Perciform fish of the family Stromateidae, including the genera Pampus, Peprilus and Stromateus.
A rock gunnel, Pholis gunnellus, an eel-like fish found in the intertidal and subtidal zones of the North Atlantic.
The New Zealand fish Odax pullus, also known as greenbone.
The sablefish (Anoplopoma fimbria) (the sablefish is not a true butterfish; but is called such informally)