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Sorberacea
Sorberacea were a monoorder and monofamilial class of Benthos, benthic Tunicates. The single order of the class was ''Aspiraculata'', and the single family of that order was ''Hexacrobylidae''. In a taxonomic revision of the Tunicata in 2007, the name "Hexacrobylidae" was declared invalid and members of the family were included in the family Molgulidae in the class Ascidiacea.Sanamyan, K. (2007). Database of extant Ascidiacea. Version of 2 November 2007 They superficially resemble sea squirts but Predation, prey on invertebrates such as crustaceans. They also have some unique physical features that distinguish them from the ascidiaceans, including a severely reduced pharynx, the retention of the dorsal nerve cord as adults, the superficial position of their ganglion and the unique histology of the cells of their digestive tracts. The branchial syphon is large and surrounded by six large lobes; the cloacal syphon is small. They live exclusively in deep water and range in size from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chordate Orders
A chordate () is an animal of the phylum Chordata (). All chordates possess, at some point during their larval or adult stages, five Apomorphy and synapomorphy, synapomorphies, or primary physical characteristics, that distinguish them from all the other taxa. These five synapomorphies include a notochord, Dorsal nerve cord, dorsal hollow nerve cord, endostyle or thyroid, pharyngeal slits, and a post-anal tail. The name “chordate” comes from the first of these synapomorphies, the notochord, which plays a significant role in chordate structure and movement. Chordates are also Bilateral symmetry, bilaterally symmetric, have a coelom, possess a circulatory system, and exhibit Metameric, metameric segmentation. In addition to the morphological characteristics used to define chordates, analysis of genome sequences has identified two conserved signature indels (CSIs) in their proteins: cyclophilin-like protein and mitochondrial inner membrane protease ATP23, which are exclusively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunicate
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrema Unigonas
''Oligotrema'' is a genus of marine tunicate 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 ca ...s.Moreira da Rocha, R.; Gittenberger, A.; Sanamyan, K. (2015)''Oligotrema''.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 2015-09-10 Species * '' Oligotrema lyra'' Monniot C. & Monniot F., 1973 * '' Oligotrema psammatodes'' (Sluiter, 1905) * '' Oligotrema psammites'' Bourne, 1903 * '' Oligotrema sandersi'' (Monniot C. & Monniot F., 1968) * '' Oligotrema unigonas'' (Monniot C. & Monniot F., 1974) Species names currently considered to be synonyms: * ''Oligotrema arcticus'' Hartmeyer, 1923: synonym of '' Asajirus arcticus'' (Hartmeyer, 1923) * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrema Psammites
''Oligotrema'' is a genus of marine tunicates.Moreira da Rocha, R.; Gittenberger, A.; Sanamyan, K. (2015)''Oligotrema''.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 2015-09-10 Species * '' Oligotrema lyra'' Monniot C. & Monniot F., 1973 * '' Oligotrema psammatodes'' (Sluiter, 1905) * '' Oligotrema psammites'' Bourne, 1903 * '' Oligotrema sandersi'' (Monniot C. & Monniot F., 1968) * ''Oligotrema unigonas ''Oligotrema'' is a genus of marine tunicate 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 (includi ...'' (Monniot C. & Monniot F., 1974) Species names currently considered to be synonyms: * ''Oligotrema arcticus'' Hartmeyer, 1923: synonym of '' Asajirus arcticus'' (Hartmeyer, 1923) * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asajirus Ledanoisi
Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. 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 at http://www.marinespecies.org/aphia.php?p=taxdetails&id=146729 on 2015-09-10 '' Asajirus indicus'' was found on the Antarctic Peninsula, West Of Palmer Archipelago Palmer Archipelago, also known as Antarctic Archipelago, Archipiélago Palmer, Antarktiske Arkipel or Palmer Inseln, is a group of islands off the northwestern coast of the Antarctic Peninsula. It extends from Tower Island in the north to Anvers ... at a depth of 2763-2818m. Species * '' Asajirus arcticus'' (Hartmeyer, 1923) * '' Asajirus dichotomus'' (Monniot & Monniot, 1984) * '' Asajirus eunuchus'' (Monniot F. & Monniot C., 1976) * '' Asajirus gulosus'' (Monniot & Monniot, 1984) * '' Asajirus hemisphericus'' (Monniot & Mon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asajirus Indicus
Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. 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 at http://www.marinespecies.org/aphia.php?p=taxdetails&id=146729 on 2015-09-10 '' Asajirus indicus'' was found on the Antarctic Peninsula, West Of Palmer Archipelago at a depth of 2763-2818m. Species * '' Asajirus arcticus'' (Hartmeyer, 1923) * '' Asajirus dichotomus'' (Monniot & Monniot, 1984) * '' Asajirus eunuchus'' (Monniot F. & Monniot C., 1976) * '' Asajirus gulosus'' (Monniot & Monniot, 1984) * '' Asajirus hemisphericus'' (Monniot & Monniot, 1990) * '' Asajirus indicus'' (Oka, 1913) * ''Asajirus ledanoisi Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asajirus
Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. 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 at http://www.marinespecies.org/aphia.php?p=taxdetails&id=146729 on 2015-09-10 ''Asajirus indicus'' was found on the Antarctic Peninsula, West Of Palmer Archipelago at a depth of 2763-2818m. Species * '' Asajirus arcticus'' (Hartmeyer, 1923) * '' Asajirus dichotomus'' (Monniot & Monniot, 1984) * '' Asajirus eunuchus'' (Monniot F. & Monniot C., 1976) * '' Asajirus gulosus'' (Monniot & Monniot, 1984) * '' Asajirus hemisphericus'' (Monniot & Monniot, 1990) * ''Asajirus indicus'' (Oka, 1913) * ''Asajirus ledanoisi Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrema Sandersi
''Oligotrema'' is a genus of marine tunicates.Moreira da Rocha, R.; Gittenberger, A.; Sanamyan, K. (2015)''Oligotrema''.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 2015-09-10 Species * '' Oligotrema lyra'' Monniot C. & Monniot F., 1973 * '' Oligotrema psammatodes'' (Sluiter, 1905) * ''Oligotrema psammites'' Bourne, 1903 * '' Oligotrema sandersi'' (Monniot C. & Monniot F., 1968) * ''Oligotrema unigonas'' (Monniot C. & Monniot F., 1974) Species names currently considered to be synonyms: * ''Oligotrema arcticus'' Hartmeyer, 1923: synonym of '' Asajirus arcticus'' (Hartmeyer, 1923) * ''Oligotrema indicus'' (Oka, 1913): synonym of ''Asajirus indicus Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, R.; Swa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrema Lyra
''Oligotrema'' is a genus of marine tunicates.Moreira da Rocha, R.; Gittenberger, A.; Sanamyan, K. (2015)''Oligotrema''.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 2015-09-10 Species * '' Oligotrema lyra'' Monniot C. & Monniot F., 1973 * '' Oligotrema psammatodes'' (Sluiter, 1905) * ''Oligotrema psammites'' Bourne, 1903 * ''Oligotrema sandersi'' (Monniot C. & Monniot F., 1968) * ''Oligotrema unigonas'' (Monniot C. & Monniot F., 1974) Species names currently considered to be synonyms: * ''Oligotrema arcticus'' Hartmeyer, 1923: synonym of '' Asajirus arcticus'' (Hartmeyer, 1923) * ''Oligotrema indicus'' (Oka, 1913): synonym of ''Asajirus indicus Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, R.; Swal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrema
''Oligotrema'' is a genus of marine tunicates.Moreira da Rocha, R.; Gittenberger, A.; Sanamyan, K. (2015)''Oligotrema''.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 2015-09-10 Species * ''Oligotrema lyra'' Monniot C. & Monniot F., 1973 * '' Oligotrema psammatodes'' (Sluiter, 1905) * ''Oligotrema psammites'' Bourne, 1903 * ''Oligotrema sandersi'' (Monniot C. & Monniot F., 1968) * ''Oligotrema unigonas'' (Monniot C. & Monniot F., 1974) Species names currently considered to be synonyms: * ''Oligotrema arcticus'' Hartmeyer, 1923: synonym of '' Asajirus arcticus'' (Hartmeyer, 1923) * ''Oligotrema indicus'' (Oka, 1913): synonym of ''Asajirus indicus Asajirus is a genus of marine tunicates.Moreira da Rocha, R.; Sanamyan, K. (2015). Asajirus Kott, 1989. In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, R.; Swall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nematode
The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-Parasitism, parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments. Less formally, they are categorized as Helminths, but are taxonomically classified along with Arthropod, arthropods, Tardigrade, tardigrades and other moulting animalia, animals in the clade Ecdysozoa, and unlike platyhelminthe, flatworms, have tubular digestion, digestive systems with openings at both ends. Like tardigrades, they have a reduced number of Hox genes, but their sister phylum Nematomorpha has kept the ancestral protostome Hox genotype, which shows that the reduction has occurred within the nematode phylum. Nematode species can be difficult to distinguish from one another. Consequently, estimates of the number of nematode species described to date vary by author and may change rapidly over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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