Scientific Name
Hypogaleus hyugaensis  
Hypogaleus hyugaensis下盔鯊
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Miyosi, 1939) Depth 40 - 230M
Chinese 下盔鯊 Poisonous Fish No 
Family_Chinese 皺唇鯊科 Economic Fish Yes 
Family F027 Triakidae Edible Fish Yes  Chinese In Mainland China 下盔鯊(黑鰭翅鯊) 
Max Length 127 cm  Aquarium Fish No  Common Name 翅沙、黑緣灰鮫 
Distribution in World India Ocean to West Pacific Ocean   Distribution in Taiwan North East 
Habitats Benthos、Coastal  Holotype Locality Off Hyuga Nada, east coast of Miyazaki Prefecture, Japan, depth 40-60 meters 
Synonyms Eugaleus hyugaensis, Galeorhinus hyugaensis, Galeorhinus zanzibarensis, Hypogaleus zanzibarensis   
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 FRIP01272. NTUM07729.  
Common Name Pencil shark; Western school shark; Blacktip tope shark; Blacktip tope; Blacktip houndshark; Blacktip topeshark; Lesser soupfin shark 
Redlist Status LR/nt IUCN Redlist: Lower Risk/near threatened(LR/nt)  2000-06-30   
Characteristic Body slender, with long-nose and vestigial anterior nasal flaps. Eyes large, horizontally, with internal nictitating lower eyelids. Teeth bladelike with oblique cusps and distal cusplets in both jaw. Second dorsal fin somewhat smaller than 1st dorsal fin but larger than anal fin. A relatively short terminal caudal lobe much less than half the dorsal caudal margin.
habitats A little-known, tropical and subtropical shark of the continental shelves found at 40-230 depth near the bottom. Viviparous species, with a yolk-sac placenta; number of young 10-11 per litter. Gestation period estimated to be about 15 month with birth per 
Distribution Distributed in coastal and inshore of western Indian Ocean and western north Pacific Ocean. 
Utility A minor fisheries catch off Japan and Taiwan, taken in gillnets, line gear, and bottom trawlers, and utilized for human consumption.