(informal) The sablefish (Anoplopoma fimbria) (the sablefish is not a true butterfish; but is called such informally)
(obsolete) The Murray perch, Oligorus mitchelli; an Australian perciform fish of Murray river, now known as trout cod, Maccullochella macquariensis http://www.fishbase.org/Nomenclature/SynonymsList.php?ID=6308&SynCode=26048&GenusName=Maccullochella&SpeciesName=macquariensis, http://www.fishbase.org/summary/Maccullochella-macquariensis.html.
A rock gunnel, Pholis gunnellus, an eel-like fish found in the intertidal and subtidal zones of the North Atlantic.
Perciform fish of the family Stromateidae, including the genera Pampus, Peprilus and Stromateus.
The New Zealand fish Odax pullus, also known as greenbone.
