Polycitoridae
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Polycitoridae
Polycitoridae is a family of tunicates belonging to the order Aplousobranchia. Genera: * '' Archidistoma'' Garstang, 1891 * '' Brevicollus'' Kott, 1990 * '' Cystodytes'' Drasche, 1884 * ''Eucoelium'' Savigny, 1816 * ''Eudistoma'' Caullery, 1909 * ''Exostoma'' Kott, 1990 * '' Millarus'' Monniot & Monniot, 1988 * ''Polycitor'' Renier, 1804 * '' Polycitorella'' Michaelsen, 1924 * ''Rhombifera The Eocrinoidea are an extinct class of echinoderms that lived between the Early Cambrian and Late Silurian periods. They are the earliest known group of stalked, arm-bearing echinoderms, and were the most common echinoderms during the Cambrian. ...'' Pérès, 1956 * '' Salix'' Kott, 2005 References {{Taxonbar, from=Q4925722 Aplousobranchia ...
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Eudistoma
''Eudistoma'' is a genus of sea squirts belonging to the class Ascidiacea. It was first described in 1909 by Maurice Caullery. Originally it was thought to be a subgenus of '' Distoma''. ''Eudistoma'' is the most species-rich genus in the family Polycitordae, with 124 valid species as of 2014. They are found in tropical and temperate waters; some species are also found in the Antarctic and subtropical area. Description In 1909 Caullery described ''Eudistoma'' as a subgenus of ''Distoma'' due to the rows of stigmata in the pharynx. In 1917 Ritter and Forsyth described it as a separate genus without explanation. Three subsequent papers published in 1919, 1921 and 1942 all considered it to be a subgenus of ''Polycitor''. ''Eudistoma'' was finally considered a valid genus in 1945 due to "the three rows of pharyngeal slits, long esophagus, flat stomach in the posterior region of the abdomen, very conspicuous longitudinal muscles extending from the pharynx to the end of the abdomen a ...
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Aplousobranchia
Aplousobranchia is an order of sea squirts in the class Ascidiacea. They are colonial animals, and are distinguished from other sea squirts by the presence of relatively simple pharyngeal baskets. This provides the etymology of their name: in ancient greek, () means "simple". The posterior part of the abdomen contains the heart and gonads, and is typically larger than in other sea squirts. Taxonomy Order Aplousobranchia * Family Clavelinidae Forbes & Hanley 1848 ycnoclavellidae Kott 1990**''Clavelina'' Savigny 1816 [''Bradiclavella'' Zirpolo 1925; ''Chondrostachys'' Macdonald 1858; ''Dendroclavella'' Oka 1927; ''Podoclavella'' Herdman 1890; ''Rhodozona'' Van Name 1902; ''Stereoclavella'' Herdman 1890; ''Synclavella'' Caullery 1900] **''Euclavella'' Kott 1990 **''Nephtheis'' Gould 1856 [''Oxycorynia'' Drasche 1882] **''Pycnoclavella'' Garstang 1891 [''Archiascidia'' Julin 1904] * Family Didemnidae Giard 1872 iplosominae Giard 1872**'' Atriolum'' Kott 1983 **''Clitella'' Kott 20 ...
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Archidistoma
''Archidistoma'' is a genus of tunicates in the family Polycitoridae Polycitoridae is a family of tunicates belonging to the order Aplousobranchia. Genera: * '' Archidistoma'' Garstang, 1891 * '' Brevicollus'' Kott, 1990 * '' Cystodytes'' Drasche, 1884 * ''Eucoelium'' Savigny, 1816 * ''Eudistoma'' Caullery, 1909 .... List of species: *'' Archidistoma aggregatum'' *'' Archidistoma dublum'' References Enterogona Tunicate genera {{tunicata-stub ...
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Cystodytes
''Cystodytes'' is a genus of tunicates belonging to the family Polycitoridae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species: *'' Cystodytes antarcticus'' *'' Cystodytes dellechiajei'' *'' Cystodytes denudatus'' *'' Cystodytes durus'' *'' Cystodytes fuscus'' *'' Cystodytes guinensis'' *'' Cystodytes inflatus'' *'' Cystodytes lobatus'' *'' Cystodytes luteus'' *'' Cystodytes morifer'' *'' Cystodytes mucosus'' *'' Cystodytes multipapillatus'' *'' Cystodytes philippinensis'' *'' Cystodytes planus'' *'' Cystodytes punctatus'' *'' Cystodytes ramosus'' *'' Cystodytes roseolus'' *'' Cystodytes rufus'' *'' Cystodytes semicataphractus'' *'' Cystodytes senegalense'' *'' Cystodytes solitus'' *'' Cystodytes variabilis'' ...
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Eucoelium
''Eucoelium'' is a genus of tunicates belonging to the family Polycitoridae. The species of this genus are found in Australia and Southern Africa. Species: *''Eucoelium coronarium'' *''Eucoelium hospitiolum'' *''Eucoelium mariae'' *''Eucoelium orientalis'' *''Eucoelium pallidus'' *''Eucoelium peresi'' *''Eucoelium setoensis'' *''Eucoelium stelliferum ''Eucoelium'' is a genus of tunicates belonging to the family Polycitoridae. The species of this genus are found in Australia and Southern Africa. Species: *''Eucoelium coronarium'' *''Eucoelium hospitiolum'' *''Eucoelium mariae'' *''Eucoeli ...'' References {{Taxonbar, from=Q4913499 Tunicates ...
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Polycitor
''Polycitor'' is a genus of tunicates belonging to the family Polycitoridae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species Species: *'' Polycitor adriaticus'' *'' Polycitor africanus'' *'' Polycitor annulus'' *'' Polycitor aurantiacus'' *'' Polycitor calamus'' *'' Polycitor cerasus'' *'' Polycitor circes'' *'' Polycitor clava'' *'' Polycitor columna'' *'' Polycitor crypticus'' *'' Polycitor crystallinus'' *'' Polycitor cuneatus'' *'' Polycitor emergens'' *'' Polycitor epicolon'' *'' Polycitor giganteus'' *'' Polycitor glareosus'' *'' Polycitor luderitzi'' *'' Polycitor nitidus'' *'' Polycitor nubilus'' *'' Polycitor obeliscus'' *'' Polycitor porrecta'' *'' Polycitor profundus'' *'' Polycitor prol ...
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Tunicates
A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata (). It is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates). The subphylum was at one time called Urochordata, and the term urochordates is still sometimes used for these animals. They are the only chordates that have lost their myomeric segmentation, with the possible exception of the 'seriation of the gill slits'. Some tunicates live as solitary individuals, but others replicate by budding and become colonies, each unit being known as a zooid. They are marine filter feeders with a water-filled, sac-like body structure and two tubular openings, known as siphons, through which they draw in and expel water. During their respiration and feeding, they take in water through the incurrent (or inhalant) siphon and expel the filtered water through the excurrent (or exhalant) siphon. Most adult tunicates are sessile, immobile and perman ...
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Exostoma
''Exostoma'' is a genus of sisorid catfishes native to Asia. These species are distributed in the Brahmaputra drainage of northeast India, and east and south to the Salween drainages in Burma. ''E. berdmorei'' is found in the Sittang and Salween drainages in Burma. ''E. labiatum'' is known from the Brahmaputra drainage in northeast India, but has also been recorded in the Salween drainage in Burma, the Ayeyarwady drainage in China, and the Brahmaputra drainage in Tibet and Burma. ''E. stuarti'' is from the Ayeyarwady River of Burma and India; however, it has not been collected since its original discovery. ''E. labiatum'' is found in mountain rapids. In a 2007 checklist of sisorid and erethistid catfishes, Thomson lists ''E. stuarti'' and ''E. vinciguerrae'' as valid species. In a 2007 checklist of catfishes, Ferraris lists these two species as species inquerendae, noting that these species are either treated as valid or as synonyms of ''E. labiatum''. Species These are the curr ...
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Rhombifera
The Eocrinoidea are an extinct class of echinoderms that lived between the Early Cambrian and Late Silurian periods. They are the earliest known group of stalked, arm-bearing echinoderms, and were the most common echinoderms during the Cambrian. Eocrinoids were a paraphyletic group that may have been ancestral to six other classes: Rhombifera, Diploporita, Coronoidea, Blastoidea, Parablastoidea, and Paracrinoidea. They may also be the progenitors of the cystoids, who are believed to be ancestral to modern crinoids. The earliest genera had a short holdfast and irregularly structured plates. Later forms had a fully developed stalk with regular rows of plates. They were benthic suspension feeders, with five ambulacra on the upper surface, surrounding the mouth and extending into a number of narrow arms. An unusual Ordovician form was the conical '' Bolboporites'' with its single brachiole.Rozhnov, S.V. and Kushlina, V.B. 1994. Interpretation of new data on ''Bolboporites'' Pan ...
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