Scientific Name
Naso hexacanthus  
Naso hexacanthus六棘鼻魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Bleeker, 1855) Depth 6 - 150M
Chinese 六棘鼻魚 Poisonous Fish No 
Family_Chinese 刺尾鯛科 Economic Fish Yes 
Family F470 Acanthuridae Edible Fish Yes  Chinese In Mainland China 六棘鼻魚 
Max Length 75 cm  Aquarium Fish Yes  Common Name 剝皮仔、打鐵婆、鬼角(臺東)、老娘(澎湖)、粗皮狄(澎湖) 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan East、West、South、PonFu、ShaoLiuChew、LanI Is.、Greeb IS.、Tung Sa IS. 
Habitats Coral、Coastal、Lagoon、Coral&Sand  Holotype Locality Amboina 
Synonyms Naseus vomer, Naso hexacantus, Naso thorpei, Naso vomer, Priodon hexacanthus   
Reference 臺灣魚類誌(沈等, 1993);Fishes of the Great Barrier Reef and Coral Sea(Randall et al.,1990)  P. Bleeker 1855 Randall, J. E., G. R. Allen etc. 1990 沈世傑 編 Shih-Chieh Shen ed. 1993 
Specimen List ASIZP0059467. ASIZP0059652. ASIZP0060985. ASIZP0063491. ASIZP0065168. ASIZP0070749. ASIZP0800946. ASIZP0806728. ASIZP0806736. ASIZP0806737. ASIZP0806738. ASIZP0900041. ASIZP0910946. ASIZP0916728. ASIZP0916736. ASIZP0916737. ASIZP0916738. FRIP20131. FRIP21227. FRIP22296. FRIP22406. FRIP22407. NMMBP03351. NMMSTP00193. NTUM01187. NTUM01189.  
Barcode2008-03-24,Kui-Ching Hsu,CO1,100%
Common Name Sleek unicornfish; Blacktongue unicorn; Blacktongue unicornfish; Blacktounge unicornfish; Black unicornfish 
Redlist Status NL Not in IUCN Redlist     
Characteristic Dorsal-fin rays VI, 26-29 ; anal-fin rays II, 27-30 ; pectoral-fin rays 17-18 ; pelvic-fin rays I,3. Body grayish to greenish brown, paler below. Two weak immovable bucklers on each side of caudal peduncle. Without horn; short groove in front of eye. Yellowish brown preopercular margin. Teeth small and slender, close-set and pointed. Caudal fin emarginate in young.
habitats Usually seen in large schools on coastal to outer reef at various depths in pursuit of zooplankton such as crab larvae, arrow worms, pelagic tunicates, and occasionally filamentous red algae. The species is never poisonous. 
Distribution Indo-Pacific: Red Sea and East Africa to the Hawaiian, Marquesas and Ducie islands; north to southern Japan, south to Lord Howe Island Throughout Micronesia. Mascarene, Society and Austral Islands. Taiwan: South, Hsiaoliuchiu, Lanyu, Lyudao, East, West.  
Utility Commercial fishery and aquarium species.