Scientific Name	Notorynchus cepedianus   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	(Péron, 1807)	Depth	0 - 570M
Chinese	油夷鯊	Poisonous Fish	No
Family_Chinese	六鰓鯊科	Economic Fish	Yes
Family	F032　Hexanchidae	Edible Fish	Yes	Chinese In Mainland China	扁頭哈那鯊
Max Length	300 cm	Aquarium Fish	No	Common Name	油夷鮫、七鰓沙
Distribution in World	global	Distribution in Taiwan	North
Habitats	Ocean、Deep Sea、Coastal	Holotype Locality	Adventure Bay, Tasmania, Australia
Synonyms	Heptanchus indicus, Heptanchus pectorosus, Heptrachias pectorosus, Heptranchias cepedianus, Heptranchias haswelli, Heptranchias pectorosus, Heptranchias spilotus, Notidanus ferox, Notidanus indicus, Notidanus medinae, Notidanus wolniczkyi, Notorhynchus borealis, Notorhynchus cepedianus ...all 24..
Reference	臺灣魚類誌(沈等, 1993)；中國動物誌-圓口綱及軟骨魚綱(朱等, 2001)；FAO Species Catalogue, Vol.4 Sharks of the world  Compagno, L.J.V. 1984 Compagno, L.J.V. 1984 沈世傑 編 Shih-Chieh Shen ed. 1993 朱元鼎, 孟慶聞 等編 2001
Specimen List	FRIP01274.
Common Name	Seven-gilled shark; Sevengill shark; Seven-gill cowshark; Pacific seven-gill shark; Spotted cow shark; Tasmanian tiger shark; Spotted seven-gilled shark; Broad snouted sevengill; Bluntnose sevengill shark; Cowshark; Broad-snout; Broadnose sevengill shark;
Redlist Status	IUCN Redlist: Data deficient(DD)  2000-06-30
Characteristic	A large-sized, broad-headed, small-eyed seven-gilled shark. Head bluntly pointed, with 7 pairs of gill slits on both sides of head. Eyes small. Mouth wide. Jaws with large lower comblike teeth, which is high and short, with mesial serrations, a low cusp, and 5 or 6 distal cusplets in adults. Caudal peduncle short, distance from dorsal fin insertion to upper caudal origin about equal to the length of dorsal fin base. Body usually possess numerous small black spots.
habitats	A benthic, neritic species. Live on the continental shelves. Ovoviviparous, litter size large, up to 82 young. Maximum size about 290 cm un TL. Size at birth estimated to be about 45-53 cm. Males maturing at 150-180 cm and females at 192-208 cm.
Distribution	Western South Atlantic from southern Brazil to northern Argentina. Eastern South Atlantic and Western Indian Ocean from Namibia, southern Africa to India. Western Pacific from southern Japan to the Koreas, China, Taiwan, Australia, and New Zealand. Easter
Utility	A rare species in Taiwan area, sometimes taken by bottom longline or bottom trawls. Flesh utilized as fresh for human consumption.