Chondrocladia is a genus of carnivorous demosponges of the family Cladorhizidae. Neocladia was long considered a junior synonym, but has recently become accepted as a distinct genus.
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.
Lyssacinosida is an order of glass sponges (Hexactinellida) belonging to the subclass Hexasterophora. These sponges can be recognized by their parenchymal spicules usually being unconnected, unlike in other sponges in the subclass where the spicules form a more or less tightly connected skeleton. Lyssacine sponges have existed since the Upper Ordovician, and three families are still alive today. The Venus' flower basket is one of the most well-known and culturally significant of the glass sponges.
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.
Pseudospongosorites is a genus of sea sponges belonging to the family Suberitidae. Currently, the genus is considered as monotypic, consisting of a single species Pseudospongosorites suberitoides. It is found in the Caribbean Sea, the Gulf of Mexico and on the Atlantic coast of the United States as far north as North Carolina. This species is known by the common name Florida hermit crab sponge, so named because hermit crabs often use it as shelter.
Ianthella basta is a species of fan-shaped sea sponge in the class Demospongiae. It is also known as the elephant ear sponge, paper sponge, or scroll sponge.
Clathrina broenstedi is a species of calcareous sponge from the Weddell Sea. The species is named after Holger Brøndsted, a Danish sponge researcher. The only spicules present in this species are triactines.
Guancha apicalis was thought to be a species of calcareous sponge in the genus Guancha from Antarctica. It actually never existed.
Rossellidae is a family of glass sponges belonging to the order Lyssacinosa. The family has a cosmopolitan distribution and is found at a large range of depths.
Caulophacus is a genus of glass sponges belonging to the subfamily Lanuginellinae.
Caulophacus elegans is a species of glass sponges belonging to the subfamily Lanuginellinae. The type specimen has been found in Central Kuroshio Current, near Japan.
Smenospongia echina is a species of sea sponge in the class Demospongiae. The scientific name of the species was first validly published in 1934 by Max Walker de Laubenfels, as Polyfibrospongia echina.
Verongula is a genus of sea sponges in the family Aplysinidae.
Sceptrulophora is an order of hexactinellid sponges. They are characterized by sceptrules, a type of microsclere with a single straight rod terminating at a bundle of spines or knobs. An anchor- or nail-shaped sceptrule is called a clavule. A fork-shaped sceptrule, ending at a few large tines, is called a scopule. A broom-shaped sceptrule, ending at many small bristles, is called a sarule.
Bolosoma is a genus of pedunculated siliceous sponges belonging to the family Euplectellidae. This genus lives in deep-sea environments and provides a habitat for a plethora of other benthic species, giving Bolosoma an incredibly important ecological role in the ecosystems it is a part of.
Euplectella paratetractina is a species of glass sponge in the family Euplectellidae. It has been found in waters off the coast of Australia.
Caulophacus brandti is a species of glass sponges belonging to the subfamily Lanuginellinae. It is known from type specimens found in the Weddell Sea. The specific epithet was given in honor of Angelika Brandt.
Caulophacus discohexactinus is a species of glass sponges belonging to the subfamily Lanuginellinae. It is known from a type specimen found in the Weddell Sea. The specific epithet was given to refer to the discohexactine shape of the species' microscleres.
