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Cephaloscyllium silasi (Talwar, 1974)

Indian swellshark
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Native range | All suitable habitat | Point map | Year 2050
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Cephaloscyllium silasi   AquaMaps   Data sources: GBIF OBIS
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Image of Cephaloscyllium silasi (Indian swellshark)
Cephaloscyllium silasi
Picture by Siripittrakul, B. & T. Krajangdara


India country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Arabian Sea, off Kollam (Kerala), south-west coast of India (Ref.95495) Also Ref. 244.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/in.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kapoor, D., R. Dayal and A.G. Ponniah, 2002
National Database:

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks) > Scyliorhininae
Etymology: Cephaloscyllium: cephalus, from kephale (Gr.), head, referring to its very broad and depressed head; skylion, Greek for dogfish or small shark. (See ETYFish);  silasi: In honor of Eric Godwin Silas (1928-2018), Sri Lankan-born Indian ichthyologist and fisheries scientist, Director, Central Marine Fisheries Institute (India), “whose excellent publications on the ichthyofauna of the continental shelf of the south-west coast of India have added much to our knowledge of the fauna of this region”. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋 深海底的; 深度上下限 250 - 500 m (Ref. 95495).    ; 16°N - 9°N

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Western Indian Ocean: vicinity of Quilon, India (Ref. 244) and Sauqira Bay, Oman (Ref. 10914).

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - 36.7 cm
Max length : 36.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 95495); 45.0 cm TL (female)

简单描述 检索表 | 型态特徵 | 形态测量图

This is a small shark with the following characters: stout body with expanded belly; labial furrows absent but a vestigial lower labial furrow may be present; anterior nasal flaps are broadly triangular; head depressed, flattened and broad, rounded in dorsal and ventrally; mouth large and arched; 5 gill slits, dorsolaterally placed and last two gill slits over pectorals, the 1-3 gill slits are subequal in length, 5th smallest; eyes dorsolateral and slit like; large mouth, arched or crescentic; mouth width 0.6 times HL; first dorsal origin slightly in front of pelvic insertion and placed above pelvics (Ref. 95495).

生物学特性     字汇 (例如 epibenthic)

Found on the uppermost continental slope. Probably a dwarf species. Oviparous (Ref. 50499). This species could possibly attains a maximum size of 50.0 cm TL, with males reported (Ref. 26842) to reach length at maturity at 36.7 cm TL. A 45.0 cm female was found gravid and have two egg cases, one in each uterus, containing visible embryos (85.1-86.2 mm) with attached yolk sac. Stomach examined contains crustaceans and cephalopods (Ref. 95495).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

世界自然保护联盟红皮书 (Ref. 130435)

  极度濒危 (CR) (A2d); Date assessed: 19 November 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 




人类利用

渔业: 没有兴趣
FAO(Publication : search) | FishSource |

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网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes(, ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00139 - 0.00497), b=3.21 (3.04 - 3.38), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.0   ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (35 of 100).