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Agelas Mauritiana
''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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Fan
Alcyonacea, or soft corals, are an order of corals. In addition to the fleshy soft corals, the order Alcyonacea now contains all species previously known as "gorgonian corals", that produce a more or less hard skeleton, though quite different from "true" corals (Scleractinia). These can be found in suborders Holaxonia, Scleraxonia, and Stolonifera. They are sessile colonial cnidarians that are found throughout the oceans of the world, especially in the deep sea, polar waters, tropics and subtropics. Common names for subsets of this order are sea fans and sea whips; others are similar to the sea pens of related order Pennatulacea. Individual tiny polyps form colonies that are normally erect, flattened, branching, and reminiscent of a fan. Others may be whiplike, bushy, or even encrusting. A colony can be several feet high and across, but only a few inches thick. They may be brightly coloured, often purple, red, or yellow. Photosynthetic gorgonians can be successfully kept in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
