Unicornfish

Unicornfish
Naso brevirostris
Information
Common Name	Spotted unicornfish
Scientific Classification
Kingdom	Animalia
Phylum	Chordata
Class	Actinopterygii
Order	Perciformes
Family	Acanthuridae
Genus	Naso (Lacepede, 1801)
Conservation Status (IUCN 3.1)
Least Concern

They are so named because of a spike that protrudes from the forehead. These fish are also known as filefish in America.

Species

There are about 20 recognized species in this genus:

• Naso annulatus (Quoy & Gaimard, 1825) (Whitemargin unicornfish)
• Naso brachycentron (Valenciennes, 1835) (Humpback unicornfish)
• Naso brevirostris (G. Cuvier, 1829) (Spotted unicornfish)
• Naso caeruleacauda (J. E. Randall, 1994)
• Naso caesius (J. E. Randall & Bell, 1992) (Gray unicornfish)
• Naso elegans (Rüppell, 1829) (Elegant unicornfish)
• Naso fageni Morrow, 1954 (Horseface unicornfish)
• Naso hexacanthus (Bleeker, 1855) (Sleek unicornfish)
• Naso lituratus (J. R. Forster, 1801) (Orangespine unicornfish)
• Naso lopezi Herre, 1927 (Elongate unicornfish)
• Naso maculatus J. E. Randall & Struhsaker, 1981
• Naso mcdadei J. W. Johnson, 2002 (Squarenose unicornfish)
• Naso minor (J. L. B. Smith, 1966) (Slender unicorn)
• Naso reticulatus J. E. Randall, 2001
• Naso tergus H. C. Ho, K. N. Shen & C. W. Chang, 2011
• Naso thynnoides (G. Cuvier, 1829) (Oneknife unicornfish)
• Naso tonganus (Valenciennes, 1835) (Bulbnose unicornfish)
• Naso tuberosus Lacépède, 1801 (Humpnose unicornfish)
• Naso unicornis (Forsskål, 1775) (Bluespine unicornfish)
• Naso vlamingii (Valenciennes, 1835) (Bignose unicornfish)