Scientific Name
Squalus japonicus  
Squalus japonicus日本角鯊
by: Lab of Fish Ecol. and Evo., BRCAS
Author Ishikawa, 1908 Depth 150 - 300M
Chinese 日本角鯊 Poisonous Fish No 
Family_Chinese 角鯊科 Economic Fish Yes 
Family F034 Squalidae Edible Fish Yes  Chinese In Mainland China 日本角鯊 
Max Length 91 cm  Aquarium Fish No  Common Name 日本棘鮫、棘沙、刺鯊、沙魚 
Distribution in World Australia   Distribution in Taiwan North East 
Habitats Deep Sea、Benthos、Coastal  Holotype Locality Sagami Bay via Tokyo market; Kagoshima, Japan Syntypes: (3) whereabouts unknown 
Synonyms Squalus fernandinus, Squalus mitsukurii   
Reference 臺灣魚類誌(沈等, 1993);李柏峰(2003)碩士論文;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  Dr. H. V. Neal 1897 Chen, C. T. 1977 Chen, C., T. Taniuchi etc. 1979 Compagno, L.J.V. 1984 Compagno, L.J.V. 1984 沈世傑 編 Shih-Chieh Shen ed. 1993 Wilson, C.D. etc. 1994 朱元鼎, 孟慶聞 等編 2001 李柏鋒 2003 
Specimen List ASIZP0057939. ASIZP0061132. ASIZP0062473. ASIZP0064118. ASIZP0071043. ASIZP0800980. ASIZP0800981. ASIZP0800982. ASIZP0804437. ASIZP0910980. ASIZP0910981. ASIZP0910982. ASIZP0914437. FRIP01052. FRIP01065. FRIP20261. NTMP0667.  
Barcode2008-03-25,Kui-Ching Hsu,CO1,100% 2012-01-08,柯慧玲,CO1,100% 2012-01-08,柯慧玲,CO1,100%
Common Name Japanese spurdog 
Redlist Status DD IUCN Redlist: Data deficient(DD)     
Characteristic Body fairly slender. Snout angular, broad-based but narrow-tipped, and very long, preoral snout about 1.5 to 1.9 times mouth width, eyes closer to first gill slits than snout tip; nostrils closer to mouth than snout tip. Two dorsal fins with ungrooved, large spines, first dorsal fin height less than 2/3 of its length from origin to base. First dorsal spine moderately long, much less than fin base; second spine long, slightly lower than fin; first dorsal fin anteriorly situated, with fin origin over pectoral inner margins and spine origin over or slightly behind pectoral rear tips; second dorsal markedly smaller than first; pectoral fins broad and semifalcate; pelvic midbases about equidistant between first and second dorsal bases; caudal fin narrow-lobed and long, with long ventral lobe and strongly notched postventral margin. No anal fin. Precaudal pits strong. Lateral trunk denticles tricuspidate and with weakly scalloped posterior borders in adults. Colour: no white spots present on sides of body, dorsal fins with white edges, caudal without dark markings.
habitats Maximum total length 91 cm, females mature at 79 cm. A common but little known temperate and tropical dogfish of the outer continental and insular shelves and uppermost slopes at 150 to 300 m depth, presumably on or near bottom. 
Distribution Northeast off Taiwan; Western North Pacific: Southeastern Japan and East China Sea, including the Republic of Korea and the Philippines.