Any of various fishes of the family Cyclopteridae,especially Cyclopterus lumpus of North Atlantic waters,having pelvic fins united to form a suction disk and a body bearing prominent tubercles.

• 圆鳍鱼，圆鳍鱼科的几种鱼，尤其是北大西洋圆鳍鱼，有结合成吸盘的腹鳍，全身呈永久结节状。