Bareskin dogfish

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]

Bareskin dogfish
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squaliformes
Family: Etmopteridae
Genus: Centroscyllium
Species:
C. kamoharai
Binomial name
Centroscyllium kamoharai
T. Abe, 1966
Range bareskin dogfish (in blue)

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 others 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. Finucci, B. & Kyne, P.M. 2018. Centroscyllium kamoharai. The IUCN Red List of Threatened Species 2018: e.T41746A68615299. https://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T41746A68615299.en. Downloaded on 27 December 2018.
  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. 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 and Pauly, Daniel, eds. (2006). "Centroscyllium kamoharai" in FishBase. 06 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. 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.


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