Phylum Mollusca Linnaeus, 1758 - molluscs Subphylum Aculifera Hatschek, 1891 Class Polyplacophora Blainville, 1816 - chitons Order Neoloricata Bergenhayn, 1955 see Subclass Neoloricata Bergenhayn, 1955 Suborder Ischnochitonina Bergenhayn, 1930 see Suborder Chitonina Thiele, 1909 Family Mopaliidae Dall, 1889 Subfamily Katharininae Jakovleva, 1952