Monactis (cnidarian)
''Monactis'' is a genus of sea anemones in the family Hormathiidae Hormathiidae is a family of sea anemones in the class Anthozoa. Genera Genera in this family include: * '' Actinauge'' Verrill, 1883 * ''Adamsia'' Forbes, 1840 * '' Allantactis'' Danielssen, 1890 * ''Calliactis'' Verrill, 1869 * '' Cataphellia' .... There is only a single species known in this genus, ''Monactis vestita''; it is found in the north-eastern Atlantic Ocean. References Hormathiidae {{Hexacorallia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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. phylogenetic analysis should c ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Sea Anemones
Sea anemones are a group of predatory marine invertebrates of the 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''. Unlike jellyfish, sea anemones do not have a medusa stage in their life cycle. A typical sea anemone is a single 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 nourishment comes from a symbiotic relationship with single-celled dinoflagellates, with zooxant ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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 opi ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Hormathiidae
Hormathiidae is a family of sea anemones in the class Anthozoa. Genera Genera in this family include: * '' Actinauge'' Verrill, 1883 * ''Adamsia'' Forbes, 1840 * ''Allantactis'' Danielssen, 1890 * '' Calliactis'' Verrill, 1869 * '' Cataphellia'' Stephenson, 1929 * '' Chitonanthus'' * '' Chondranthus'' Migot & Portmann, 1926 * '' Chondrophellia'' Carlgren, 1925 * '' Gliactis'' * '' Handactis'' Fautin, 2016 * '' Hormathia'' Gosse, 1859 * '' Hormathianthus'' Carlgren, 1943 * '' Leptoteichus'' Stephenson, 1918 * ''Monactis'' Riemann-Zurneck, 1986 * '' Paracalliactis'' Carlgren, 1928 * ''Paraphellia ''Paraphellia'' is a genus of cnidarians belonging to the family Hormathiidae. The species of this genus are found in Western Europe, Northern Africa, Malesia Malesia is a biogeographical region straddling the Equator and the boundaries of ...'' Haddon, 1889 * '' Paraphelliactis'' Carlgren, 1928 * '' Parastephanauge'' Dufaure, 1959 * '' Phelliactis'' Simon, 1892 References ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |