Scientific Name	Naso thynnoides   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	(Cuvier, 1829)	Depth	2 - 40M
Chinese	擬鮪鼻魚	Poisonous Fish	No
Family_Chinese	刺尾鯛科	Economic Fish	Yes
Family	F470　Acanthuridae	Edible Fish	Yes	Chinese In Mainland China	單板鼻魚
Max Length	40 cm	Aquarium Fish	Yes	Common Name	剝皮仔、打鐵婆、鬼角(臺東)
Distribution in World	India Ocean to West Pacific Ocean	Distribution in Taiwan	South、ShaoLiuChew、LanI Is.、Greeb IS.
Habitats	Coral、Coastal、Lagoon、Coral&Sand	Holotype Locality	New Guinea
Synonyms	Axinurus thynnoides, Naso thynoides
Reference	臺灣魚類誌(沈等, 1993)；Fishes of Japan(Nakabo, 2002)  沈世傑 編 Shih-Chieh Shen ed. 1993 Nakabo T. 2002 Nakabo T. 2002
Specimen List	ASIZP0057400. ASIZP0059396. ASIZP0806724. ASIZP0916724. FRIP22297. FRIP22414. NMMBP02373. NMMBP08741. NMMSTP00194.
Barcode	2015-10-23,Chia-Hao Chang,CO1,%
Common Name	Oneknife unicorn; Oneknife unicornfish; Singlespine unicornfish; Thunny unicornfish; Barred unicornfish
Redlist Status	Not in IUCN Redlist
Characteristic	Dorsal-fin rays IV-V, 28-30 ; anal-fin rays II, 28-30 ; pectoral-fin rays16-18 ; pelvic-fin rays I,3.Body elongate-ovate. Dorsal and anal profiles nearly even. Forehead without rostral prominence when in adults. Candal peduncular plate single, with a semicircular, retrorsely curved keel. Body gray, paler ventrally, with about 30 narrow dark bluish gray bars on body and irregular spots on head; a borad diffuse yellow stripe on side of body; candal peduncular plate and keel dusky; caudal fin bluish gray.
habitats	Usually seen in small roving aggregations feeding on zooplankton and algae. Occur both in the protected waters of lagoons and in exposed outer reef areas from the shallows to at least 40m. Sleep on reefs at night at which time they take on a disruptive mo
Distribution	Indo-West Pacific: East Africa to Papua New Guinea, north to southern Japan. Taiwan: South, Hsiaoliuchiu, Lanyu, Lyudao.
Utility	Commercial fishery and aquarium species.