bonytongueEtymologybony + tongue, in reference to a toothed bone on the floor of the mouth.nounAny in the family Osteoglossidae of large freshwater fishes or its parent groupings, suborder Osteoglossoidei and order Osteoglossiformes.“They tell us that the fresh waters at Hainin must have been substantial, for they included the remains of a large predatorial fish known as a bonytongue, or saratoga.”