Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
   Orthogastropoda Ponder & Lindberg, 1995 see Subclass Orthogastropoda Ponder & Lindberg, 1995
     Apogastropoda Salvini-Plawen & Haszprunar, 1987
       Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
         Euthyneura Spengel, 1881
           Nudibranchia Cuvier, 1814 see Order Nudibranchia Cuvier, 1814
             Anthobranchia Minichev, 1970
               1.1 Phyllidia elegans Bergh, 1869
               1.2 Thecacera pennigera (Montagu, 1815)
               2 Hypselodoris orsinii (Vérany, 1846)