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Centroscyllium kamoharai

(Bareskin Dogfish)

Overview

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Family : Sleeper sharks ; Found on the continental slope [1]. Little is known of its biology ; presumably ovoviviparous[1].

Common Names

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Click on the language to view common names.

Common Names in Dutch:

Naakte Lantaarnhaai

Common Names in English:

Bareskin Dogfish, Jelly Shark

Common Names in French:

Aiguillat Grosse Tte, Aiguillat Lisse

Common Names in Japanese:

Hadaka-Kasumizame

Common Names in Mandarin Chinese:

蒲原氏霞鯊, 蒲原氏霞鯊, 蒲原氏霞鲨

Common Names in Spanish:

Tollo Negro Liso

Description

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Family Dalatiidae

Distribution: Antarctic to Arctic , Northern and Southern Hemisperes, coastal and oceanic . Includes four subfamilies (Etmopterinae, Somniosinae, Oxynotinae, and Dalatiinae). Except in Etmopterinae , most members without spines in dorsal fin; luminous organs present (except in Somniosus pacificus), appearing as black dots mainly on ventral surface. Etmopterinae has grooved spines in both dorsal fins, caudal fin with subterminal notch . Oxynotinae has very high, and compressed body, triangular in cross section ; dorsal fins very high, each with a spine[2]. The subfamilies are sometimes separated as independent families by various authors : Oxynotidae[3]; Somniosidae (dorsal fins without spines, first dorsal fin originating in front of pelvic fins but much closer to pectoral fins) and Etmopteridae (dorsal fin with spines, teeth with prominent central cusp flanked by one or two smaller cusplets )[4] . Dalatiidae has dorsal fins without spines, first dorsal fin originating in front of pelvic fins but much closer to pelvic fins[4].The family Dalatiidae belongs to the Class Elasmobranchii (sharks and rays ) and the Order Squaliformes. It contains 18 genera and 49 species. It may be found in Marine environments and is primarily Marine. Members of this family are not used in the aquarium trade. Reproductively, most members of this family are bearers. The main mode of swimming of adult fish in this family is subcarangiform. Etymology of this family name : Greek, dalos, -ou = torch

Habitat

May be found at depths of 730 to 1200 meters. Usually found at depths of 900 to 1200 meters.

Biome: Saltwater . Bathydemersal .

Ecology: Habitat : on or near bottom on continental and insular slopes and seamounts , depth range 500 to 1,200 m. A little-known deepwater dogfish. Matures at 40 to 45 cm, maximum length 60 cm, litters of 3 to 22 pups , average 12. No seasonal reproductive cycle, no information on annual fecundity , gestation period , age at maturity or longevity . Like other deepwater dogfishes, this species likely has a very low resilience to depletion and a low intrinsic rate of population increase, hence highly vulnerable to bycatch in deepwater fisheries.


List of Habitats:9.1Marine Neritic - Pelagic 10.1Marine Oceanic - Epipelagic (0-200m)

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: Group expert : Compagno L.J.V., Data last modified by FishBase 25-Jun-1997

Similar Species

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Members of the genus Centroscyllium

There are approximately 12 species in this genus:

C. excelsum (Highfin Dogfish) · C. fabricci · C. fabrici · C. fabricii (Black Dogfish) · C. granulatum (Granular Dogfish) · C. nigrum · C. kamoharai (Bareskin Dogfish) · C. nigrum (Pacific Black Dogfish) · C. ornatum (Ornate Dogfish) · C. retteri · C. ritteri (Whitefin Dogfish) · C. ruscosum

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal March 01, 2008:

Identifiers

Footnotes

  1. Last, P.R. and J.D. Stevens (1994). Sharks and rays of Australia. CSIRO, Australia. 513 p. [back]
  2. Wheeler, A. (1977). Das grosse Buch der Fische. Eugen Ulmer GmbH & Co. Stuttgart. 356 p. [back]
  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, Vol. 4, Part 1), 249 p. [back]
  4. Ebert, D.A. (2003). Sharks, rays and chimaeras of California. California Natural History Guides No. 71. University of California Press, 284pp. [back]
Last Revised: 2009-04-24