainvillei ( Risso, 1827) )
  • Squalus brevirostris ( Tanaka, 1917)
  • Big-headed dogfish ( Squalus bucephalus (load, Seret & Pogonoski, 2007) )
  • Green eyes dogfish ( Squalus chloroculus (Last, White & Motomura, 2007) )
  • Fat thorn dogfish ( Squalus crassispinus (load, Edmunds & Yearsley, 2007) )
  • Cuban dogfish ( Squalus cubensis ( Howell Rivero, 1936) )
  • Edmund's dogfish ( Squalus edmundsi (White, Last & Stevens, 2007) )
  • Eastern longnose dogfish ( Squalus grahami (White, Last & Stevens, 2007) )
  • Northern spiny dogfish ( Squalus Griffini ( Phillipps, 1931) )
  • Indonesian short snouts dogfish ( Squalus hemipinnis (White, Last & Yearsley, 2007) )
  • Japanese spiny dogfish ( Squalus japonicus ( Ishikawa, 1908) )
  • Squalus lalannei ( Baranes, 2003)
  • Short noses dogfish ( Squalus megalops ( Macleay, 1881) )
  • Black-tailed spiny dogfish ( Squalus melanurus ( Fourmanoir & Rivaton, 1979) )
  • Small tips dogfish ( Squalus mitsukurii ( Jordan & Snyder, 1903) )
  • Indonesian green eyes dogfish ( Squalus mont Albanian ( Whitley, 1931) )
  • Western longnose dogfish ( Squalus nasutus (load, Marshall & White, 2007) )
  • Streif tail dogfish ( Squalus notocaudatus (Last, White & Stevens, 2007) )
  • Cyrano dogfish ( Squalus rancurelli ( Fourmanoir & Rivaton, 1979) )
  • Kermadec spiny dogfish ( Squalus raoulensis ( Duffy & Last, 2007) )
  • Squalus suckleyi ( Girard, 1854)
Squaliformes Fish fin Longnose spurdog FishBase
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