Scientific Name	Hexanchus nakamurai   Pronounce			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	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.