Tuesday, 17 July 2012
Whitemargin Unicornfish (Naso annulatus)
It is brown in color and has a distinguishing "nasal" protrusion. The tail is black surrounded by a white margin. It is often found in large schools off tropical reefs and feeds on zooplankton. The fish has two scutes on the left side. These are found on the caudal peduncle near the tail.