[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Actinommidae Haeckel, 1862 Genus Hexalonche Haeckel, 1881 †Hexalonche ? nakasekoi Petrushevskaya & Kozlova, 1979