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Aeginidae
Aeginidae is a family of hydrozoans in the order Narcomedusae. The family comprises 6 genera and 8 species. Taxonomy The following genera are recognized in the family Aeginidae:Aeginidae World Register of Marine Species. Retrieved 2011-11-06. * '''' Eschscholtz, 1829 (2 species) *'' Aeginona'' Lindsay, 2017 (monotypic – '' Aeginona brunnea'') *'' Aeginura'' Haeckel, 1879 (2 species) *'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeginidae
Aeginidae is a family of hydrozoans in the order Narcomedusae. The family comprises 6 genera and 8 species. Taxonomy The following genera are recognized in the family Aeginidae:Aeginidae World Register of Marine Species. Retrieved 2011-11-06. * '''' Eschscholtz, 1829 (2 species) *'' Aeginona'' Lindsay, 2017 (monotypic – '' Aeginona brunnea'') *'' Aeginura'' Haeckel, 1879 (2 species) *'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathykorus Bouilloni
''Bathykorus bouilloni'' is a species of hydrozoan first described in 2010. It is a deep-sea species found in the Arctic Ocean, and appears to be common at depths below .''Bathykorus bouilloni'' Raskoff , 2010 Arctic Ocean Diversity. Retrieved November 7, 2011. It is the only species in the monotypic ''Bathykorus''. The genus name comes from the ''bathy'' meaning "deep" and ''korus'' meaning "helmet", referring to the depth at which this species is found and to the shape of the bell. Its helmet-like appearance bears a resemblance to the helmet of |
Narcomedusae
Narcomedusae is an order of hydrozoans in the subclass Trachylinae. Members of this order do not normally have a polyp stage. The medusa has a dome-shaped bell with thin sides. The tentacles are attached above the lobed margin of the bell with usually a gastric pouch above each. There are no bulbs on the tentacles and no radial canals. Narcomedusans are mostly inhabitants of the open sea and deep waters. They can be found in the Mediterranean in large numbers. Feeding Behavior Narcomedusae use their tentacles to catch large, fast-moving prey. They do this by holding their tentacles perpendicular to the direction they are swimming to cover a larger area. If something is caught they bend the tentacle inwards and coil them at the tips to their mouths. References Gallery File:Aeginura grimaldii by Haeckel.png, ''Aeginura grimaldii'' by Ernst Haeckel Ernst Heinrich Philipp August Haeckel (; 16 February 1834 – 9 August 1919) was a German zoologist, naturalist, eugenicis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aegina (genus)
''Aegina citrea'' is a genus of hydrozoans in the family Aeginidae. Species There are two recognized species in the 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 com ... ''Aegina'': References Hydrozoan genera Bioluminescent cnidarians Aeginidae {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeginura
''Aeginura'' is a genus of hydrozoans in the family Aeginidae Aeginidae is a family of hydrozoans in the order Narcomedusae. The family comprises 6 genera and 8 species. Taxonomy The following genera are recognized in the family Aeginidae:axon inquirendum* ''Aeginura myosura'' Haeckel, 1879 axon inquirendum* ''Aeginura nausithoe'' (Haeckel, 1879) axon inquirendum Refe ...
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Bathykorus
''Bathykorus bouilloni'' is a species of hydrozoan first described in 2010. It is a deep-sea species found in the Arctic Ocean, and appears to be common at depths below .''Bathykorus bouilloni'' Raskoff , 2010 Arctic Ocean Diversity. Retrieved November 7, 2011. It is the only species in the monotypic ''Bathykorus''. The genus name comes from the ''bathy'' meaning "deep" and ''korus'' meaning "helmet", referring to the depth at which this species is found and to the shape of the bell. Its helmet-like appearance bears a resemblance to the helmet of [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Gegenbaur
Karl Gegenbaur (21 August 1826 – 14 June 1903)"Karl Gegenbaur – Encyclopædia Britannica" (biography), ''Encyclopædia Britannica'', 2006, Britannica.coBritannica-KarlG was a German anatomist and professor who demonstrated that the field of comparative anatomy offers important evidence supporting of the theory of evolution. As a professor of anatomy at the University of Jena (1855–1873) and at the University of Heidelberg (1873–1903), Karl Gegenbaur was a strong supporter of Charles Darwin's theory of organic evolution, having taught and worked, beginning in 1858, with Ernst Haeckel, eight years his junior. Gegenbaur's book ''Grundzüge der vergleichenden Anatomie'' (1859; English translation ''Elements of Comparative Anatomy'' by Francis Jeffrey Bell, 1878) became the standard textbook, at the time, of evolutionary morphology, emphasizing that structural similarities among various animals provide clues to their evolutionary history. Karl Gegenbaur noted that the most re ... [...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] |
Hydrozoans
Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly (''Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid fo ... [...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] |
