Suborder Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Spongodiscidae Haeckel, 1862 Genus Spongaster Ehrenberg, 1860 1 Spongaster tetras Ehrenberg, 1860 2 Spongaster pentas Riedel & Sanfilippo, 1970