MOONFISH

opah, moonfish, Lampris regius

(noun) large elliptical brightly colored deep-sea fish of Atlantic and Pacific and Mediterranean

moonfish, Atlantic moonfish, horsefish, horsehead, horse-head, dollarfish, Selene setapinnis

(noun) any of several silvery marine fishes with very flat bodies

Source: WordNet® 3.1

Etymology

Noun

moonfish (plural moonfish or moonfishes)

Any of various flat, oval marine fish species.

Family Monodactylidae (fingerfish, silver angelfish)

Mene maculata, of tropical coastal waters of the Indo-Pacific

Most species of genus Selene

Atlantic spadefish (Chaetodipterus faber)

Family Molidae (ocean sunfish)

The opahs in the family Lamprididae.

The cusk (Brosme brosme), a North Atlantic cod-like fish in the ling family Lotidae, the only species in its genus.

The southern platyfish (Xiphophorus maculatus)

Synonyms

• (Brosme brosme): brismak, brosmius, torsk, tusk

• (Xiphophorus maculatus): common platy

Source: Wiktionary

Moon"fish`, n. (Zoöl.) (a) An American marine fish (Vomer setipennis); -- called also bluntnosed shiner, horsefish, and sunfish. (b) A broad, thin, silvery marine fish (Selene vomer); -- called also lookdown, and silver moonfish. (c) The mola. See Sunfish, 1.

Source: Webster’s Unabridged Dictionary 1913 Edition