Scientific Name
Heterodontus japonicus  
Heterodontus japonicus日本異齒鯊
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 NL 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.