Scientific Name	Heniochus monoceros   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	Cuvier, 1831	Depth	1 - 20M
Chinese	烏面立旗鯛	Poisonous Fish	No
Family_Chinese	蝴蝶魚科	Economic Fish	No
Family	F393　Chaetodontidae	Edible Fish	No	Chinese In Mainland China	單角馬夫魚
Max Length	24 cm	Aquarium Fish	Yes	Common Name	黑面關刀、關刀(臺東)
Distribution in World	India Ocean to Pacific Ocean	Distribution in Taiwan	East、South、North、PonFu、LanI Is.、Greeb IS.、Tung Sa IS.、Nan Sa IS.
Habitats	Coral、Coastal、Lagoon	Holotype Locality	Mauritius
Synonyms	Heniochus monoceras, Heniochus permutatus, Taurichthys monoceros
Reference	臺灣魚類誌(沈等, 1993)  Cuvier, G. etc. 1831 沈世傑 編 Shih-Chieh Shen ed. 1993
Specimen List	ASIZP0066623. ASIZP0801415. ASIZP0805861. ASIZP0911415. ASIZP0915861. FRIP21232. FRIP22255. NTUM00257. NTUM00258. NTUM00259. NTUM00261. NTUM00262. NTUM00264. NTUM00265. NTUM00673.
Barcode	2008-03-24,Kui-Ching Hsu,CO1,100%
Common Name	Pennant coralfish; Unicorn pennant coralfish; Bannerfish; Masked bannerfish; Masked coachman
Redlist Status	Not in IUCN Redlist
Characteristic	Body oval, deep, strongly compressed. Head length about equal to head height; a pair of bony knobs is on the forehead; preopercle smooth, without prominent spines. Snout short. Small protractile mouth with brush-like teeth in the jaws. Dorsal fin with XII spines, fouth dorsal spine prolonged as a tapering white filament; and 24 to 27 soft rays; anal fin with III spines and 18 to 19 soft rays; pectoral fins transparent with 16 to 17 soft rays; pelvic fins with I stout spine and 5 branched rays; caudal fin rounded to slightly emarginate. Body white with three broad black bandds, the first from nape encompassing most of front part of head, the second across front of body and continuous with black pelvic fins, and the oblique third from middle of back to rear of anal fin; dorsal and caudal fins yellow.
habitats	Occurs in lagoon and seaward reefs with rich coral growth at depths of 3 to 20 m. Juveniles solitary; adults are often paired and occasionally found hovering side by side under tabular corals. Feeds on bottom living animals.
Distribution	Widely distributed in Indo-Pacific from East Africa to the Tuamoto Islands, north to southern Japan, south to New South Wales and Tonga. Widely around coral reefs in Taiwan.
Utility	Marine aquarium fish.