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Asteriidae
The Asteriidae are a diverse family of Asteroidea (sea stars) in the order Forcipulatida. It is one of three families in the order Forcipulatida. Genera The World Register of Marine Species lists these genera within the family Asteriidae (in a field of 6 families): * '' Adelasterias'' Verrill, 1914 * ''Anasterias'' Perrier, 1875 * '' Aphanasterias'' Fisher, 1923 * '' Aphelasterias'' Fisher, 1923 * '' Asterias'' Linnaeus, 1758 * ''Astrometis'' Fisher, 1923 * ''Astrostole'' Fisher, 1923 * '' Caimanaster'' A.M. Clark, 1962 * '' Calasterias'' Hayashi, 1975 * ''Coronaster'' Perrier, 1885 * '' Coscinasterias'' Verrill, 1867 * '' Cryptasterias'' Verrill, 1914 * ''Diplasterias'' Perrier, 1891 * '' Distolasterias'' Perrier, 1896 * '' Evasterias'' Verrill, 1914 * '' Icasterias'' Fisher, 1923 * '' Kenrickaster'' A.M. Clark, 1962 * ''Leptasterias'' Verrill, 1866 * '' Lethasterias'' Fisher, 1923 * '' Lysasterias'' Fisher, 1908 * '' Lysastrosoma'' Fisher, 1922 * ''Marthast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptasterias Hexactis
''Leptasterias hexactis'' is a species of starfish in the family Asteriidae, commonly known as the six-rayed star. It is found in the intertidal zone of the western seaboard of the United States. It is a predator and is unusual among starfish in that it broods its eggs and young. Taxonomy ''Leptasterias hexactis'' forms part of a species complex. Over the years, various authorities have discussed the phylogenetic relationships of ''L. epichlora'', ''L. aequalis'' and ''L. hexactis'', all species of ''Leptasterias'' found in the north west Pacific Ocean. The authorities were Bush (1918), Fisher (1930), Chia (1966), Kwast (1990) and Stickle (1992). More recent morphological and behavioural studies have resulted, according to the World Register of Marine Species (WoRMS) in the retention of a single species, ''L. hexactis'', with the other two being considered synonyms. WoRMS now recognizes three subspecies, ''L. hexactis hexactis'' (Stimpson, 1862) ''L. hexactis occidentalis'' Djak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asterias
''Asterias'' is a genus of the Asteriidae family of sea stars. It includes several of the best-known species of sea stars, including the (Atlantic) common starfish, ''Asterias rubens'', and the northern Pacific seastar, ''Asterias amurensis''. The genus contains a total of eight species in all. All species have five arms and are native to shallow oceanic areas (the littoral zone) of cold to temperate parts of the Holarctic. These starfish have planktonic larvae. ''Asterias amurensis'' is an invasive species in Australia and can in some years become a pest in the Japanese mariculture industry. History The genus ''Asterias'' was first described by Carl Linnaeus in the 10th edition of Systema Naturae in 1758 when he published ''A. rubens''. It was for a time the only species, but by the early 1800s a few dozen taxa had been described in this genus. In 1825 Thomas Say listed six species native to the coasts of the United States (which at the time consisted of the east coast from M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplasterias
''Diplasterias'' is a genus of starfish in the family Asteriidae. Species The World Register of Marine Species lists the following species: * '' Diplasterias brandti'' (Bell, 1881) * ''Diplasterias brucei ''Diplasterias brucei'' is a species of starfish in the family Asteriidae. It is found in the Pacific Ocean and Southern Ocean. It is a predator and scavenger and is unusual among starfish in that it broods its young. Description ''D. brucei'' ...'' (Koehler, 1908) * '' Diplasterias kerguelenensis'' (Koehler, 1917) * '' Diplasterias meridionalis'' (Perrier, 1875) * '' Diplasterias octoradiata'' (Studer, 1885) * '' Diplasterias radiata'' (Koehler, 1923) * '' Diplasterias spinosa'' Perrier, 1881 References Asteriidae Taxa named by Edmond Perrier {{Asteroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coscinasterias
''Coscinasterias'' is a genus of sea stars of the family Asteriidae. Species There are four recognized species: * ''Coscinasterias acutispina'' (Stimpson, 1862) * ''Coscinasterias calamaria'' (Gray, 1840) – Eleven-arm sea star * ''Coscinasterias muricata'' Verrill, 1867 – Splitting star * ''Coscinasterias tenuispina'' (Lamarck 1816) – Blue spiny starfish The following are synonyms of other species: * ''Coscinasterias brucei'' (Koehler, 1908): Synonym of ''Diplasterias brucei'' (Koehler, 1907) * ''Coscinasterias dubia'' H.L. Clark, 1909: Synonym of ''Sclerasterias dubia'' (H.L. Clark, 1909) * ''Coscinasterias euplecta'' Fisher, 1906: Synonym of ''Sclerasterias euplecta'' (Fisher, 1906) * ''Coscinasterias gemmifera'' (Perrier, 1869): Synonym of ''Coscinasterias muricata'' Verrill, 1867 * ''Coscinasterias jehennesi'' (Perrier, 1875): Synonym of ''Coscinasterias calamaria'' (Gray, 1840) * ''Coscinasterias victoriae'' Koehler, 1911: Synonym of ''Diplasterias brucei'' (Koehler, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronaster
''Coronaster'' is a genus of the Asteriidae family of starfish. Species 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 ... lists the following species: * '' Coronaster briareus'' (Verrill, 1882) * '' Coronaster eclipes'' Fisher, 1925 * '' Coronaster halicepus'' Fisher, 1917 * '' Coronaster marchenus'' Ziesenhenne, 1942 * '' Coronaster pauciporis'' Jangoux, 1984 * '' Coronaster reticulatus'' (H.L. Clark, 1916) * '' Coronaster sakuranus'' (Döderlein, 1902) * '' Coronaster volsellatus'' (Sladen, 1889) References Asteriidae Taxa named by Edmond Perrier {{Asteroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryori Hayashi
Ryori was a launching site for sounding rockets in Japan at in Iwate Prefecture. It was operated by Japan Meteorological Agency The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation an ..., in use since April 1970 until March 2001. Notes External links *https://web.archive.org/web/20100131102750/http://astronautix.com/sites/ryori.htm Rocket launch sites Buildings and structures in Iwate Prefecture Japan Meteorological Agency {{rocket-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ailsa McGown Clark
Ailsa McGown Clark (1926-2014) was a British zoologist, who principally studied echinoderms (such as starfishes and sea urchins) and was a specialist on asteroidea. She worked at the Natural History Museum for most of her career. Life Ailsa McGown Clark was born in Hendon. From 1948, Clark was curator of Echinoderms at the British Museum (Natural History). During 1954, she conducted research into ophiurums (brittle stars) at the Allan Hancock Foundation for Scientific Research, at the University of Southern California. It is noted that Ailsa McGown Clark was one of a number of unrelated Clarks who became experts in echinoderms. Libbie Hyman made reference to this 'odd circumstance' in a review of ''Starfishes and their relations'' for the ''Quarterly Review of Biology''. She said of the book itself that it would 'serve admirably to introduce beginners to this important phylum.' On the death of her colleague, Dr. Austin Hobart Clark, she completed his work ''A monograph of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
