Menidae

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Menidae (moonfish; 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.