Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938
         Suborder Stenoglossa Bouvier, 1887
           Superfamily Muricoidea Rafinesque, 1815
             Family Olividae Latreille, 1825 - olive snails
               Subfamily Ancillinae Adams & Adams, 1853 see Subfamily Ancillariinae Swainson, 1840
                 1 Genus Ancilla Lamarck, 1799
                 2 Genus Ancillarina Bellardi, 1882
                 3 Genus Amalda Adams & Adams, 1853
                 4 Genus Ancillista Iredale, 1936
                 5 Genus Austrancilla Habe, 1959
                 6 Genus Gracilancilla Thiele, 1925