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 Simrothiella Pilsbry, 1898 1 Simrothiella margaritacea (Koren & Danielssen, 1877)