Parascyllium elongatum is a species of the genus of collar sharks of the same family of the Wobbegong species. It lives in the eastern part of the Indian Ocean at a depth of up to 50 m. The maximum recorded size is 42.1 cm. Propagated by egg production . It is not an object of commercial fishing [1] .
| Parascyllium elongatum |
| Scientific classification |
|---|
| No rank : | Bilateral symmetrical |
| View: | Parascyllium elongatum |
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| International Scientific Name |
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Parascyllium elongatum Last & Stevens, 2008 |
| Security status |
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Not enough data IUCN Data Deficient : 195440 |
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Content
The species was first scientifically described in 2007. The holotype is a 42.1 cm long female found in the stomach of a soup shark caught off Chatham Island in 1990 (35 ° 02 'S 116 ° 28' E) at a depth of 50 m [2] . This is currently the only individual of this species. Species epithet comes from the word lat. elongatus - “elongated”. It was previously believed that 4 species belong to the genus of collar sharks. However, an individual was found morphologically different from these species with a very short head, the absence of a dark “necklace” in the gill zone and vertical stripes formed by white spots covering the body [3] .
Parascyllium elongatum live in the southeastern Indian Ocean off the west coast of Australia.
Parascyllium elongatum has a very thin elongated body, the height of the body does not exceed 18.5% of the body length, a short head, the length of which is less than 13% of the body length. The eyes are small, their length is less than 8% of the body length. The pectoral fins are small, the length of the front edge is 8% of the body length. Dorsal fins small, low, with narrowly rounded apices. The color is grayish, the body is covered with dark stripes, separated by diagonal vertical rows of white spots. A “necklace” is absent in the branchial region [1] .
Parascyllium elongatum breed by egg-born [1] .
These sharks are not subject to commercial fishing. There is insufficient data to evaluate the conservation status of the species by the International Union for Conservation of Nature [3] .
- ↑ 1 2 3 Last, PR and JD Stevens, 2008. Parascyllium elongatum sp. nov., a new collared carpetshark (Orectolobiformes: Parascylliidae) from Southwestern Australia. In Last, PR, White, WT & Pogonoski, JJ (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22.
- ↑ Parascyllium elongatum (neopr.) . Shark references. Date of treatment November 26, 2013.
- ↑ 1 2 Heard, M. & Huveneers, C. 2011. Parascyllium elongatum. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 26 November 2013.
