Scientific Name	Chaetodon nippon   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	Steindachner, 1883	Depth	1 - 30M
Chinese	日本蝴蝶魚	Poisonous Fish	No
Family_Chinese	蝴蝶魚科	Economic Fish	No
Family	F393　Chaetodontidae	Edible Fish	No	Chinese In Mainland China	日本蝴蝶魚
Max Length	17 cm	Aquarium Fish	Yes	Common Name	暗帶蝶
Distribution in World	Australia	Distribution in Taiwan	North
Habitats	Coral、Coastal	Holotype Locality	Tokyo, Japan
Synonyms	Chaetodon carens, Chaetodon decipiens
Reference	臺灣魚類誌(沈等, 1993)  Steindachner, F. etc. 1883 Suzuki, K. etc. 1980 沈世傑 編 Shih-Chieh Shen ed. 1993
Specimen List	ASIZP0060381. NTUM02704.
Common Name	Japanese butterflyfish
Redlist Status	Not in IUCN Redlist
Characteristic	Body oval, deep, strongly compressed. Head length about equal to head height; preopercle smooth, without prominent spines. Snout short. Small protractile mouth with brush-like teeth in the jaws. Dorsal fin with XII spines, no notch between spinous and soft dorsal fin; and 23 or 24 soft rays; anal fin with III spines and 18 to 20 soft rays; pectoral fins transparent with 16 soft rays; pelvic fins with I stout spine and 5 branched rays; caudal fin rounded to slightly emarginate. Body yellowish white, with brown region posteriorly; No vertical dark band above eye, but present in young. The dorsal, caudal, anal and pelvic fins yellow to light brown, the posterior portion of caudal fin transparent.
habitats	Inhabits rocky reefs at depths of 5 to 20 m. Feeds on crabs, worms, and other invertebrates; forms small to large aggregations. Spawning occurs in groups at sunset when water temperature is 23°C.
Distribution	Known only in the Western Pacific from Philippines north to Japan and Korea. It is found in northern Taiwanese waters.
Utility	Marine aquarium fish.