Spirophorida

Spirophorina is a suborder of sea sponges belonging to the class Demospongiae.

species of sponge

Craniella is a genus of marine sponges in the family Tetillidae.

thumb|Cinachyrella sp. thumb|right|200px|Cinachyra australiensis

species of sponge

species of sponge

Cinachyra is a genus of sponge belonging to the family Tetillidae.

Acanthotetilla is a genus of demosponges belonging to the family Tetillidae. They are distinguished from others in the family by the presence of distinctive, heavily spined skeletal structures called "megacanthoxeas".