Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Subphylum Conchifera Gegenbauer, 1878
             Order Anaspidea Fischer, 1883 - sea hares
               Suborder Aplysioidea Lamarck, 1809
                 1 Family Akeridae Mazzarelli, 1891
                 2 Family Aplysiidae Lamarck, 1809