Phylum Porifera Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Order Verongida Bergquist, 1978 1 Family Aplysinidae Carter, 1875 2 Family Pseudoceratinidae Carter, 1885 3 Family Ianthellidae Hyatt, 1875 4 Family Aplysinellidae Bergquist, 1980