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 Opisthobranchia Milne-Edwards, 1846 see Order Opisthobranchia Milne-Edwards, 1848
      Count: [f†f] 100f; †1f
         Clade Sacoglossa Ihering, 1876 see Order Sacoglossa Ihering, 1876
        Count: [f] 9f
           Subclade Placobranchacea Jensen, 1996 see Suborder Placobranchacea Jensen, 1996, orth. inval.
          Count: [f] 6f
             Superfamily Placobranchoidea Gray, 1840, orth. inval. see Superfamily Plakobranchoidea Gray, 1840
            Count: [f] 3f
               Family Placobranchidae Gray, 1840, orth. inval. see Family Plakobranchidae Gray, 1840
              Count: -