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 Lychniscosida Schrammen, 1903 Family Aulocystidae Sollas, 1887 see Family Neoaulocystidae Zhuralevleva, 1962 Genus Diapleura Ijima, 1927 see Genus Scleroplegma Schmidt, 1880