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 Rossellidae Schulze, 1885
           Subfamily Lanuginellinae Gray, 1872
             Genus Calycosoma Schulze, 1899
             Genus Lanuginella Schmidt, 1870
             Genus Lanugonychia Lendenfeld, 1915
             Genus Lophocalyx Schulze, 1887
             Genus Mellonympha Schulze, 1897