Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
       Order Acochlidioidea Küthe, 1935 [monotypic] see Order Acochlidia Odhner, 1937
         Superfamily Euacochlidioidea nom. inval.
           Family Minicheviellidae Starobogatov, 1983 see Family Asperspinidae Rankin, 1979
             Genus Minicheviella Starobogatov, 1983 see Genus Asperspina Rankin, 1979