Rhysia Autumnalis
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Rhysia Autumnalis
''Rhysia'' is a genus of cnidarians belonging to the monotypic family Rhysiidae. The species of this genus are found in Western North America. Species: *'' Rhysia autumnalis'' *''Rhysia fletcheri ''Rhysia'' is a genus of cnidaria Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is c ...'' *'' Rhysia halecii'' References Filifera Hydrozoan genera {{Anthoathecata-stub ...
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Cnidaria
Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. Cnidarians mostly have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Both forms have a single orifice and body cavity that are used for digestion and respiration. Many cnidarian species produce colonies that are single organisms composed of medusa-like or polyp-like zooids, or both (hence they are trimorphic). Cnidarians' activities are coordinated by a decentralized nerve net and simple receptors. Several free-swimming species of Cubozoa and Scyphozo ...
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Rhysia Autumnalis
''Rhysia'' is a genus of cnidarians belonging to the monotypic family Rhysiidae. The species of this genus are found in Western North America. Species: *'' Rhysia autumnalis'' *''Rhysia fletcheri ''Rhysia'' is a genus of cnidaria Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is c ...'' *'' Rhysia halecii'' References Filifera Hydrozoan genera {{Anthoathecata-stub ...
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Rhysia Fletcheri
''Rhysia'' is a genus of cnidaria Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that th ...ns belonging to the monotypic family Rhysiidae. The species of this genus are found in Western North America. Species: *'' Rhysia autumnalis'' *'' Rhysia fletcheri'' *'' Rhysia halecii'' References Filifera Hydrozoan genera {{Anthoathecata-stub ...
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Rhysia Halecii
''Rhysia'' is a genus of cnidarians belonging to the monotypic family Rhysiidae. The species of this genus are found in Western North America. Species: *''Rhysia autumnalis'' *''Rhysia fletcheri ''Rhysia'' is a genus of cnidaria Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is c ...'' *'' Rhysia halecii'' References Filifera Hydrozoan genera {{Anthoathecata-stub ...
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Filifera
Filifera is a suborder of hydrozoans in the order Anthoathecata. They are found in marine, brackish and freshwater habitats. Characteristics Members of this suborder are characterised by the filiform tentacles of the polyps which do not terminate in knobs. The rose corals, family Stylasteridae, secrete calcium carbonate exoskeletons around a network of stolons. Families According to the World Register of Marine Species, the following families are found in this suborder : * Australomedusidae Russell, 1971 * Axoporidae Boschma, 1951 † * Balellidae Stechow, 1922 *Bougainvilliidae Lütken, 1850 * Bythotiaridae Maas, 1905 *Clathrozoellidae Peña Cantero, Vervoort & Watson, 2003 * Cordylophoridae von Lendenfeld, 1885 * Cytaeididae L. Agassiz, 1862 * Eucodoniidae Schuchert, 1996 *Eudendriidae L. Agassiz, 1862 * Heterotentaculidae Schuchert, 2010 *Hydractiniidae L. Agassiz, 1862 * Jeanbouilloniidae Pagès, Flood & Youngbluth, 2006 *Magapiidae Schuchert & Bouillon, 2009 * Niobiida ...
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