Scientific Name
Carcharhinus amblyrhynchos  
Carcharhinus amblyrhynchos鈍吻真鯊
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、
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 LR/nt 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.