Schultz (1936), however, employed the common name ragfish to both juveniles and adults at the species level, but he used "ragfishes" for the family Icosteidae (juveniles) and "pelagic fish" for the family Acrotidae (adults).
Gunther placed ragfishes in the family Coryphaenidae, stating that he had failed to find in published descriptions anything that would warrant a generic separation from Schedophilus or the creation of a distinct family "Icosteidae." Lockington (1880) also puzzled over taxonomic status when he listed the ragfish in the family Blennidae.
(1923:646) listed four kinds of "ragfishes" under the family Icosteidae (Acrotus, Icicthys, Icosteus, and Schedophilius medusophagaus).
Thus Regan (1923: 612) wrote: "The exact systematic position of the Icosteidae is uncertain, but the great development of cartilage and the weakness of the bones is evidently secondary, and there is nothing in their organization to prevent the assumption that the Icosteidae represent a specialized and somewhat degenerate development of the Perciform type." Berg (1940:494) accepted Regan's opinion, and placed the family Icosteidae in a separate order Icosteiformes (Malacichthyes).