Gyrostoma (cnidarian)
''Gyrostoma'' is a genus of cnidarians belonging to the family Actiniidae. The species of this genus are found in America, Africa. Species: *''Gyrostoma dubium'' *''Gyrostoma dysancritum'' *''Gyrostoma euchlorum'' *''Gyrostoma incertum'' *''Gyrostoma inequale'' *''Gyrostoma monodi'' *''Gyrostoma sanctithomae'' *''Gyrostoma selkirkii'' *''Gyrostoma stimpsonii'' *''Gyrostoma triste Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * '' Polistes (Gyrostoma)'', a subgenus of wasps in the genus ''Polistes Wasps of the cosmopolitan genus ''Polistes'' (the only genus in the tr ...'' *'' Gyrostoma tulearense'' References Actiniidae Hexacorallia genera {{Actiniaria-stub ...
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Cnidarians
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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Actiniidae
Actiniidae is the largest family of sea anemones, to which most common, temperate, shore species belong. Most members of this family do not participate in symbioses with fishes. Three exceptions are the bubble-tip anemone (with anemonefish and certain cardinalfish), snakelocks anemone (with Incognito goby) and ''Urticina piscivora'' (with painted greenling). The systematics of Actiniidae is often quite difficult. The problem with identification of genera within this family is that most species are readily distinguishable when alive but when fixated lose their color and some other features. Arrangement of tentacles is important in defining genera for Actiniaria families. There may be one tentacle per space between mesenteries or there may be more than one tentacle between each two mesenteries. Members of the family Actiniidae have one tentacle per space. Genera Genera in this family include: * ''Actinia'' Linnaeus, 1767 * '' Actinioides'' Haddon & Shackleton, 1893 * '' Actino ...
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Gyrostoma Dubium
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * '' Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Dysancritum
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Euchlorum
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Incertum
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Inequale
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Monodi
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Sanctithomae
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Selkirkii
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Stimpsonii
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...

Gyrostoma Triste
Gyrostoma may refer to: * ''Gyrostoma'' (cnidarian), a genus of cnidarians in the family Actiniidae * ''Polistes (Gyrostoma)'', a subgenus of wasps in the genus '' Polistes'', in the family Vespidae * ''Gyrostoma'', a genus of gastropods in the family Pleuroceridae, synonym of ''Gyrotoma ''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to t ...