Scientific Name
Pristiophorus japonicus  
Pristiophorus japonicus日本鋸鯊
by: Lab of Fish Ecol. and Evo., BRCAS
Author Günther, 1870 Depth 0 - 500M
Chinese 日本鋸鯊 Poisonous Fish No 
Family_Chinese 鋸鯊科 Economic Fish No 
Family F041 Pristiophoridae Edible Fish No  Chinese In Mainland China 日本鋸鯊 
Max Length 163 cm  Aquarium Fish No  Common Name 日本鋸鮫、劍沙 
Distribution in World North West Pacific Ocean   Distribution in Taiwan Tung Sa IS. 
Habitats Deep Sea  Holotype Locality Japan 
Reference Fishbase(2005);中國軟骨魚誌(朱元鼎,1960)  
Specimen List ASIZP0057267.  
Common Name Halberd shark; Japanese saw shark; Japanese sawshark 
Redlist Status NL Not in IUCN Redlist     
Characteristic Trunk somewhat depressed but not greatly flattened and raylike. Rostrum extremely long, narrow, and narrowly tapering. Length of preoral snout 26-29% of total length. Bases of rostral barbels about 1.1-1.2 times closer to mouth than rostral tip. Distance from rostral barbels to nostrils about equal to distance from nostrils to 1st to 4th gill slits. Number of rostral teeth on each side of rostrum in front of barbells are about 15-26, and 9-17 behind them. Distance from mouth to nostrils 1.1-1.2 times the length of internarial space. Rows of upper jaw teeth 34-58. Dorsal and pectoral fin cover with dermal denticles in large individuals. First dorsal origin behind free rear tips of pectorals.
habitats A common sawshark founded in the western North Pacific continental shelves and upper slopes. Ovoviviparous, litter size is about 12. Size of maximum is about 136 cm TL for females. 
Distribution Western North Pacific including Japan, the Koreas, northern China, Taiwan and the Philippines. 
Utility Caught with bottom trawls or bottom gill net. Utilized as fresh for human consumption. In Japan, its flesh is considered of high quality and used to prepare “kameboko” for human consumption.