Habitat: Marine, reef-associated. Natural History Notes: Nocturnal mobile Invertebrate feeder. Feeds on ophiurans, molluscs, annelids and crustaceans. Solitary, in small groups or large schools. The young pick parasites from the bodies of larger fishes. Depth: 2 - 20m Characteristics: Deep-bodied. Two diagonal black bands, one from corner of mouth through eye to nape and the other anteriorly on body. Body posterior to bar with alternating stripes of silvery blue and yellow. Fins yellow.