Scientific Name
Heniochus monoceros  
Heniochus monoceros烏面立旗鯛
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.  
Barcode2008-03-24,Kui-Ching Hsu,CO1,100%
Common Name Pennant coralfish; Unicorn pennant coralfish; Bannerfish; Masked bannerfish; Masked coachman 
Redlist Status NL 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.