squir·rel·fish 
(skwûrəl-fĭsh′, skwŭr-)
(skwûrəl-fĭsh′, skwŭr-)n. pl. squirrelfish or squir·rel·fish·es
Any of various small nocturnal fishes of the family Holocentridae of tropical waters, having large eyes and a reddish body with spiny scales.