Suborder Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Collosphaeridae Müller, 1858 Genus Acrosphaera Haeckel, 1881 Acrosphaera spinosa (Haeckel, 1862) Acrosphaera spinosa coniculispina K. Takahashi, 1991