Mollusca Linnaeus, 1758 - molluscs Aplacophora von Ihering, 1876 - aplacophorans see Phylum Mollusca Linnaeus, 1758 Neomeniomorpha Pelseneer, 1906 - neomenioids see Class Solenogastres Gegenbaur, 1878 Family Simrothiellidae Salvini-Plawen, 1978 Genus Plawenia Scheltema & Schander, 2000 Plawenia schizoradulata (Salvini-Plawen, 1978) Scheltema & Schander, 2000