Shortspine spurdog

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Shortspine spurdog
Fish4474 - Flickr - NOAA Photo Library.jpg
Conservation status

Endangered (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Superorder: Selachimorpha
Order: Squaliformes
Family: Squalidae
Genus: Squalus
Species:
S. mitsukurii
Binomial name
Squalus mitsukurii
D. S. Jordan & Snyder, 1903
Squalus mitsukurii distmap.png
Range of the shortspine spurdog
Synonyms

Squalus acutirostris Chu, Meng & Li, 1984

The shortspine spurdog (Squalus mitsukurii) is a dogfish, a member of the family Squalidae, found on continental shelves off Japan in temperate waters, from the surface to 950 m. Its length is up to 75 cm.[2]

Taxonomy[]

The shortspine dogfish was once seen as a circumglobal species by many authors, including Compagno (1984) and Last & Stevens (1994).[3][4] However, a series on papers published since 2007 have shown that a number of species synonymized with S. mitsukurii are distinct, and that the Hawaiian population of S. mitsukurii represent a distinct species, the Hawaiian spurdog.[5][6][7]

  • Head

  • Jaws

  • Upper teeth

  • Lower teeth

References[]

  1. ^ Finucci, B., Cheok, J., Cotton, C.F., Kulka, D.W., Neat, F.C., Pacoureau, N., Rigby, C.L., Tanaka, S. & Walker, T.I. 2020. Squalus mitsukurii. The IUCN Red List of Threatened Species}}
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2006). "Squalus mitsukurii" in FishBase. July 2006 version.
  3. ^ Compagno, L.J.V.,1984 FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO.
  4. ^ Last, P.R. and J.D. Stevens,1994 Sharks and rays of Australia. CSIRO, Australia. 513 p.
  5. ^ Last, P.R., White, W.T. and Motomura, H. 2007. Description of Squalus chloroculus sp. nov., a new spurdog from southern Australia, and the resurrection of S. montalbani Whitley. In: P.R Last, W.T. White and J.J. Pogonoski (eds) (eds), Descriptions of New Dogfishes of the genus Squalus (Squaloidea: Squalidae), pp: 55‒69.. CSIRO,, Australia.
  6. ^ Duffy, C.A.J. and P.R. Last, 2007. Redescription of the northern spiny dogfish Squalus griffini Phillipps, 1931 from New Zealand. pp. 91-100. In P.R. Last, W.T. White and J.J. Pogonoski Descriptions of new dogfishes of the genus Squalus (Squaloidea: Squalidae). CSIRO Marine and Atmospheric Research Paper No. 014. 130 pp.
  7. ^ Daly-Engel TS, Koch A, Anderson JM, Cotton CF, Grubbs RD (2018) Description of a new deep-water dogfish shark from Hawaii, with comments on the Squalus mitsukurii species complex in the West Pacific. ZooKeys 798: 135-157. https://doi.org/10.3897/zookeys.798.28375
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