Knifetooth dogfish

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Knifetooth dogfish
Scymnodon ringens.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squaliformes
Family: Somniosidae
Genus: Scymnodon
S. ringens
Binomial name
Scymnodon ringens
Scymnodon ringens distmap.png
Range of the knifetooth dogfish (in blue)

The knifetooth dogfish, is a harmless sleeper shark of the family Somniosidae, found in the eastern Atlantic, from Scotland to Spain, Portugal, and Senegal, and the southwest Pacific from New Zealand, between latitudes 58°N and 15°N, at depths of between 200 and 1,600 m. Its length is up to 1.1 m.[2]


  1. ^ Blasdale, T. & Valenti, S.V. 2009. Scymnodon ringens. The IUCN Red List of Threatened Species 2009: e.T161717A5487631. Downloaded on 19 October 2017.
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2014). "Scymnodon ringens" in FishBase. November 2014 version.