Source : WordNet®

ribbonfish
     n 1: thin deep-water tropical fish 20 to 30 feet long having a
          red dorsal fin [syn: {oarfish}, {king of the herring}, {Regalecus
          glesne}]
     2: marine fish having a long compressed ribbon-like body
     [also: {ribbonfishes} (pl)]

ribbonfishes
     See {ribbonfish}