Scientific Name
Naso annulatus  
Naso annulatus環紋鼻魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Quoy & Gaimard, 1825) Depth 1 - 60M
Chinese 環紋鼻魚 Poisonous Fish No 
Family_Chinese 刺尾鯛科 Economic Fish No 
Family F470 Acanthuridae Edible Fish Yes  Chinese In Mainland China 突角鼻魚 
Max Length 100 cm  Aquarium Fish Yes  Common Name 剝皮仔 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan East、South、North East、PonFu、ShaoLiuChew、LanI Is.、Greeb IS.、Tung Sa IS. 
Habitats Coral、Coastal、Lagoon、Coral&Sand  Holotype Locality Timor 
Synonyms Naso annularis, Naso herrei, Priodon annulatus   
Reference 臺灣魚類誌(沈等, 1993);Fishes of the Great Barrier Reef and Coral Sea(Randall et al.,1990)  Randall, J. E., G. R. Allen etc. 1990 沈世傑 編 Shih-Chieh Shen ed. 1993 
Specimen List ASIZP0054628. ASIZP0059066. ASIZP0062129. ASIZP0806740. ASIZP0900490. ASIZP0916740. BPBMI23211. FRIP20335. NMMBP04988. NTUM00135. NTUM01186.  
Barcode2015-10-23,Chia-Hao Chang,CO1,%
Common Name Nosefish; Ringtailed unicornfish; Whitemargin unicornfish; Unicornfish; Whitemargin unicorn; White margin unicornfish; Whitemargin; Banded unicornfish; Long-horn unicorn fish 
Redlist Status NL Not in IUCN Redlist     
Characteristic Dorsal-fin rays V, 28-29 ; anal-fin rays II, 27-28 ; pectoral-fin rays 17-19 ; pelvic-fin rays I,3. Body plain brown or olivaceous, paler below; subadults with black caudal rays, narrow margins and white caudal filaments; pectoral fins with white distal margins.
habitats Occurs in shallow clear coastal to outer reef slopes, but large adults steep drop-offs in more than 25m, usually in small groups, but occasionally in large schools. Feed on large zooplankton and benthic algae during the day, and shelter within the reef du 
Distribution Indo-Pacific: East Africa to the Hawaiian, Marquesan, and Tuamotu islands, north to southern Japan, south to Lord Howe Island; throughout Micronesia. Mascarene, Line and Society Islands. Taiwan: South, Hsiaoliuchiu, Penghu, Lanyu, Lyudao, East, North-East 
Utility Commercial aquarium species.