Fishes Class Myxini Jaekel, 1911 Order Myxiniformes - hagfishes Family Myxinidae Rafinesque, 1815 - hagfishes Subfamily Eptatretinae Bonaparte, 1850 - multi-gill hagfishes Genus Dodecatrema Fowler, 1947 see Genus Eptatretus Cloquet, 1819