Nason brun

Naso unicornis
Bluespine unicornfish
Ume

Particularités

This unicornfish varies from green to brown. It has scalpels and blue lips. its horns never go past its muzzle. Adults have a truncated tail  with two filaments at the ends. It lives between 3 and 600 feet deep along the exposed reefs. It primarily eats leafy algae.

sources

Photo :Brian Gratwicke