Scientific Name
Carcharhinus falciformis  
Carcharhinus falciformis鐮狀真鯊
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Müller & Henle, 1839) Depth 0 - 500M
Chinese 鐮狀真鯊 Poisonous Fish No 
Family_Chinese 真鯊科 Economic Fish Yes 
Family F029 Carcharhinidae Edible Fish Yes  Chinese In Mainland China 鐮狀真鯊 
Max Length 350 cm  Aquarium Fish No  Common Name 大沙、平滑白眼鮫、鯊條(澎湖)、圓頭鯊(澎湖)、黑鯊 
Distribution in World global   Distribution in Taiwan East、North、Greeb IS. 
Habitats Ocean、Deep Sea、Coral、Benthos、
Holotype Locality Cuba, Western Atlantic 
Synonyms Aprionodon sitankaiensis, Carcharhinus atrodorsus, Carcharhinus falciformes, Carcharhinus floridanus, Carcharhinus menisorrah, Carcharhinus menissorrah, Carcharias falciformis, Carcharias falcipinnis, Carcharias menisorrah, Carcharins menisorrah, Carcharius falcipinnis, Carcharius menisorrah, Eulamia malpeloensis ...all 17..  
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  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 ASIZP0806240. ASIZP0806241. ASIZP0806242. ASIZP0806430. ASIZP0916240. ASIZP0916241. ASIZP0916242. ASIZP0916430. BPBMI23203. BPBMI23204. NMMBP06412. NMMBP06416. NMMBP06445.  
Barcode2014-10-30,Kwang-Tsao Shao,CO1,100% 2014-10-30,Kwang-Tsao Shao,CO1,100%
Common Name Sickle silk shark; Ridgeback shark; Silk shark; Sickle shark; Reef shark; Sickle-shaped shark; Olive shark; Silky shark; Shark; Blackspot shark; Grey whaler shark 
Redlist Status LR/lc IUCN Redlist: Lower Risk/least concern(LR/lc)  2000-06-30   
Characteristic A large oceanic shark species, maximum size up to be about 3.3 m in TL. Snout moderately long and rounded; iternarial width 1.2-1.6 times in preoral snout length. Length of eye 1.2-2.7 % of TL; length of 3rd gill slit 2.9-3.6% of TL and less than 2/5 of 1st dorsal fin base; rows of anteroposterior teeth 14-16/13-17. A interdorsal ridge present. First dorsal fin falcate; origin of 1st dorsal fin behind the pectoral free rear tips; inner margin of 1st dorsal fin long, about 1/2 of dorsal base; 2nd dorsal fin very small and low, its height 1.3-2.2 % of TL, its inner margin very long and 1.6-3 times its height; origin of 2nd dorsal over or slightly behind anal origin; pectoral fin narrowly falcate, length of anterior margins about 14-22% of TL; vertebral centra 199-215, precaudal centra 98-106. Color dark grey or grey above, white below; tips of fins other than first dorsal dusky but not black-tipped; an inconspicuous white band on flank.
habitats Silky shark is an abundant offshore, oceanic and epipelagic tropical species, founded near the edge of continental and insular shelves, but also far from land in the open sea. In the open ocean it occurs from the surface down to at least 500 m depth. It i 
Distribution Oceanic and coastal, Circumtropical. Western, eastern and central Atlantic. Indian Ocean. Red Sea. Western, eastern and central Pacific. In Taiwan, this species can be found in northeastern and eastern waters. 
Utility This species is very commonly taken by pelagic longline fisheries. Its flesh is utilized fresh and dried salted for human consumption; its hide for leather; its fins for shark-fin soup; and its liver is extracted for oil, which has high vitamin A content.