Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
       Informal Group Opisthobranchia Milne-Edwards, 1846 see Order Opisthobranchia Milne-Edwards, 1848
         "Group" Acochlidiacea Odhner, 1937 see Suborder Acochlidiacea Odhner, 1937
           1 Superfamily Acochlidioidea Küthe, 1935 see Suborder Hedylopsacea Starobogatov, 1983
           2 Superfamily Hedylopsoidea Odhner, 1952 see Suborder Hedylopsacea Starobogatov, 1983
           3 Superfamily Palliohedyloidea Rankin, 1979 see Suborder Hedylopsacea Starobogatov, 1983
           4 Superfamily Strubellioidea Rankin, 1979 see Suborder Hedylopsacea Starobogatov, 1983