鲈鳗

鲈鳗	lú mán	(Tw) giant mottled eel (Anguilla marmorata), aka swamp eel or marbled eel / (coll.) (alternative for the nearly homonymous 流氓) gangster
鲈	lú	common perch / bass
鳗	mán	(bound form) eel (Anguilla japonica)