Suborder Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
   Family Actinommidae Haeckel, 1862
     Subfamily Actinomminae Takahashi, 1991 see Family Actinommidae Haeckel, 1862
       Genus Hexacontium Haeckel, 1881
         1 Hexacontium hostile Cleve, 1900
         2 Hexacontium axotrias Haeckel, 1887
         3 Hexacontium heracliti (Haeckel, 1887)
         4 Hexacontium hystricina (Haeckel, 1887)