Shorefishes of the Tropical Eastern Pacific Online Information System
Updated: 06/12/2008  
Version: 1.0.4.53  

Contributors | Glossary | Settings  
  
Home General
Information
What Fish is That?The FishesLibraryRandom ImagesGlossaryResearch Engine


Species Information          
Book mode off
  Book mode off  
    Acanthurus  
Perciformes  -  Acanthuridae  -  Acanthurus  -  Acanthurus nigricans

Acanthurus nigricans

All Families(148) All Genera(504) All Species(1287)
blue-black

white blotch under eye
 
D & A - black & yellow
 
C  white
 

     

 Images
 
     


Acanthurus nigricans (Linnaeus, 1758)


Whitecheek surgeonfish,     Goldrimmed surgeonfish


Body an elongate oval; head profile steep; eye high on the head; mouth small, protrusible, low on head;
 teeth on jaws fixed, with flattened, notched tips, 8-28 on each jaw; gill rakers 17-19; dorsal rays IX, 28-31; anal rays III, 26-29; pectoral rays 16; pelvic fin I, 5; a single depressible spine fits into a groove on the side of the base of the tail; tail fin concave; scales very small, rough; lateral line complete.


Black or blue-black; with large white blotch below eye; narrow white band encircling mouth; a yellow band, becoming broader posteriorly, at base of dorsal and anal fins; tail fin white with narrow yellow bar posteriorly.



Size: largest specimen, 22 cm.

Habitat: usually seen in shallow water of exposed coral reefs or rocky shores.

Depth: 0-70 m.

Eastern Indian Ocean and the tropical Pacific, mainly at islands; in the eastern Pacific it is known from the tip of Baja California, the SW and SE Gulf of California, southern Mexico, Costa Rica to Ecuador and all the offshore islands.

  WoRMS FishBase Search OBIS Search
ITIS Catalog of Fishes Encyclopedia of Life

Questions or comments

Email STRI data manager
 






Print Friendly Version


 
© Copyright 2008 to 2014 - Smithsonian Tropical Research Institute
Programmed by Coeus Knowledge Systems Pty Ltd