The Barcheek unicornfish (Naso lituratus) is a saltwater fish of the family Acanthuridae that grows up to 46 cm.
Description
The orangespine unicornfish is a surgeonfish of the family Acanthuridae from the western and central Pacific (the Indian Ocean form is the related species Naso elegans). The species grows to about 46 cm and has a grey-brown body with a yellow dorsal fin, black facial markings and orange lips; unlike many unicornfishes it has no horn on the forehead. It inhabits areas of coral, rock and rubble of lagoon and seaward reefs. As a herbivore it grazes mainly brown algae. On each side of the tail base it bears two fixed, orange-rimmed plate spines that act as sharp blades; never grab the fish by the tail, as they can give deep cuts.
Frequently asked questions
How do you recognise the Barcheek unicornfish?
The Barcheek unicornfish has a flattened, disc-shaped body, is mainly brown and shows a plain pattern.
Where does the Barcheek unicornfish live?
The Barcheek unicornfish lives in the sea (marine waters) and is mostly found around stony or rocky ground.
How big does the Barcheek unicornfish get?
The Barcheek unicornfish grows to a maximum of about 46 cm.
Is the Barcheek unicornfish dangerous to humans?
The Barcheek unicornfish is venomous — handle spines with care and seek medical help after a sting if needed.
Is the Barcheek unicornfish edible?
The Barcheek unicornfish is rarely eaten.
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Naso
More from the family Acanthuridae
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.