Chordata Bateson, 1885 - chordates Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758 Subclass Actinopteri Cope, 1871 see Class Actinopteri Cope, 1871 Order Isospondyli Cope, 1887 see Order Osteoglossiformes Berg, 1940 Suborder Scyphophori see Suborder Notopteroidei 161 Family Mormyridae Bonaparte, 1831 - elephantfishes 162 Family Gymnarchidae Bleeker, 1859 [monotypic] - abas