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