Scientific Name	Heterodontus japonicus   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	Maclay & Macleay, 1884	Depth	5 - 37M
Chinese	日本異齒鯊	Poisonous Fish	No
Family_Chinese	異齒鯊科	Economic Fish	No
Family	F008　Heterodontidae	Edible Fish	No	Chinese In Mainland China	寬紋虎鯊
Max Length	120 cm	Aquarium Fish	Yes	Common Name	日本異齒鮫、角鯊、虎沙
Distribution in World	North West Pacific Ocean	Distribution in Taiwan	North
Habitats	Coral、Coastal	Holotype Locality	Tokyo, Japan
Synonyms	Cestracion japonicus, Cestracion philippi japonicus
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  Clark, E. etc. 1976 Compagno, L.J.V. 1984 Compagno, L.J.V. 1984 Ida, H. etc. 1986 沈世傑 編 Shih-Chieh Shen ed. 1993 朱元鼎, 孟慶聞 等編 2001
Specimen List
Common Name	Port Jackson shark; Bull-head shark; Japanease bullhead shark; Japanese bullhead shark
Redlist Status	Not in IUCN Redlist
Characteristic	Supraorbital ridges moderately high, robust, extended about 1.3-1.5 eye diameter beyond eyes. Molariform teeth in rear of mouth greatly expanded and rounded, without medial ridges. First dorsal origin over pectoral bases. Anal base nearly or quite 2 times in space between anal base and lower caudal origin. Colour light brown with broad, dark brown saddle-marks.
habitats	A sluggish, slow-swimming shark species, easily caught by divers. Oviparous, each female usually lays two eggs at a time. Eggs hatch in about a year. Maximum total length about 120 cm, males adult at 69 cm. Size at hatching about 18 cm.
Distribution	Western North Pacific including Japan, Korea, northern China and Taiwan.
Utility	Stock size probably limited. Caught and eaten in Japan.