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 Corbitellinae Gray, 1872
             Genus Bolosoma Ijima, 1904
             Genus Corbitella Gray, 1867
             Genus Dictyaulus Schulze, 1896
             Genus Dictyocalyx Schulze, 1885
             Genus Hertwigia Schmidt, 1880
             Genus Heterotella Gray, 1867
             Genus Hyalostylus Schulze, 1886
             Genus Regadrella Schmidt, 1880
             Genus Rhabdopectella Schmidt, 1880
             Genus Saccocalyx Schulze, 1896
             Genus Trachycaulus Schulze, 1886
             Genus Walteria Schulze, 1886