Scientific Name	Squalus japonicus   Pronounce			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.
Barcode	2008-03-25,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	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.
Utility