Naso (genus)

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Temporal range: Eocene to present[1]
Nabre u0.gif
Short-nosed unicornfish, N. brevirostris
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Acanthuridae
Genus: Naso
Lacépède, 1801

See text

The unicornfishes are tropical, herbivorous marine surgeonfishes in the genus Naso. They are so named because of a spike that protrudes from their foreheads. Some species have a bulbous protrusion rather than a pronounced spike, and some lack a spike altogether. Unicornfishes usually have a pair of spines on each side of the tail shaft that are used for defense.


The 20 currently recognized species in this genus are:[2]



  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology 364: 560. Retrieved 2008-01-08. 
  2. ^ Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Naso in FishBase. December 2012 version.