Scientific Name
Hexanchus nakamurai  
Hexanchus nakamurai中村氏六鰓鯊
by: Lab of Fish Ecol. and Evo., BRCAS
Author Teng, 1962 Depth 0 - 600M
Chinese 中村氏六鰓鯊 Poisonous Fish No 
Family_Chinese 六鰓鯊科 Economic Fish Yes 
Family F032 Hexanchidae Edible Fish Yes  Chinese In Mainland China 長吻六鰓鯊 
Max Length 180 cm  Aquarium Fish No  Common Name 大眼六鰓鮫、六鰓沙 
Distribution in World global   Distribution in Taiwan North East 
Habitats Ocean、Deep Sea、Coastal  Holotype Locality Keelung, Taiwan, western Pacific 
Synonyms Hexanchus griseus, Hexanchus griseus nakamurai, Hexanchus vitulus, Notidanus griseus   
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  Teng, H-T. 1962 Springer, S. etc. 1969 Compagno, L.J.V. 1984 Compagno, L.J.V. 1984 沈世傑 編 Shih-Chieh Shen ed. 1993 Last, P.R. etc. 1994 朱元鼎, 孟慶聞 等編 2001 
Specimen List NMMBP06490.  
Common Name Bigeye sixgill shark 
Redlist Status NL Not in IUCN Redlist     
Characteristic A moderate-sized, slender-bodied, narrow-headed six gill shark. Head pointed. Eyes large. Lower jaw with 5 rows of large, comblike teeth on each side, these with relatively long cusps. Caudal peduncle long and slender, distance from dorsal insertion to upper caudal origin at least twice the length of dorsal fin base.
habitats A uncommon, deepwater shark species. Ovoviviparous, number of embryos 13. Maximum size is about 180 cm in TL, size at maturity estimated to be about 43 cm. Females mature at 142-178 cm, males at 123-157. 
Distribution Western North Atlantic including Bahamas, northern Cuba, Nicaragua and Cost Rica. Eastern Atlantic including Gibraltar, Ivory Coast and Nigeria. Indian Ocean including southern Africa, Aldabra Island, Madagascar and Kenya. Western Pacific including Taiwan 
Utility Usually taken by line gear and trawls. Stock size very limited and of relatively slight importance to fisheries.