The Clathrinida are an order of calcareous sponges found in marine environments. These sponges have an asconoid structure and lack a true dermal membrane or cortex. The spongocoel is lined with choanocytes.
Homosclerophorida is an order of marine sponges. It is the only order in the monotypic class Homoscleromorpha. The order is composed of two families: Plakinidae and Oscarellidae.
Ascandra izuensis is a species of sea sponge in the family Clathrinidae. The species is named after the Izu peninsula where the holotype was collected.
Clathrina multiformis is a species of calcareous sponge from Russia.
Racekiela ryderi is a species of freshwater sponge in the family Spongillidae. It was first described by Edward Potts in 1882. It was collected on Sable Island in 1899 by John Macoun, a biologist with the Geological Survey of Canada, and given the name Heteromeyenia macouni by A.H. Mackay in 1900. It was originally assumed to be endemic to Sable Island but is now considered to be the same species as Racekiela ryderi, which is more broadly distributed.
Agelas gracilis, commonly known as candy cane sponge, is a species of demosponge. It lives primarily in Australian waters. It has a symbiotic relationship with the white zoanthid making red and white polyps.
Dictyoceratida is an order of sponges in the subclass Ceractinomorpha containing five families. Along with the Dendroceratida, it is one of the two orders of demosponges that make up the keratose or "horny" sponges, in which a mineral skeleton is minimal or absent and a skeleton of organic fibers containing spongin, a collagen-like material, is present instead.
Guancha apicalis was thought to be a species of calcareous sponge in the genus Guancha from Antarctica. It actually never existed.
Pachydictyum is a genus of freshwater sponge in the family Malawispongiidae. It is monotypic and represented by a single species, Pachydictyum globosum. It lives in Sulawesi, Indonesia.
Cladorhiza inversa is a species of sponge in the taxonomic class Demospongiae. The body of the sponge consists of a spicule and fibers and is water absorbent.
Cladorhiza segonzaci is a species of sponge in the taxonomic class Demospongiae. The body of the sponge consists of a spicule and fibers and is water absorbent.
Stupenda is a genus of sea sponges. It is the only genus in the monotypic family Stupendidae and is represented by a single species, Stupenda singularis.
Sycon yatsui is a species of calcareous sponge belonging to the family Sycettidae. The scientific name of the species was first published in 1929.
Bubarida is an order of demosponges in the subclass Heteroscleromorpha.
Scopalinidae is an family of demosponges in the subclass Heteroscleromorpha. It is the only family in the monotypic order Scopalinida.
Tethyida is an order of sea sponges in the subclass Heteroscleromorpha.
Spongillida is an order of freshwater sponges in the subclass Heteroscleromorpha.
Azoricidae is a family of marine sponges belonging to the order of Tetractinellida.
Verongula is a genus of sea sponges in the family Aplysinidae.
Villogorgia rubra is a species of colonial soft coral sea fan in the family Plexauridae. The scientific name of the species was first validly published in 1899 by Isa Hiles.
