Agelas Schmidti
''Agelas'' is a genus of sea sponge in the class Demospongiae. Ecology and distribution Members of this genus are filter feeders. and occur in the West Indies, the Mediterranean Sea, the Red Sea and the Indian Ocean in shallow tropical and subtropical waters down to a depth of or exceptionally . Spicules Some authorities report that the spongin fibres contain no coring spicules Spicules are any of various small needle-like anatomical structures occurring in organisms Spicule may also refer to: *Spicule (sponge), small skeletal elements of sea sponges *Spicule (nematode), reproductive structures found in male nematodes ( ... while others report that there are some of variable length. Fernando Parra-Velandia however, describing the Caribbean species in the group, writes that "The presence of verticillated acanthostyle spicules and a fibroreticulate skeleton of spongin fibres cored and/or echinated by spicules characterize this group." Species The World Register of Marine Speci ...
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Sea Fan
Alcyonacea is the old scientific order name for the informal group known as "soft corals". It is now an unaccepted name for class Octocorallia. It became deprecated . The following text should be considered a historical, outdated way of treating the taxonomy of Anthozoa and Octocorallia. Some, or many parts of it, are no longer valid. Any remaining information found to be still valid, should be carefully merged into Octocorallia. Alcyonacea are an order of sessile colonial cnidarians that are found throughout the oceans of the world, especially in the deep sea, polar waters, tropics and subtropics. Whilst not in a strict taxonomic sense, Alcyonacea are commonly known as soft corals. The term "soft coral" generally applies to organisms in the two orders Pennatulacea and Alcyonacea with their polyps embedded within a fleshy mass of coenenchymal tissue. Consequently, the term "gorgonian coral" is commonly handed to multiple species in the order Alcyonacea that produce a ...
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Agelas Citrina
''Agelas'' is a genus of sea sponge in the class Demospongiae. Ecology and distribution Members of this genus are filter feeders. and occur in the West Indies, the Mediterranean Sea, the Red Sea and the Indian Ocean in shallow tropical and subtropical waters down to a depth of or exceptionally . Spicules Some authorities report that the spongin fibres contain no coring spicules Spicules are any of various small needle-like anatomical structures occurring in organisms Spicule may also refer to: *Spicule (sponge), small skeletal elements of sea sponges *Spicule (nematode), reproductive structures found in male nematodes ( ... while others report that there are some of variable length. Fernando Parra-Velandia however, describing the Caribbean species in the group, writes that "The presence of verticillated acanthostyle spicules and a fibroreticulate skeleton of spongin fibres cored and/or echinated by spicules characterize this group." Species The World Register of Marine Speci ...
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Agelas Gracilis
''Agelas gracilis'', commonly known as candy cane sponge, is a species of demosponge. It lives primarily in Australian waters. It has a symbiotic Symbiosis (Ancient Greek : living with, companionship < : together; and ''bíōsis'': living) is any type of a close and long-term biolo ...

Agelas Flabelliformis
''Agelas flabelliformis'', also known as the elephant ear sponge, is a species of demosponge. It takes the form of a large leathery slender flap and is found in the Caribbean area at depths down to . Description The elephant ear sponge consists of a large thin flap of spongy material attached edgewise to the substrate by a short peduncle or stem about in diameter. It is usually less than thick but may reach a height and width of a metre (yard) or so. There is often a central lobe with two side flaps. The consistency is firm and leathery but also fragile. On one side it has many large, circular osculi (holes) scattered across the surface. On the other side are small pores and a few, widely dispersed, irregular osculi and some groups of smaller ones. Each vent is surrounded by a collar or rim of thickened skin. The tissue forming the sponge is strengthened by the incorporation of a single type of mineralised spicule. These spicules are classified as acanthostyles and consist of c ...
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Agelas Dispar
''Agelas dispar'' is a species of demosponge in the family Agelasidae. It lives on shallow-water reefs in the Caribbean Sea and around the West Indies. Taxonomy ''Agelas dispar'' is the type species of the genus and was first described in 1864 by the French naturalist Édouard Placide Duchassaing de Fontbressin and the Italian naturalist Giovanni Michelotti. They deposited the holotype in Amsterdam. In 1932, the zoologists M. Burton and H.S. Rao, unaware that the holotype was still in existence, deposited a neotype in the Natural History Museum in London, but this specimen has since disappeared. Description ''Agelas dispar'' forms massive irregularly-shaped, sometimes bulbous mounds or may be encrusting. It can grow to as much as across. The consistency is spongy but firm; the surface is smooth with many exhalent pores of irregular shape and size, often in shallow pits. The colour externally is pinkish-brown, reddish-brown or deep brown. Internally there are large cavities, man ...
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Agelas Dilatata
''Agelas'' is a genus of sea sponge in the class Demospongiae. Ecology and distribution Members of this genus are filter feeders. and occur in the West Indies, the Mediterranean Sea, the Red Sea and the Indian Ocean in shallow tropical and subtropical waters down to a depth of or exceptionally . Spicules Some authorities report that the spongin fibres contain no coring spicules Spicules are any of various small needle-like anatomical structures occurring in organisms Spicule may also refer to: *Spicule (sponge), small skeletal elements of sea sponges *Spicule (nematode), reproductive structures found in male nematodes ( ... while others report that there are some of variable length. Fernando Parra-Velandia however, describing the Caribbean species in the group, writes that "The presence of verticillated acanthostyle spicules and a fibroreticulate skeleton of spongin fibres cored and/or echinated by spicules characterize this group." Species The World Register of Marine Speci ...
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