Suborder Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Actinommidae Haeckel, 1862 Subfamily Actinomminae Takahashi, 1991 see Family Actinommidae Haeckel, 1862 Genus Cromyechinus Haeckel, 1881 1 Cromyechinus borealis (Cleve, 1898) see Actinomma boreale Cleve, 1899