Bareskin dogfish

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 (Centroscyllium kamoharai) is a little-known, deepwater dogfish shark of the family Etmopteridae,[1][2] so far found only in the western Pacific in Suruga Bay, Honshū, Japan.

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.[3][4] 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.[5]

References

  1. ↑ Fowler (2003). "Centroscyllium kamoharai". IUCN Red List of Threatened Species. Version 2006. International Union for Conservation of Nature. Retrieved 12 May 2006. Database entry includes justification for why this species is listed as data deficient
  2. ↑ "Centroscyllium kamoharai". Integrated Taxonomic Information System. Retrieved 6 February 2006.
  3. ↑ FAO Species Catalogue Volume 4 Parts 1, Sharks of the World
  4. ↑ Froese, Rainer and Pauly, Daniel, eds. (2006). "Centroscyllium kamoharai" in FishBase. 06 2006 version.
  5. ↑ 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.


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