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Plexauridae
Plexauridae is a family of marine colonial octocorals in the phylum Cnidaria. Members of this family are found in shallow tropical and subtropical seas. Many species contain symbiotic photosynthetic protists called zooxanthellae. Characteristics The Plexauridae have a branching colony form and many are known as sea rods or sea fans. The axial core of the coral skeleton is horny and hollow, and contains no sclerites. This is covered by a layer of tissue called coenenchyme in which is embedded calcareous sclerites. The sclerites are very varied in form in the Plexauridae, and examination of their morphology is helpful in identifying the different species. The calyces in which the polyps sit are strengthened by further sclerites and have eight fine dividing walls called septa. The polyps each have eight pinnate tentacles. Genera The World Register of Marine Species includes these genera in this family: *'' Acanthacis'' Deichmann, 1936 *'' Acanthomuricea'' Hentschel, 1903 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramuricea Clavata
''Paramuricea clavata'', the violescent sea-whip, is a species of colonial soft coral in the family Plexauridae. It is found in shallow seas of the north-eastern Atlantic Ocean and the north-western Mediterranean Sea as well as Ionian Sea. This species was first described by the French naturalist Antoine Risso in 1826. Description ''P. clavata'' has a branching structure forming a fan-shaped colony in a single plane. The stem and branches are stiffened by gorgonin, a complex protein that produces a horny skeleton. The coenenchyme, a thin living layer of cells, covers the skeleton and the polyps protrude from this, each with eight feeding tentacles surrounding a central mouth. The polyps are up to high and the whole colony up to one m (3 ft) high and 1 m across. The colour is usually red, but may be partly yellow. Distribution and habitat The violescent sea-whip is native to the coasts of Spain and Portugal in the eastern Atlantic Ocean, and to the western Mediterran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthomuricea
''Acanthomuricea'' is a genus of corals belonging to the family Plexauridae. The species of this genus are found in Malesia, Southern Africa. Species: *''Acanthomuricea biserialis'' *''Acanthomuricea dina'' *''Acanthomuricea mberea'' *''Acanthomuricea pulchra'' *''Acanthomuricea purpurea'' *''Acanthomuricea ramosa'' *''Acanthomuricea silpa'' *''Acanthomuricea uimea ''Acanthomuricea'' is a genus of corals belonging to the family Plexauridae. The species of this genus are found in Malesia, Southern Africa. Species: *''Acanthomuricea biserialis'' *''Acanthomuricea dina'' *''Acanthomuricea mberea'' *''Acan ...'' References Plexauridae Octocorallia genera {{octocorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinogorgia
''Echinogorgia'' is a genus of corals belonging to the family Plexauridae. The species of this genus are found in Pacific and Indian Ocean. Species Species: *''Echinogorgia abietina'' *''Echinogorgia armata'' *''Echinogorgia aurantiaca ''Echinogorgia'' is a genus of corals belonging to the family Plexauridae. The species of this genus are found in Pacific and Indian Ocean. Species Species: *''Echinogorgia abietina'' *''Echinogorgia armata ''Echinogorgia'' is a genus of ...'' References Plexauridae Octocorallia genera {{octocorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bebryce
''Bebryce'' is a genus of gorgonian-type octocorals in the family Plexauridae. Species The World Register of Marine Species lists the following species: *''Bebryce asteria'' Bayer & van Ofwegen, 2016 *''Bebryce bocki'' Aurivillius, 1931 *''Bebryce boninensis'' Aurivillius, 1931 *''Bebryce brunnea'' (Nutting, 1908) *''Bebryce cactus'' Bayer, 1994 *''Bebryce cinerea'' Deichmann, 1936 *''Bebryce cofferi'' Bayer & van Ofwegen, 2016 *''Bebryce crucifera'' (Bayer, 1981) *''Bebryce densa'' Tixier-Durivault, 1972 *''Bebryce grandicalyx'' Kükenthal, 1924 *''Bebryce grandis'' Deichmann, 1936 *''Bebryce harpy'' Grasshoff, 1999 *''Bebryce hicksoni'' Thomson & Henderson, 1905 *''Bebryce indica'' Thomson, 1905 *''Bebryce inermis'' Samimi Namin & van Ofwegen, 2010 *''Bebryce mollis'' Philippi, 1842 *''Bebryce otsuchiensis'' Matsumoto & van Ofwegen, 2016 *''Bebryce parastellata'' Deichmann, 1936 *''Bebryce philippii'' Studer, 1889 *''Bebryce rigida'' Tixier-Durivault, 1972 *''Bebryce rotunda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayergorgia
''Bayergorgia'' is a monotypic genus of corals belonging to the family Plexauridae Plexauridae is a family of marine colonial octocorals in the phylum Cnidaria. Members of this family are found in shallow tropical and subtropical seas. Many species contain symbiotic photosynthetic protists called zooxanthellae. Characteri .... The only species is ''Bayergorgia vermidoma''. The species is found in southernmost South America. References Plexauridae Octocorallia genera Monotypic cnidarian genera {{octocorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrogorgia
''Astrogorgia'' is a genus of corals belonging to the family Plexauridae. The species of this genus are found in Southeastern Asia, Indian Ocean. Species Species: *''Astrogorgia arborea'' *''Astrogorgia balinensis'' *''Astrogorgia bayeri ''Astrogorgia'' is a genus of corals belonging to the family Plexauridae. The species of this genus are found in Southeastern Asia, Indian Ocean. Species Species: *''Astrogorgia arborea'' *''Astrogorgia balinensis ''Astrogorgia'' is a genu ...'' References Plexauridae Octocorallia genera {{octocorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eunicea
''Eunicea'' is a genus of gorgonian-type octocorals in the family Plexauridae. These branched octocorals typically have knobby protuberances from which the polyps protrude. They are often stiffened by purple sclerites and some colonies, in brightly lit back-reef areas are purple, though most colonies are brown or grey. The polyps in some species are large and feathery in appearance. The growth of these corals is rapid and they can be kept in a reef aquarium. Species The World Register of Marine Species lists these species: *''Eunicea aspera'' Duchassaing & Michelotti, 1860 *'' Eunicea asperula'' Milne Edwards & Haime, 1857 *'' Eunicea calyculata'' (Ellis & Solander, 1786) *''Eunicea castelnaudi'' Milne Edwards & Haime, 1857 *''Eunicea citrina'' Valenciennes, 1855 *''Eunicea clavigera'' Bayer, 1961 *''Eunicea distans'' Duchassaing & Michelotti, 1860 *''Eunicea echinata'' Valenciennes, 1855 *''Eunicea esperi'' Duchassaing & Michelotti, 1860 *'' Eunicea flexuosa'' (Lamouroux, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protist
A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exclusion of other eukaryotes means that protists do not form a natural group, or clade. Therefore, some protists may be more closely related to animals, plants, or fungi than they are to other protists. However, like the groups ''algae'', ''invertebrates'', and '' protozoans'', the biological category ''protist'' is used for convenience. Others classify any unicellular eukaryotic microorganism as a protist. The study of protists is termed protistology. History The classification of a third kingdom separate from animals and plants was first proposed by John Hogg in 1860 as the kingdom Protoctista; in 1866 Ernst Haeckel also proposed a third kingdom Protista as "the kingdom of primitive forms". Originally these also included prokaryotes, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symbiosis
Symbiosis (from Greek , , "living together", from , , "together", and , bíōsis, "living") is any type of a close and long-term biological interaction between two different biological organisms, be it mutualistic, commensalistic, or parasitic. The organisms, each termed a symbiont, must be of different species. In 1879, Heinrich Anton de Bary defined it as "the living together of unlike organisms". The term was subject to a century-long debate about whether it should specifically denote mutualism, as in lichens. Biologists have now abandoned that restriction. Symbiosis can be obligatory, which means that one or more of the symbionts depend on each other for survival, or facultative (optional), when they can generally live independently. Symbiosis is also classified by physical attachment. When symbionts form a single body it is called conjunctive symbiosis, while all other arrangements are called disjunctive symbiosis."symbiosis." Dorland's Illustrated Medical Dictionary. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colony (biology)
In biology, a colony is composed of two or more conspecific individuals living in close association with, or connected to, one another. This association is usually for mutual benefit such as stronger defense or the ability to attack bigger prey. Colonies can form in various shapes and ways depending on the organism involved. For instance, the bacterial colony is a cluster of identical cells (clones). These colonies often form and grow on the surface of (or within) a solid medium, usually derived from a single parent cell. Colonies, in the context of development, may be composed of two or more unitary (or solitary) organisms or be modular organisms. Unitary organisms have determinate development (set life stages) from zygote to adult form and individuals or groups of individuals (colonies) are visually distinct. Modular organisms have indeterminate growth forms (life stages not set) through repeated iteration of genetically identical modules (or individuals), and it can be diffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
