Phylum Porifera Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Order Dictyoceratida Minchin, 1900 1 Family Irciniidae Gray, 1867 2 Family Thorectidae Bergquist, 1978 3 Family Spongiidae Gray, 1867 4 Family Dysideidae Gray, 1867