Scientific Name	Carcharhinus amblyrhynchos   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	(Bleeker, 1856)	Depth	0 - 280M
Chinese	鈍吻真鯊	Poisonous Fish	No
Family_Chinese	真鯊科	Economic Fish	Yes
Family	F029　Carcharhinidae	Edible Fish	Yes	Chinese In Mainland China	鈍吻真鯊
Max Length	255 cm	Aquarium Fish	No	Common Name	黑印真鯊、大沙、黑印白眼鮫、黑尾真鯊、灰礁鯊
Distribution in World	India Ocean to Pacific Ocean	Distribution in Taiwan	West
Habitats	Ocean、Deep Sea、Coral、Coastal、 Lagoon、Coral&Sand	Holotype Locality	Java Sea near Solombo Island [Indonesia, eastern Indian Ocean]
Synonyms	Carcharhinus amblyrhinchos, Carcharhinus amblyrhynchus, Carcharhinus melanopterus, Carcharhinus menisorrah, Carcharhinus spallanzani, Carcharhinus wheeleri, Carcharias amblyrhynchos, Carcharias nesiotes, Carcharinus amblyrhynchos, Eulamia melanoptera, Galeolamna coongoola, Galeolamna fowleri, Galeolamna tufiensis ...all 13..
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  Bleeker, P. 1856 Randall, J. E. etc. 1973 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	NMMBP06436. NTMP1366.
Common Name	Shortnose blacktail shark; Shark; Whaler shark; Blacktail reef shark; Black-vee whaler; Bronze whaler; Grey whaler shark; Longnose blacktail shark; Grey reef shark; Grey shark; Gray reef shark
Redlist Status	IUCN Redlist: Lower Risk/near threatened(LR/nt)  2000-06-30
Characteristic	A medium-sized fairly stocky species. Eyes fairly large its horizontal length 2-2.7% of total length. Gill slits moderate sized, the third 2.8-4.2% of total length and less than 2/5 of first dorsal fin base. Rows of anteroposteral teeth in each jaw half 13-14/13-14. Upper teeth with narrow, strongly serrated, high cusps, and crown feet with coarser serrations and often distal cusplets. Lower teeth with erect or semioblique, narrow serrated cusps and transverse roots. Interdorsal ridge absent usually. Origin of 1st dorsal fin over or just in front of pectoral free rear tips. Inner margin of 1st dorsal moderately long, but less than a half dorsal base. Second dorsal fin moderately large and high, its height 2.7-3.4% of total length, its inner margin length 1.2-1.6 times its height. Origin of 2nd dorsal about over anal origin. Length of anterior margins of pectoral fin about 18-21% of total length. Total verebral centra 211-221, precaudal centra 110-119. Colour grey above, white below, pectorals, 2nd dorsal, anal, and pelvic fins with blackish of dusky tips.
habitats	A coastal-pelagic and inshore species. This is an active, strong-swimming species, that forms daytimes schools or aggregations in favoured areas such as reef passes, lagoons, or palces near passes. Viviparous, with a yolk-placenta, number of young 1-16 pe
Distribution	Indian Ocean including Madagascar, Mauritius, Seychelles, India. Western central Pacific including Singapore, Thailand, Viet Nam, China, Taiwan, The Philippines, Indonesia, New Guinea, Australia, Hawaiian Islands.
Utility	This species sometimes fished in northeastern Taiwan waters by longline fishery. Flesh utilized fresh for human consumption.