[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
     Family Actinommidae Haeckel, 1862
       Genus Cromyomma Haeckel, 1862
         1 Cromyomma circumtextum Haeckel, 1887
         2 †Cromyomma riedeli Nishimura, 1992
         3 Cromyomma villosum Haeckel, 1887