Kingdom Animalia  
 Phylum Chordata  
 Class Actinopterygii  
 Order Perciformes  
 Family Acanthuridae  
 Genus Naso  
  Naso hexacanthus  (Bleeker, 1855) 
Provider: Chen, Jeng-Ping 
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Synonyms:Naseus vomerNaso thorpeiPriodon hexacanthus  details
Citation: 臺灣魚類誌(沈等, 1993);Fishes of the Great Barrier Reef and Coral Sea(Randall et al.,1990)
Character: 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. 
Habitat: 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. 
Name Code: 381282
  IUCN Red List:LC      Marine     
Suggested Link    The Fish Database of Taiwan  FishBase  Discover Life  World Register of Marine Species (WoRMS) 
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