Spiny dogfish

Spiny dogfish
Temporal range: Miocene-recent
Squalus acanthias stellwagen.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squaliformes
Family: Squalidae
Genus: Squalus
S. acanthias
Binomial name
Squalus acanthias
Squalus acanthias distmap.png
Range of the spiny dogfish (in blue)

The spiny dogfish (Squalus acanthias), spurdog, mud shark, or piked dogfish[2] is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order.[3]

While these common names may apply to several species, Squalus acanthias is distinguished by two spines (one anterior to each dorsal fin) and no anal fin. It lives in shallow waters and further offshore in most parts of the world, especially in temperate waters. Those in the northern Pacific Ocean were reevaluated in 2010 and found to constitute a separate species, now called the Pacific spiny dogfish (Squalus suckleyi).[4]

  1. ^ Finucci, B.; Cheok, J.; Chiaramonte, G.E.; Cotton, C.F.; Dulvy, N.K.; Kulka, D.W.; Neat, F.C.; Pacoureau, N.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Squalus acanthias". IUCN Red List of Threatened Species. 2020: e.T91209505A124551959. doi:10.2305/IUCN.UK.2020-3.RLTS.T91209505A124551959.en. Retrieved 12 November 2021.
  2. ^ "Squalus acanthias". Florida Museum. 2017-05-12. Retrieved 2018-12-03.
  3. ^ "Species Squalus acanthias Linnaeus". FishWisePro. 1758. Retrieved 18 April 2020.
  4. ^ Ebert, D. A.; White, W. T.; Goldman, K. J.; Compagno, L. J.; Daly-Engel, T. S. & Ward, R. D. (2010). "Resurrection and redescription of Squalus suckleyi (Girard, 1854) from the North Pacific, with comments on the Squalus acanthias subgroup (Squaliformes: Squalidae)". Zootaxa. 2612: 22–40. doi:10.11646/zootaxa.2612.1.2.

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