Phylum Porifera Grant, 1836 - sponges
   Subphylum Hexactinellida Schmidt, 1870 see Class Hexactinellida Schmidt, 1870
     Class Hexasterophora F.E. von Schulze see Subclass Hexasterophora Schulze, 1886
       Order Lyssacinosida Zittel, 1877
         Family Euplectellidae Gray, 1867
           Subfamily Euplectellinae Gray, 1867
             Genus Euplectella Owen, 1841
               Euplectella aspergillum Owen, 1841
               Euplectella suberea Wyville Thomson, 1877