Halichondria is a genus of sea sponges belonging to the family Halichondriidae. These are massive, amorphous sponges with clearly separated inner and outer skeletons consisting of bundles of spicules arranged in a seemingly random pattern.
Spongia is a genus of marine sponges in the family Spongiidae, originally described by Carl Linnaeus in 1759, containing more than 60 species. Some species, including Spongia officinalis, are used as cleaning tools, but have mostly been replaced in that use by synthetic or plant material.
Axinella is a genus of sponges in the family Axinellidae first described in 1862 by Eduard Oscar Schmidt. Species of Axinella occur in the Indian and Pacific Oceans. Most of these sponges are smaller than 20 cm, and have a yellow or orange colour.
Hymeniacidon is a genus of sea sponges in the class Demospongiae. Some members of the genus are known to be mobile, achieving speeds of between 1 and 4 mm per day.
Stelletta is a genus of sea sponges belonging to the family Ancorinidae.
Tethya is a genus of sea sponges belonging to the family Tethyidae. Members of this genus all have a spherical body form and some are known to be able to move at speeds of between 1 and 4 mm per day.
Clathria is a large genus of demosponges in the family Microcionidae.
Echinoclathria is a genus of demosponge in the family Microcionidae.
Biemna is a genus of sea sponges in the family Biemnidae.
Haliclona is a genus of demosponges in the family Chalinidae.
Ircinia is a genus of sea sponges in the family Irciniidae.
Darwinellidae is a family of sponges in the order Dendroceratida.
Clathria (Clathria) is a subgenus of demosponge in the family Microcionidae.
Tedania is a genus of sea sponges in the family Tedaniidae.
Smenospongia is a genus of demosponges in the family Thorectidae.
Mycale is a genus of demosponge with 240 recognised species in 11 subgenera. It has been a large genus with multiple subdivisions since it was first described in 1867.
Acanthella is a genus of sponges in the family Dictyonellidae, which was first described in 1862 by Eduard Oscar Schmidt. The type species is Acanthella acuta Schmidt, 1862.
Dysidea is a genus of sponges belonging to the family Dysideidae.
Antho is a genus of sponges belonging to the family Microcionidae. The genus has a cosmopolitan distribution and is known from virtually all parts of the global ocean. There are 62 species in five subgenera.
Phorbas is a genus of demosponges belonging to the family Hymedesmiidae.
