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
           Pleurocoela see Clade Euopisthobranchia Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010
          Count: 5s
             Cephalaspidea Fischer, 1883 see Order Cephalaspidea Fischer, 1883
            Count: 3s
               Philine aperta (Linnaeus, 1767) - open paper-bubble
              Count: -