The Collaborative International Dictionary
Vomer setipennis
Moonfish \Moon"fish`\, n. (Zo["o]l.)
An American marine fish ( Vomer setipennis); -- called also bluntnosed shiner, horsefish, and sunfish.
A broad, thin, silvery marine fish ( Selene vomer); -- called also lookdown, and silver moonfish.
The mola. See Sunfish, 1.