Scientific Name
Chaenogaleus macrostoma  
Chaenogaleus macrostoma大口尖齒鯊
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Author (Bleeker, 1852) Depth 10 - 59M
Chinese 大口尖齒鯊 Poisonous Fish No 
Family_Chinese 半沙條鯊科 Economic Fish Yes 
Family F028 Hemigaleidae Edible Fish Yes  Chinese In Mainland China 大口尖齒鯊 
Max Length 100 cm  Aquarium Fish No  Common Name 沙條 
Distribution in World India Ocean to West Pacific Ocean   Distribution in Taiwan West 
Habitats Benthos、Coastal  Holotype Locality Jakarta [Batavia] and Samarang [Semarang], Java, Indonesia 
Synonyms Hemigaleus balfouri, Hemigaleus macrostoma, Hemigaleus microstoma, Hemipristis elongatus, Negogaleus balfouri, Negogaleus macrostoma   
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  Baranes, A. etc. 1979 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
Common Name Balfour's shark; Hooktooth shark 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body small and slender. Snout wedge-shaped in dorsoventral view. Eyes large with nictitating eyelids. Gill slits very long, about twice eye length or more. Lower teeth with long, hooked smooth-edge cusps. Lower teeth protrude prominently when mouth is closed. Tooth row counts 33-38/34-36. 2nd dorsal fin about 2/3 the size of first. Second dorsal origin opposite or slightly ahead of anal origin. Anal fin smaller than 2nd dorsal fin and without preanal lateral ridges. Transverse, cresentic pre-caudal pits present, and light grey or bronze colour with no prominent markings.
habitats A common coastal and inshore tropical shark of the continental and insular shelves, usually caught at depths down to 59 m. viviparous species, with a yolk-sac placenta, number of embryos 4 per litter. Size of maximum length about 100 cm, size at birth at  
Distribution Indo-West Pacific including Pakistan, India, SriLanka, Singapore, Thailand, Viet Nam, China, Taiwan, Java and Sulawesi. 
Utility Commonly caught in inshore and offshore areas by longline and bottom trawler fisheries. Flesh utilized fresh for human consumption.