Suborder Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Actinommidae Haeckel, 1862 Subfamily Actinomminae Takahashi, 1991 see Family Actinommidae Haeckel, 1862 Genus Stylosphaera Ehrenberg, 1847 1 Stylosphaera melpomene Haeckel see Hexacontium melpomene (Haeckel, 1887)