Mollusca Linnaeus, 1758 - molluscs Aculifera Hatschek, 1891 Aplacophora von Ihering, 1876 - aplacophorans see Phylum Mollusca Linnaeus, 1758 Chaetodermomorpha Pelseneer, 1906 - chaetoderms see Class Caudofoveata Boettger, 1956 Chaetodermatidae von Ihering, 1786