[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
     Family Actinommidae Haeckel, 1862
       Genus Arachnosphaera Haeckel, 1860
         1 Arachnosphaera dichotoma Jørgensen, 1900
         2 Arachnosphaera myriacantha Haeckel, 1860