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 Dactylocalycidae Gray, 1867 Genus Dactylocalyx Stutchbury, 1842