Scientific Name	Naso tonganus   Pronounce			by: ©Camrrubi, Jean-François
Author	(Valenciennes, 1835)	Depth	3 - 20M
Chinese	球吻鼻魚	Poisonous Fish	No
Family_Chinese	刺尾鯛科	Economic Fish	Yes
Family	F470　Acanthuridae	Edible Fish	Yes	Chinese In Mainland China	球吻鼻魚
Max Length	60 cm	Aquarium Fish	Yes	Common Name	剝皮仔、打鐵婆、鬼角(臺東)
Distribution in World	India Ocean to Pacific Ocean	Distribution in Taiwan	South、PonFu、LanI Is.、Greeb IS.
Habitats	Coral、Coastal	Holotype Locality	Tongatabou
Synonyms	Acanthurus tuberosus, Cyphomycter tuberosus, Naseus tonganus, Naso tuberosus
Reference	臺灣魚類誌(沈等, 1993)；Fishes of the Great Barrier Reef and Coral Sea(Randall et al.,1990)  Cuvier, G. etc. 1835 Randall, J. E., G. R. Allen etc. 1990 沈世傑 編 Shih-Chieh Shen ed. 1993
Specimen List	ASIZP0059236. ASIZP0067629. FRIP21471. FRIP21879. NMMBP02387. NMMBP08546.
Common Name	Humpnose unicornfish
Redlist Status	Not in IUCN Redlist
Characteristic	Dorsal-fin rays V, 26-29 ; anal-fin rays II, 26-28 ; pectoral-fin rays 16-18 ; pelvic-fin rays I,3. Adults with an obtusely rounded protuberance on front of head not extend anterior to mouth even on largest individuals; two candal peduncular plates, the keel on each large with a forward-projecting point; caudal fin deeply emarginate in juveniles to slightly emarginate in adults; head and dorsal part of body gray with scattered small plate blotches and numerous. Body gray, head and dorsal part scattered with small pale blotches and numberous small black spots, with a ventral extension of small black spots beneath outer part of pectoral fin; ventral half of body pale gray to white, a large blackish spot below and in front of pectoral fin base.
habitats	A coral-reef species found in coastal to outer reef, usually at moderate depth in reef channels subject to strong currents, or around rocky outcrops along shores. Feed mainly on leafy or fleshy algae, but also on zooplankton when abundant. Occur as solita
Distribution	Western Indian Ocean: Mauritius, Seychelles, and Mozambique. Probably more wide-ranging. Taiwan: Lanyu, Lyudao.
Utility	Commercial fishery and aquarium species.