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 Oxynoacea Odhner, 1939 see Suborder Oxynoacea Odhner, 1939
          Count: [f] 3f
             1 Superfamily Oxynooidea Stoliczka, 1868 (1847)
            Count: [f] 3f