noun, plural (especially collectively) ribbonfish (especially referring to two or more kinds or species) ribbonfishes.
any of several marine fishes
of the families Trachipteridae, Regalicidae, and Lophotidae, having a long, compressed, ribbonlike body.
any of several related fishes
, as the oarfish.
any of several unrelated but similar fishes
, as the cutlassfish and jackknife-fish.