Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Pulmonata Cuvier, 1814 [monotypic] - land snails and slugs see Order Pulmonata Cuvier, 1814
       Order Archaeopulmonata Morton, 1955 see Suborder Archaepulmonata
         Superfamily Ellobioidea Pfeiffer, 1854 (1822)
           1 Family Ellobiidae Pfeiffer, 1854 (1822)
           2 Family Carychiidae Jeffreys, 1830 see Subfamily Carychiinae Jeffreys, 1830
           3 Family Otinidae Adams & Adams, 1855 [monotypic]