Polymastiidae

	Polymastiidae Polymastiidae is a family of demosponges found in oceans throughout the world. It is the only family in the monotypic order Polymastiida. A useful diagnostic characteristic of members of this family is the presence of numerous surface papillae although this feature is shown by some other sponges. Genera The following genera are recognised in the family Polymastiidae * '' Acanthopolymastia'' * '' Astrotylus'' * '' Atergia'' * '' Koltunia'' * '' Polymastia'' * '' Proteleia'' * '' Pseudotrachya'' * '' Quasillina'' * '' Radiella'' * '' Ridleia'' * '' Sphaerotylus'' * '' Spinularia'' * '' Tentorium'' * '' Trachyteleia'' * '' Tylexocladus'' * '' Weberella'' ReferencesNorth East Atlantic TaxaWoRMS - Polymastiidae Gray, 1867 {{demosponge-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Tylexocladus ''Tylexocladus'' is a genus of deep-water sea sponge belonging to the family Polymastiidae Polymastiidae is a family of demosponges found in oceans throughout the world. It is the only family in the monotypic order Polymastiida. A useful diagnostic characteristic of members of this family is the presence of numerous surface papillae .... These are small rounded sponges with a bristly surface bearing one or more raised openings (known as "osculae"). Species Species include: '' Tylexocladus hispidus'' '' Tylexocladus joubini'' References * Polymastiidae {{demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Acanthopolymastia ''Acanthopolymastia'' is a small genus of demosponges belonging to the family Polymastiidae Polymastiidae is a family of demosponges found in oceans throughout the world. It is the only family in the monotypic order Polymastiida. A useful diagnostic characteristic of members of this family is the presence of numerous surface papillae .... It has three describe species. These small, bristly, cushion-shaped sponges are only known from deep-sea sites (to a depth of 3400 m) in the southern oceans. Species Species include: '' Acanthopolymastia acanthoxa'' (Koltun, 1964) '' Acanthopolymastia bathamae'' Kelly-Borges & Bergquist, 1997 '' Acanthopolymastia pisiformis'' Kelly-Borges & Bergquist, 1997 References Polymastiidae Taxa named by Patricia Bergquist Taxa named by Michelle Kelly (marine scientist) Animals described in 1997 {{demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atergia ''Atergia'' is a genus of sponges belonging to the family Polymastiidae Polymastiidae is a family of demosponges found in oceans throughout the world. It is the only family in the monotypic order Polymastiida. A useful diagnostic characteristic of members of this family is the presence of numerous surface papillae .... Species: '' Atergia corona'' '' Atergia corticata'' '' Atergia villosa'' References {{Taxonbar, from=Q4116776 Polymastiidae Sponge genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Polymastia (sponge) ''Polymastia'' is a genus of sea sponges containing about 30 species. These are small to large encrusting or dome-shaped sponges with a smooth surface having many teat-shaped projections (papillae). In areas of strong wave action, this genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ... does not grow the teat structures, but instead grows in a corrugated form.Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. ''Two Oceans: a guide to the marine life of southern Africa'' Species The following species are recognised: References North East Atlantic Taxa* Sponge genera Taxa named by James Scott Bowerbank {{demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a hard, often massive skeleton made of calcium carbonate, either aragonite or calcite. They are predominantly leuconoid in structure. Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. Where spicules of silica are present, they have a different shape from those in the otherwise similar glass sponges. Some species, in particular from the Antarctic, obtain the silica for spicule building from the ingestion of siliceous diatoms. The many diverse orders in this class include all of the large sponges. Most are marine dwellers, but one order ( Spongillida) live in freshwater environments. Some species are brightly colored, with great variety in body shape; the largest species are ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tentorium (sponge) The tentorium (plural tentoria) is a term used to refer to the framework of internal supports within an arthropod head. The tentorium is formed by ingrowths of the exoskeleton An exoskeleton (from Greek ''éxō'' "outer" and ''skeletós'' "skeleton") is an external skeleton that supports and protects an animal's body, in contrast to an internal skeleton (endoskeleton) in for example, a human. In usage, some of the ..., called apophyses, which fuse in various ways to provide rigid support for the muscles of the head. References Arthropod anatomy Animal head {{Arthropod-anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]