Kingdom Animalia  
 Phylum Chordata  
 Class Chondrichthyes  
 Order Pristiophoriformes  
 Family Pristiophoridae  
 Genus Pristiophorus  
  Pristiophorus japonicus  Günther, 1870 
Provider: Kwang-Tsao Shao 
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Citation: Fishbase(2005);中國軟骨魚誌(朱元鼎,1960)
Character: 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. 
Habitat: 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. 
Name Code: 383139
  IUCN Red List:DD      Marine     
Suggested Link    The Fish Database of Taiwan  FishBase 
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