Bareskin dogfish

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Bareskin dogfish
Bareskin dogfish.gif
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Division: Selachii
Order: Squaliformes
Family: Etmopteridae
Genus: Centroscyllium
Species:
C. kamoharai
Binomial name
Centroscyllium kamoharai
T. Abe, 1966
Centroscyllium kamoharai distmap.png
Range bareskin dogfish (in blue)

The bareskin dogfish (Centroscyllium kamoharai) is a little-known, deepwater dogfish shark of the family Etmopteridae. [1] [2] This species is found in the western Pacific from southern Japan to western and southeastern Australia as well as in New Zealand waters. [3]

The bareskin dogfish has no anal fin. It has grooved dorsal spines with the second larger than the first, a smaller first dorsal fin, blunt nose, large eyes, large nostrils, widely spaced and sparse denticles, and is dark in color with white-tipped fins. It is stout and grows to a maximum of 40 cm. [4] [5] Like other species in the family Etmopteridae (lanternsharks), the bareskin dogfish has a bioluminescent organ on the ventral side; however, perhaps owing to the depth at which the species lives, it has relatively fewer photophores on its ventral skin than other bioluminescent sharks. [6]

Conservation status

The New Zealand Department of Conservation has classified the bareskin dogfish as "Data Deficient" under the New Zealand Threat Classification System. [7]

References

  1. 1 2 Finucci, B.; Kyne, P.M. (2018). "Centroscyllium kamoharai". IUCN Red List of Threatened Species . 2018: e.T41746A68615299. doi: 10.2305/IUCN.UK.2018-2.RLTS.T41746A68615299.en . Retrieved 18 November 2021.
  2. "Centroscyllium kamoharai". Integrated Taxonomic Information System . Retrieved 6 February 2006.
  3. Roberts, Clive; Stewart, A. L.; Struthers, Carl D.; Barker, Jeremy; Kortet, Salme; Freeborn, Michelle (2015). The fishes of New Zealand. Vol. 2. Wellington, New Zealand: Te Papa Press. p. 141. ISBN   9780994104168. OCLC   908128805.
  4. FAO Species Catalogue Volume 4 Parts 1, Sharks of the World
  5. Froese, Rainer; Pauly, Daniel (eds.). "Centroscyllium kamoharai". FishBase . June 2006 version.
  6. Claes, Julien M.; Nilsson, Dan-Eric; Straube, Nicolas; Collin, Shaun P.; Mallefet, Jérôme (Mar 10, 2014). "Iso-luminance counterillumination drove bioluminescent shark radiation". Scientific Reports. 4: 4328. Bibcode:2014NatSR...4.4328C. doi:10.1038/srep04328. PMC   3948070 . PMID   24608897.
  7. Duffy, Clinton A. J.; Francis, Malcolm; Dunn, M. R.; Finucci, Brit; Ford, Richard; Hitchmough, Rod; Rolfe, Jeremy (2018). Conservation status of New Zealand chondrichthyans (chimaeras, sharks and rays), 2016 (PDF). Wellington, New Zealand: Department of Conservation. p. 9. ISBN   9781988514628. OCLC   1042901090.