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Rathkea Lizzioides
''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae. The species of this genus are found in Europe, Northern Russia and Northern America. Species: *''Rathkea africana'' *''Rathkea antarctica'' *''Rathkea formosissima'' *''Rathkea hyalina ''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae. The species of this genus are found in Europe, Northern Russia and Northern America. Species: *''Rathkea africana'' *''Rathkea antarctica'' *''Rathkea formosissima ...'' *'' Rathkea lizzioides'' *'' Rathkea octopunctata'' *'' Rathkea rubence'' References Rathkeidae 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 Fresh water, freshwater and Marine habitats, 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 (biology), cell thick. Cnidarians mostly have two basic body forms: swimming Medusa (biology), medusae and Sessility (motility), sessile polyp (zoology), polyps, both of which are Symmetry (biology)#Radial symmetry, radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Both forms have a single Body orifice, orifice and body cavity that are used for digestion and respiration (physiology), respiration. Many cnidarian species produce Colony (biology), colonies that are single organisms composed of medusa-like or polyp (z ...
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Rathkeidae
Rathkeidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnob .... Genera: * '' Allorathkea'' Schmidt, 1972 * '' Lizzia'' Forbes, 1846 * '' Podocorynoides'' Schuchert, 2007 * '' Rathkea'' Brandt, 1837 References Filifera Cnidarian families {{Anthoathecata-stub ...
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Rathkea Africana
''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae Rathkeidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-know .... The species of this genus are found in Europe, Northern Russia and Northern America. Species: *'' Rathkea africana'' *'' Rathkea antarctica'' *'' Rathkea formosissima'' *'' Rathkea hyalina'' *'' Rathkea lizzioides'' *'' Rathkea octopunctata'' *'' Rathkea rubence'' References Rathkeidae Hydrozoan genera {{Anthoathecata-stub ...
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Rathkea Antarctica
''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae. The species of this genus are found in Europe, Northern Russia and Northern America. Species: *''Rathkea africana ''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae Rathkeidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum ...'' *'' Rathkea antarctica'' *'' Rathkea formosissima'' *'' Rathkea hyalina'' *'' Rathkea lizzioides'' *'' Rathkea octopunctata'' *'' Rathkea rubence'' References Rathkeidae Hydrozoan genera {{Anthoathecata-stub ...
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Rathkea Formosissima
''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae. The species of this genus are found in Europe, Northern Russia and Northern America. Species: *''Rathkea africana'' *''Rathkea antarctica ''Rathkea'' is a genus of cnidarians belonging to the family Rathkeidae. The species of this genus are found in Europe, Northern Russia and Northern America. Species: *''Rathkea africana ''Rathkea'' is a genus of cnidarians belonging ...'' *'' Rathkea formosissima'' *'' Rathkea hyalina'' *'' Rathkea lizzioides'' *'' Rathkea octopunctata'' *'' Rathkea rubence'' References Rathkeidae Hydrozoan genera {{Anthoathecata-stub ...
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