Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
Count: 410f; †195f
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
  Count: [f†f] 410f; †172f
     Clade Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
    Count: [f†f] 238f; †29f
       Informal Group "Lower Heterobranchia"
      Count: [f†f] 19f; †21f
         Superfamily Acteonoidea d'Orbigny, 1843
        Count: -
           Family †Acteonellidae Gill, 1871
          Count: -
             Subfamily †Itieriinae Cossmann, 1896
            Count: -