White-tailed scymnodalatia [1] ( lat. Scymnodalatias albicauda ) is a species of the scimnodalaty genus of the somnius shark family of the cataract - like order . It lives in isolated places in the Southern Ocean and is found at a depth of 510 m. It is known for only a few samples. The maximum recorded size is 111 cm. Propagated by egg-born [2] . Not of interest for commercial fishing.
| White-tailed scymnodalatia |
| Scientific classification |
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| No rank : | Bilateral symmetrical |
| View: | White-tailed scymnodalatia |
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| International scientific name |
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Scymnodalatias albicauda Taniuchi & Garrick , 1986 |
| Area |
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| Security status |
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Not enough data IUCN Data Deficient : 41855 |
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Content
The scientific species was first described in 1986 [3] . The holotype is a female with a length of 91.4 cm, caught in 1967 in the southern Indian Ocean (45 ° S and 92 ° E) by a longline tunse vessel at a depth of 150-200 m. Paratyp is a female with a length of 107, 4 cm, caught by a trawler in 1979 in the South Pacific (49 ° 27 'S 174 ° 00' E) at a depth of 512 m [4] . Species epithet comes from the words lat. albus - "white" and lat. cauda - “tail” [5] .
White-tailed scymnodalatia are rarely found in the Southern Ocean, as well as off the coast of Australia and New Zealand, at a depth of 150 to 510 m [6] .
The maximum recorded size is 111 cm. These sharks have small dorsal fins, pectoral fins in the shape of a triangle, asymmetrical caudal fin, and the tip of the upper caudal lobe is colored dark [7] . The color is gray and white. The body is covered with large brown and black spots [6] .
White-tailed scymnodalatia reproduce by oviparous birth. There are at least 59 newborns in the litter [6] . Females reach puberty at a length of 74 cm [8] .
The view is not of interest to commercial fishing. It is extremely rare. Sometimes, by- catch is caught in the tunnels. There is insufficient data to evaluate the conservation status of the species by the International Union for Conservation of Nature [8] .
- ↑ Reshetnikov Yu.S. , Kotlyar A.N. , Russ T.S. , Shatunovsky M.I. The Bilingual Dictionary of Animal Names. Fish. Latin, Russian, English, German, French. / edited by Acad. V. E. Sokolova . - M .: Rus. Yaz., 1989 .-- S. 36 .-- 12,500 copies. - ISBN 5-200-00237-0 .
- ↑ Breder, CM and DE Rosen. Modes of reproduction in fishes. - TFH Publications, Neptune City. - New Jersey, 1966.
- ↑ Tanuchi, T. & Garrick, JAF (1986) A new species of Scymnodalatias from the southern oceans, and comments on other squaliform sharks. Japanese Journal of Ichthyology, 33 (2): 119-134
- ↑ Scymnodalatias albicauda (neopr.) . Shark-References.com. Date of treatment September 6, 2013.
- ↑ My etymology. A universal etymology dictionary (unopened) (link unavailable) . Date of treatment September 6, 2013. Archived July 31, 2013.
- ↑ 1 2 3 Cox, G. and M. Francis. Sharks and rays of New Zealand .. - Canterbury Univ. Press, Univ. of Canterbury, 1997.
- ↑ Last, PR and JD Stevens. Sharks and Rays of Australia. - 3rd. - Harvard University Press, 1994. - ISBN 0674034112 .
- ↑ 1 2 Duffy, C. (SSG Australia & Oceania Regional Workshop, March 2003) 2003. Scymnodalatias albicauda. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. <www.iucnredlist.org>. Downloaded on 06 September 2013.
