Kingdom Animalia Linnaeus, 1758 - animals
Phylum Porifera Grant, 1836 - sponges
Class Demospongiae Sollas, 1885 - demosponges
Order Poecilosclerida Topsent, 1928
Suborder Mycalina Hajdu, van Soest & Hooper, 1994
1 Family Cladorhizidae Dendy, 1922
2 Family Desmacellidae Ridley & Dendy, 1886
3 Family Esperiopsidae Hentschel, 1923
4 Family Guitarridae Dendy, 1924
5 Family Hamacanthidae Gray, 1872
6 Family Isodictyidae Dendy, 1924
7 Family Merliidae Kirkpatrick, 1908 [monotypic]
8 Family Mycalidae Lundbeck, 1905
9 Family Podospongiidae de Laubenfels, 1936