moonfish

noun6

1. •
   Any of various species of fish of a round appearance in several families.
2. •
   Any member of the species Mene maculata (razor moonfish), sole accepted, extant species of family Menidae, of tropical coastal waters of the Indo-Pacific area;
3. •
   A platyfish, of either of Xiphophorus maculatus or X. variatus (family Poeciliidae).
4. •
   Any member of most species of the genera Selene and Paraselene (family Carangidae).
5. •
   Any member of the genus Lampris of opahs (family Lamprididae);
6. •
   Any member of the species Mola mola (common mola or ocean sunfish; family Molidae).