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Paranthus Ignotus
''Paranthus'' is a genus of sea anemones in the family Actinostolidae. Characteristics The pedal disc is not swollen. The column is long and smooth and the margin is indistinct. The sphincter is well developed and the tentacles are relatively short, the inner tentacles being longer than the outer ones. Species The following species are recognised by the World Register of Marine Species: *''Paranthus chromatoderus'' (Schmarda, 1852) *''Paranthus crassus'' (Carlgren, 1899) *'' Paranthus ignotus'' (McMurrich, 1904) *'' Paranthus niveus'' (Lesson, 1830) *''Paranthus rapiformis ''Paranthus rapiformis'', the onion anemone, is a species of sea anemone in the family Actinostolidae. It was first described by the French naturalist Charles Alexandre Lesueur in 1817 and is native to the northwestern Atlantic Ocean and the G ...'' (Le Sueur, 1817) *'' Paranthus rhodora'' (Couthouy in Dana, 1846) *'' Paranthus sociatus'' Uchida, 1940 References Taxa named by Angelo Andres Acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angelo Andres
Angelo "Ginobili" Andres (24 March 1851, Tirano –16 July 1934, Milan) was an Italian Zoology, zoologist. Dr. Angelo Andres studied natural history in Pavia, Leipzig, London and Paris. He became a Professor in Moderna. From 1899–1926 he was director of University of Parma, Museo di Storia Naturale in Parma. He was a friend of Anton Dohrn. Andres was a supporter of Darwinism and gave anniversary lectures supporting his ideas.Glick, Thomas F; Shaffer, Elinor S. (2014). ''The Literary and Cultural Reception of Charles Darwin in Europe''. Bloomsbury Academic. p. 517. Works *1884 Le Sea anemone, attinie Monografia del Angelo Andres. Volume primo, contente bibliografia, introduzione e specigrafia. ''Fauna und flora des golfes von Neapel'' 9. Leipzig, W. Engelmann, 1884. Full tex*1910 ''Carlo R. Darwin (nel primo centenario della nascita): lezione fatta all'Università popolare di Parma addì 18 dicembre 1909 dal prof''. Angelo Andres. References External links * EOL ''Encyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Anemone
Sea anemones are a group of predation, predatory marine invertebrates of the order (biology), order Actiniaria. Because of their colourful appearance, they are named after the ''Anemone'', a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and ''hydra (genus), Hydra''. Unlike jellyfish, sea anemones do not have a Jellyfish#Life history and behavior, medusa stage in their life cycle. A typical sea anemone is a single polyp (zoology), polyp attached to a hard surface by its base, but some species live in soft sediment, and a few float near the surface of the water. The polyp has a columnar trunk topped by an oral disc with a ring of tentacles and a central mouth. The tentacles can be retracted inside the body cavity or expanded to catch passing prey. They are armed with cnidocytes (stinging cells). In many species, additional n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') 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". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinostolidae
Actinostolidae is a family of sea anemones in the order Actiniaria. Members of this family are deep sea species, with some occurring at hydrothermal vents. Genera The following genera are recognised by the World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ...: *'' Actinoloba'' de Blainville, 1830 *'' Actinostola'' Verrill, 1883 *'' Antholoba'' Hertwig, 1882 *'' Anthosactis'' Danielssen, 1890 *'' Antiparactis'' Verrill, 1899 *'' Bathydactylus'' Carlgren, 1928 *'' Cnidanthus'' Carlgren, 1927 *'' Glandulactis'' Riemann-Zürneck, 1978 *'' Hadalanthus'' Carlgren, 1956 *'' Hormosoma'' Stephenson, 1918 *'' Isoparactis'' Stephenson, 1920 *'' Ophiodiscus'' Hertwig, 1882 *'' Paranthus'' Andres, 1883 *'' Parasicyonis'' Carlgren, 1921 *'' Pseudoparactis'' Stephe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranthus Chromatoderus
''Paranthus'' is a genus of sea anemones in the family Actinostolidae. Characteristics The pedal disc is not swollen. The column is long and smooth and the margin is indistinct. The sphincter is well developed and the tentacles are relatively short, the inner tentacles being longer than the outer ones. Species The following species are recognised by the World Register of Marine Species: *'' Paranthus chromatoderus'' (Schmarda, 1852) *''Paranthus crassus'' (Carlgren, 1899) *'' Paranthus ignotus'' (McMurrich, 1904) *'' Paranthus niveus'' (Lesson, 1830) *''Paranthus rapiformis ''Paranthus rapiformis'', the onion anemone, is a species of sea anemone in the family Actinostolidae. It was first described by the French naturalist Charles Alexandre Lesueur in 1817 and is native to the northwestern Atlantic Ocean and the G ...'' (Le Sueur, 1817) *'' Paranthus rhodora'' (Couthouy in Dana, 1846) *'' Paranthus sociatus'' Uchida, 1940 References Taxa named by Angelo Andres Act ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranthus Crassus
''Paranthus'' is a genus of sea anemones in the family Actinostolidae. Characteristics The pedal disc is not swollen. The column is long and smooth and the margin is indistinct. The sphincter is well developed and the tentacles are relatively short, the inner tentacles being longer than the outer ones. Species The following species are recognised by the World Register of Marine Species: *'' Paranthus chromatoderus'' (Schmarda, 1852) *'' Paranthus crassus'' (Carlgren, 1899) *'' Paranthus ignotus'' (McMurrich, 1904) *'' Paranthus niveus'' (Lesson, 1830) *''Paranthus rapiformis ''Paranthus rapiformis'', the onion anemone, is a species of sea anemone in the family Actinostolidae. It was first described by the French naturalist Charles Alexandre Lesueur in 1817 and is native to the northwestern Atlantic Ocean and the G ...'' (Le Sueur, 1817) *'' Paranthus rhodora'' (Couthouy in Dana, 1846) *'' Paranthus sociatus'' Uchida, 1940 References Taxa named by Angelo Andres Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranthus Ignotus
''Paranthus'' is a genus of sea anemones in the family Actinostolidae. Characteristics The pedal disc is not swollen. The column is long and smooth and the margin is indistinct. The sphincter is well developed and the tentacles are relatively short, the inner tentacles being longer than the outer ones. Species The following species are recognised by the World Register of Marine Species: *''Paranthus chromatoderus'' (Schmarda, 1852) *''Paranthus crassus'' (Carlgren, 1899) *'' Paranthus ignotus'' (McMurrich, 1904) *'' Paranthus niveus'' (Lesson, 1830) *''Paranthus rapiformis ''Paranthus rapiformis'', the onion anemone, is a species of sea anemone in the family Actinostolidae. It was first described by the French naturalist Charles Alexandre Lesueur in 1817 and is native to the northwestern Atlantic Ocean and the G ...'' (Le Sueur, 1817) *'' Paranthus rhodora'' (Couthouy in Dana, 1846) *'' Paranthus sociatus'' Uchida, 1940 References Taxa named by Angelo Andres Acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranthus Niveus
''Paranthus'' is a genus of sea anemones in the family Actinostolidae. Characteristics The pedal disc is not swollen. The column is long and smooth and the margin is indistinct. The sphincter is well developed and the tentacles are relatively short, the inner tentacles being longer than the outer ones. Species The following species are recognised by the World Register of Marine Species: *''Paranthus chromatoderus'' (Schmarda, 1852) *''Paranthus crassus'' (Carlgren, 1899) *''Paranthus ignotus'' (McMurrich, 1904) *'' Paranthus niveus'' (Lesson, 1830) *''Paranthus rapiformis ''Paranthus rapiformis'', the onion anemone, is a species of sea anemone in the family Actinostolidae. It was first described by the French naturalist Charles Alexandre Lesueur in 1817 and is native to the northwestern Atlantic Ocean and the G ...'' (Le Sueur, 1817) *'' Paranthus rhodora'' (Couthouy in Dana, 1846) *'' Paranthus sociatus'' Uchida, 1940 References Taxa named by Angelo Andres Actin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranthus Rapiformis
''Paranthus rapiformis'', the onion anemone, is a species of sea anemone in the family Actinostolidae. It was first described by the French naturalist Charles Alexandre Lesueur in 1817 and is native to the northwestern Atlantic Ocean and the Gulf of Mexico. Description ''P. rapiformis'' is a small white sea anemone which burrows into the sediment, usually subtidally, but it may be exposed at extreme low water. The base of the column is expanded which anchors it in place, and it is usually attached to a submerged stone or shell. When covered with water, the short tentacles spread out over the surface of the sand. When it is disturbed, the tentacles retract and the column inflates to form a globular shape; this is translucent, with longitudinal white stripes, and resembles a small onion. Biology As a burrowing sea anemone, the pedal disc of ''P. rapiformis'' is replaced by a rounded end known as a "physa" which is used for digging. First the physa is pushed into the soft sedimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
