Cephaloscyllium sarawakensis (lat.) - one of the species of the genus of big-headed sharks , the family of cat sharks (Scyliorhinidae). This is a little-studied species, known for several specimens caught in the network on the edge of the continental shelf of Sarawak , Malaysia , and underwater photographs taken off the coast of Hainan Island ( China ).
| Cephaloscyllium sarawakensis |
| Scientific classification |
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| No rank : | Bilateral symmetrical |
| View: | Cephaloscyllium sarawakensis |
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| International scientific name |
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Cephaloscyllium sarawakensis Yano , A. Ahmad & Gambang , 2005 |
| Synonyms |
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Cephaloscyllium circulopullum Yano, Ahmad, Gambang, Idris, Solahuddin & Aznan, 2005
Cephaloscyllium parvum Inoue & Nakaya, 2006 |
| Security status |
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Not enough data IUCN Data Deficient : 161380 |
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Content
Cephaloscyllium sarawakensis lives in the northwestern, western and central parts of the Pacific Ocean, on the edge of the continental shelf of Sarawak (Malaysia) and off the coast of Hainan Island (PRC) at a depth of 116-165 m [1] .
This is a small bottom fish. The maximum size is 40.8 cm [2] . She has a rather slender body with a short head. The short and rounded face is slightly flattened. Furrows in the corners of the mouth are absent. The teeth are small. The first dorsal fin is opposite the ventral fins. The distance from the tip of the muzzle to the dorsal fin is 44β48%, and to the base of the pectoral fins - 20% of the body length. The width of the head is 42-50% of the length of the head. The first dorsal fin is larger than the second. The pectoral fins are quite large and wide. The nostrils are framed by skin folds that do not reach the mouth. The color is brown. On the back there are several saddle-shaped dark spots [1] .
Males reach puberty with a length of 32.5β37.2, and females with a length of 35.4β40.8. This species reproduces by laying eggs [2] . Like other big-headed sharks, Australian big-headed sharks are able to inflate with water or air, being pulled out of the water, and swell in case of danger; in this way they wedge in the cracks, not allowing themselves to be caught, and even scare away the predator [1] .
Occasionally, by-catch is caught in deep-sea nets. To assess the state of conservation of the data type is not enough [2] .
- β 1 2 3 Yano, K., A. Ahmed, AC Gambang, AH Idris, AR and Z. Aznan 2005 Sharks and rays of Malaysia and Brunei, Darussalam. SEAFDEC-MFRDMD / SP / 12. Kuala Terengganu. Sharks and Rays Malaysia and Brunei: 557 pp.
- β 1 2 3 Ebert, DA, Ali, A., Pek Khiok, AL & Valenti, SV 2009. Cephaloscyllium sarawakensis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 28 May 2012.
