(J. R. Forster, 1801)
Naso lituratus is a species of fish in the family Acanthuridae, the tangs and unicornfishes. Its common names include barcheek unicornfish, clown tang, masked unicornfish, naso tang, orange-spine surgeonfish, orange-spine unicornfish, Pacific orange-spine unicorn, poll unicornfish, redlip surgeonfish, smooth-head unicornfish, and striped unicornfish.
This species can be found in the Indian Ocean and the Pacific Ocean. This species can be easily recognised by two bright orange forward-hooked spines on the caudal peduncle (the tail base), its orange lips and black face mask. The body is brownish-grey with yellow nape and there is a broad black band on the dorsal fin. It reaches about 45 centimeters long.
It can be found on coral reefs and often occurs in pairs.
The fish is sometimes kept in aquaria. It is active and requires a tank of at least 135 gallons so it has room to swim. It should be provided with hiding places. Most individuals will take a varied diet, but some will feed only on macroalgae. It is generally nonaggressive toward tankmates, except for members of its own species and possibly related taxa.
- McIlwain, J., et al. 2012. Naso lituratus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Downloaded on 03 June 2013.
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