; subclass Actinopterygii, order Perciformes)
A monospecific family (Mene maculata) of marine fish, about 20 cm long, that have an unusual body profile. The very deep body almost resembles a flat disc because of the strongly curved ventral contour. A very narrow tail ends in a forked tail fin. Both dorsal and anal fins are long and low; the first ray of the pelvic fin is rather prolonged. Moonfish are found in the warm coastal waters of the Indo-Pacific region.
Subjects: Zoology and Animal Sciences.