Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
         Suborder Neotaenioglossa Haller, 1882 see Order Sorbeoconcha Ponder & Lindberg, 1997
           Superfamily Littorinoidea Children, 1834
             Family Lacunidae Gray, 1857 see Subfamily Lacuninae Gray, 1857
               Subfamily Lacuninae Gray, 1857
                 1 Genus Lacuna Turton, 1827
                 2 Genus Aquilonaria Dall, 1886
                 3 Genus Carinolacuna Thiele, 1929
                 4 Genus Dissochilus Cossmann, 1888
                 5 Genus Haloconcha Dall, 1886
                 6 Genus Lacunitunica Golikov & Gulbin, 1978
                 7 Genus Stenotis Adams, 1863