Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
Count: 29s
   Orthogastropoda Ponder & Lindberg, 1995 see Subclass Orthogastropoda Ponder & Lindberg, 1995
  Count: 28s
     Apogastropoda Salvini-Plawen & Haszprunar, 1987
    Count: 27s
       Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
      Count: 23s
         Euthyneura Spengel, 1881
        Count: 22s
           Nudibranchia Cuvier, 1814 see Order Nudibranchia Cuvier, 1814
          Count: 11s
             1 Eleutherobranchia
            Count: 8s
             2 Anthobranchia Minichev, 1970
            Count: 3s