Scientific Name
Hemigaleus microstoma  
Hemigaleus microstoma小口半沙條鯊
by: Lab of Fish Ecol. and Evo., BRCAS
Author Bleeker, 1852 Depth 12 - 170M
Chinese 小口半沙條鯊 Poisonous Fish No 
Family_Chinese 半沙條鯊科 Economic Fish Yes 
Family F028 Hemigaleidae Edible Fish Yes  Chinese In Mainland China 小口半沙條鯊 
Max Length 110 cm  Aquarium Fish No  Common Name 沙條、小口沙條鮫 
Distribution in World India Ocean to West Pacific Ocean   Distribution in Taiwan West 
Habitats Benthos、Coastal  Holotype Locality Jakarta [Batavia], Java, Indonesia 
Synonyms Chaenogaleus macrostoma, Hemigaleus machlani, Hemipristis elongatus, Negogaleus brachygnathus, Negogaleus microstoma   
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 
Specimen List
Common Name Sicklefin weasel shark; Weasel shark 
Redlist Status   2003-04-30   
Characteristic A small sized and slender shark species. Body elongate, compressed posteriorly; head depress, flattened below, broader than high, snout broadly rounded. Eyes with nictating eyelids. Gill slits short about 1.3 times horizontal eye length in adults. Mouth very short and arched with teeth not protruding. Upper teeth with distal cusplets but no serrations. Lower teeth shaped like inverted Ys, with short, straight, smooth-edged cusps, without cusplets. Second dorsal fin about 2/3 size of 1st dorsal fin. Second dorsal origin slightly ahead of anal origin. Anal fin smaller than 2nd dorsal fin and without preanal ridges. Tranversely, cresentic precaudal pits present. Colour light grey or bronze with no prominent markings.
habitats This is a small, relatively common inshore species of tropical continental areas. Viviparous species, with a yolk-sac placenta. Number of embryos 4-14 in Australian stock. Maximum size at least 91 cm. 
Distribution Indo-West Pacific including Southern India, Sri Lanka, Thailand, Singapore, Java, China, Taiwan, Philippines, and Australia. 
Utility This species were caught in gillnets, bottom trawlers, and probably on line gear. Flesh utilized for human consumption.