Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Parazoa (Sollas, 1884) see [unranked] Parazoa (Sollas, 1884)
       Phylum Spongia
         Class Calcarea Bowerbank, 1864 - calcareous sponges
           Order Heterocoela see Order Leucosolenida Hartman, 1958
             Family Sycettidae Dendy, 1893
               Genus [Sycon] Risso, 1826
                 1 Sycon raphanus (Schmidt) see Scypha raphanus (Schmidt, 1862)
                 2 Sycon setosum Schmidt, 1862 see Scypha setosum
                 3 Sycon ciliatum (Fabricius, 1780)