Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
   Nudipleura Wägele & Willan, 2000
     Nudibranchia Cuvier, 1814 see Order Nudibranchia Cuvier, 1814
       Anthobranchia Minichev, 1970
         Doridoidea Rafinesque, 1815
           Phanerobranchia Fischer, 1883
             1 Family Goniodorididae Adams & Adams, 1854
             2 Family Onchidorididae Gray, 1827
             3 Family Polyceridae Alder & Hancock, 1845
             4 Family Aegiridae P. Fischer, 1883 see Family Aegiretidae Fischer, 1883