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 Demospongiae Sollas, 1885 - demosponges
           Order Cornacuspongida
             Suborder Aporhabdina
               Family Spongiidae Gray, 1867
                 Genus [Spongia] Linnaeus, 1759
                   Spongia irregularis (Lendenfeld, 1889)