Scientific Name	Carcharhinus altimus   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	(Springer, 1950)	Depth	25 - 500M
Chinese	大鼻真鯊	Poisonous Fish	No
Family_Chinese	真鯊科	Economic Fish	Yes
Family	F029　Carcharhinidae	Edible Fish	Yes	Chinese In Mainland China	大鼻真鯊
Max Length	300 cm	Aquarium Fish	No	Common Name	大沙、大鼻白眼鮫、高翅真鯊
Distribution in World	global	Distribution in Taiwan	North East
Habitats	Ocean、Deep Sea、Coral、Benthos、 Coastal	Holotype Locality	Off Cosgrove Reef, Key West, Florida, U.S.A., depth 95 fathoms
Synonyms	Carcharhinus albimarginatus, Carcharhinus galapagensis, Carcharhinus obscurus, Carcharhinus radamae, Carcharinus altimus, Carcharinus radamae, Eulamia altima
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  Springer, S. 1950 Schwartz, F.J. 1983 Compagno, L.J.V. 1984 Compagno, L.J.V. 1984 沈世傑 編 Shih-Chieh Shen ed. 1993 Anderson, R.C. etc. 1996 朱元鼎, 孟慶聞 等編 2001
Specimen List	ASIZP0806190. ASIZP0806191. ASIZP0806192. ASIZP0916190. ASIZP0916191. ASIZP0916192. NMMBP04707.
Barcode	2014-10-30,Kwang-Tsao Shao,CO1,100% 2014-10-30,Kwang-Tsao Shao,CO1,100% 2014-10-30,Kwang-Tsao Shao,CO1,100%
Common Name	Bignose shark; Knopp's shark
Redlist Status	Not in IUCN Redlist
Characteristic	A large, fairly slender species. Snout moderately long and bluntly pointed to rounded. Eyes large, its length 1.4-2.3% of total length. Anterior nasal flaps rather high, and triangular. Gill slits moderately long, the 3rd 3.1-3.9% of total length and about a third of 1st dorsal fin base. Anteroposterior teeth in each jaw half 14-16/14-15. Upper teeth with broad, strongly serrated, very high cusps that merge into the crown feet. Lower teeth with erect, narrow serrated cusps and tranverse roots. Interdorsal ridge present. Origin of 1st dorsal fin over pectoral insertion to about over midlength of pectoral inner matgins. Second dorsal fin large and high, its height 2.8-3.4% of total length. Origin of 2nd dorsal slightly anterior to anal origin. Total number of vertebral centra 194-206, precaudal centra 101-110. colour light grey above, white below, with dusky fin tips.
habitats	A common off-shore bottom-dwelling warm-temperate and tropical shark usually found in depth of 90 m and down to at least 250-430 m. viviparous, number of embryos 3-15 per litter. Maximum size about 300 cm, size of sexual maturity were estimated to be 216
Distribution	Western Atlantic including Florida, Bahamas, Cuba, Nicaragua, Cost Rica, Venezuela. Eastern North Atlantic including Senegal, Gambia, Sierra Leone, Ivory Coast and Ghana. Mediterranean Sea. Western Indian Ocean including South Africa, Madagascar, India, R
Utility	This species were taken in the Caribbean region on deep-set longlines, and utilized for fishmeal, oil and shagreen; also taken in bottom trawlers in the western Indian Ocean.