A bony fish in the family Holocentridae. Squirrelfishes are small, brightly coloured spiny-finned fishes, commonly found living on coral reefs. Most squirrelfishes are reddish in colour mixed with silver and white. All species have large eyes. During the day they are usually found hiding in crevices or beneath ledges. They are crepuscular species, most active at low light levels and at night.