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Polyzoa (tunicate)
''Polyzoa'' is a genus of Ascidiacea, ascidian tunicates in the family (biology), family Styelidae. Species within the genus ''Polyzoa'' include:Sanamyan, K. (2015)''Polyzoa'' Lesson, 1831 .In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, R.; Swalla, B.J.; Turon, X. (2015) Ascidiacea World Database. Accessed through: World Register of Marine Species on 2015-12-23 * ''Polyzoa atlantica'' Sanamyan et al., 2009 * ''Polyzoa exigua'' Kott, 1990 * ''Polyzoa insularis'' Millar, 1967 * ''Polyzoa minor'' Monniot, 1970 * ''Polyzoa nodosa'' Kott, 1990 * ''Polyzoa opuntia'' Lesson, 1830 * ''Polyzoa pacifica'' Tokioka, 1951 * ''Polyzoa translucida'' Ritter & Forsyth, 1917 * ''Polyzoa vesiculiphora'' Tokioka, 1951 * ''Polyzoa violacea'' (Oka, 1915) Species names currently considered to be synonyms: * ''Polyzoa coccinea'' (Cunningham, 1871): synonym of ''Polyzoa opuntia'' Lesson, 1830 * ''Polyzoa depressa'' (Oka, 1926): synonym of ''Polyzoa violacea'' (Oka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascidiacea
Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose. Ascidians are found all over the world, usually in shallow water with salinities over 2.5%. While members of the Thaliacea (salps, doliolids and pyrosomes) and Appendicularia (larvaceans) swim freely like plankton, sea squirts are sessile animals after their larval phase: they then remain firmly attached to their substratum, such as rocks and shells. There are 2,300 species of ascidians and three main types: solitary ascidians, social ascidians that form clumped communities by attaching at their bases, and compound ascidians that consist of many small individuals (each individual is called a zooid) forming large colonies. Sea squirts feed by taking in water through a tube, the oral siphon. The water enters the mouth and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunicate
Tunicates are marine invertebrates belonging to the subphylum Tunicata ( ). This grouping 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. Despite their simple appearance and very different adult form, their close relationship to the vertebrates is certain. Both groups are chordates, as evidenced by the fact that during their mobile larval stage, tunicates possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, post-anal tail, and an endostyle. They resemble a tadpole. Tunicates are the only chordates that have lost their Myomere, myomeric segmentation, with the possible exception of the seriation of the gill slits. However, Doliolida, doliolids still display segmentation of the muscle bands. Some tunicates live as solitary individuals, but others replicate by budding and be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Styelidae
Styelidae is a family of ascidian tunicates. Genera *'' Alloeocarpa'' Michaelsen, 1900 *'' Arnbackia'' Brewin, 1950 *''Asterocarpa'' Brewin, 1946 *'' Bathyoncus'' Herdman, 1882 *'' Bathystyeloides'' Seeliger, 1907 *'' Berillia'' Brewin, 1952 *'' Botryllocarpa'' Hartmeyer, 1909 *'' Botrylloides'' Milne-Edwards, 1841 *'' Botryllus'' Gaertner, 1774 *'' Chorizocarpa'' Michaelsen, 1904 * '' Chorizocormus'' Herdman, 1886 *'' Cnemidocarpa'' Huntsman, 1913 *''Dendrodoa'' MacLeay, 1824 *'' Dextrocarpa'' Millar, 1955 *'' Diandrocarpa'' Van Name, 1902 *'' Dicarpa'' Millar, 1955 *'' Distomus'' Gaertner, 1774 *'' Eusynstyela'' Michaelsen, 1904 *''Gynandrocarpa ''Gynandrocarpa'' is a genus of Ascidiacea, ascidian tunicates in the family (biology), family Styelidae. Species within the genus ''Gynandrocarpa'' include:Sanamyan, K. (2015)''Gynandrocarpa'' Michaelsen, 1900 .In: Shenkar, N.; Gittenberger, A. ...'' Michaelsen, 1900 *'' Kukenthalia'' Hartmeyer, 1903 *'' Metandrocarpa'' Michaelsen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyzoa Atlantica
Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of simple, aquatic invertebrate animals, nearly all living in sedentary colonies. Typically about long, they have a special feeding structure called a lophophore, a "crown" of tentacles used for filter feeding. Most marine bryozoans live in tropical waters, but a few are found in oceanic trenches and polar waters. The bryozoans are classified as the marine bryozoans (Stenolaemata), freshwater bryozoans (Phylactolaemata), and mostly-marine bryozoans (Gymnolaemata), a few members of which prefer brackish water. 5,869living species are known. Originally all of the crown group Bryozoa were colonial, but as an adaptation to a mesopsammal (interstitial spaces in marine sand) life or to deep-sea habitats, secondarily solitary forms have since evolved. Solitary species have been described in four genera; (''Aethozooides'', ''Aethozoon'', ''Franzenella'' and ''Monobryozoon''). The latter having ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyzoa Exigua
Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of simple, aquatic animal, aquatic invertebrate animals, nearly all living in sedentary Colony (biology), colonies. Typically about long, they have a special feeding structure called a lophophore, a "crown" of tentacles used for filter feeder, filter feeding. Most Marine (ocean), marine bryozoans live in tropical waters, but a few are found in oceanic trenches and polar waters. The bryozoans are classified as the Stenolaemata, marine bryozoans (Stenolaemata), Phylactolaemata, freshwater bryozoans (Phylactolaemata), and Gymnolaemata, mostly-marine bryozoans (Gymnolaemata), a few members of which prefer brackish water. 5,869living species are known. Originally all of the crown group Bryozoa were colonial, but as an adaptation to a mesopsammal (interstitial spaces in marine sand) life or to deep-sea habitats, secondarily solitary forms have since evolved. Solitary species have been described i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
