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Brisingida
The Brisingids are deep-sea-dwelling starfish in the order Brisingida. Description These starfish have between 6 to 18 long, attenuated arms which they use for suspension feeding. Other characteristics include a single series of marginals, a fused ring of disc plates, the lack of actinal plates, a spool-like ambulacral column, reduced abactinal plates, and crossed pedicellariae. They are 40 times the size of disk radius and have 7-20 flexible spiny arms. Distribution Brisingida occur in a number of deep-sea locations, particularly in the Caribbean and New Zealand. This type of species are found of varying size especially in the eastern Pacific Ocean at a depth of 1,820–2,418 m. Taxonomy The Brisingida contain two families, with 18 genera: *Family Brisingidae, G.O. Sars, 1875 **Genus ''Astrolirus'', Fisher, 1917 — (two species) **Genus '' Astrostephane'', Fisher, 1917 — (two species) **Genus ''Brisinga'' Asbjørnsen, 1856 (synonym: ''Craterobrisinga'', Fisher, 1916) — ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freyellidae
The Freyellidae are a family of deep-sea-dwelling starfish. It is one of two families in the order Brisingida. The majority of species in this family are found in Antarctic waters and near Australia. Other species have been found near New Zealand and the United States. Taxonomy The starfish ''Brisinga endecacnemos'' was discovered in deep water off Norway in 1856, followed by another abyssal species, ''Brisinga coronata'', now '' Hymenodiscus coronata''. A new order, Brisingida, was erected to accommodate these, consisting of a single family, Brisingidae. Since then dozens of new species have been described from deep water habitats and in 1986, the American zoologist Maureen Downey split the family on morphological and behavioural grounds, creating the new family Freyellidae. Characteristics Members of this family have a small, Ophiurida-like disc, clearly demarcated from the arms, which number more than five. The disc is approximately circular with a rim of fused plates wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starfish
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropical zones to frigid, polar regions. They are found from the intertidal zone down to abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brisingidae
The Brisingidae are a family of starfish found only in the deep sea. They inhabit both the Atlantic and Pacific Oceans at abyssal depths, and also occur in the Southern Ocean and around Antarctica at slightly shallower depths. The family was named after Brísingamen, a necklace belonging to Freya from Norse mythology that was stolen by Loki and hidden in the sea. Characteristics Members of this family have a small, Ophiurida-like disc, clearly demarcated from the arms, which number more than five. The disc is approximately circular with a rim of fused plates which gives rigidity. The madreporite is near the margin of the disc. The arms are long and tapering with the ratio of the arm length to the disc radius being greater than 6/1. There is an acute angle between them and they can be shed at the base where they are separated from the disc by a deep groove. After a narrow cylindrical portion, the part of the arms closest to the disc accommodates the gonadal tissues and wid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrolirus
''Astrolirus'' is a genus of echinoderms belonging to the family Brisingidae. They are found in benthic habitats in the Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contin .... There are two known species: * '' Astrolirus panamensis'' (Ludwig, 1905) * '' Astrolirus patricki'' Zhang, Zhou, Xiao & Wang, 2020 References {{Taxonbar, from=Q18519005 Brisingida Asteroidea genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freyella
''Freyella'' is a genus of deep-sea-dwelling starfish in the order Brisingida. Species There are currently 29 recognized 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 s ... in this genus: - *'' Freyella attenuata'' Sladen, 1889 *'' Freyella breviispina'' (H.L. Clark, 1920) *'' Freyella dimorpha'' Sladen, 1889 *'' Freyella drygalskii'' (Döderlein, 1928) *'' Freyella echinata'' Sladen, 1889 *'' Freyella elegans'' (Verrill, 1884) *'' Freyella felleyra'' McKnight, 2006 *'' Freyella flabellispina'' Korovchinsky & Galkin, 1984 *'' Freyella formosa'' Korovchinsky, 1976 *'' Freyella fragilissima'' Sladen, 1889 *'' Freyella giardi'' Koehler, 1907 *'' Freyella heroina'' Sladen, 1889 *'' Freyella hexactis'' Baranova, 1957 *'' Freyella indica'' Koehler, 1909 *'' Freyella insignis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brisinga
Brisinga is a genus of starfish in the family Brisingidae. The species in this genus are primarily found in deep sea habitats. Species *''Brisinga'' Asbjørnsen, 1856 **'' Brisinga alberti'' Fisher, 1907 ** '' Brisinga analoga'' (Fisher, 1919) ** '' Brisinga andamanica'' Wood-Mason & Alcock, 1891 ** '' Brisinga bengalensis'' Wood-Mason & Alcock, 1891 ** '' Brisinga chathamica'' McKnight, 1973 ** '' Brisinga costata'' Verrill, 1884 ** '' Brisinga cricophora'' Sladen, 1889 ** '' Brisinga distincta'' Sladen, 1889 ** ''Brisinga endecacnemos ''Brisinga endecacnemos'' is a species of starfish found in deep waters off Norway, Rockall Trough off Ireland, Cape Verde, to the Mid-Atlantic Ridge. The species is described as being a "brilliant red", with a body measuring between 2.8 cm ...'' Asbjørnsen, 1856 ** '' Brisinga eucoryne'' Fisher, 1916 ** '' Brisinga evermanni'' Fisher, 1906 ** '' Brisinga gunnii'' Alcock, 1893 ** '' Brisinga hirsuta'' Perrier, 1894 ** '' Brisinga insularu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novodinia
''Novodinia'' is a genus of echinoderms belonging to the family Brisingidae The Brisingidae are a family of starfish found only in the deep sea. They inhabit both the Atlantic and Pacific Oceans at abyssal depths, and also occur in the Southern Ocean and around Antarctica at slightly shallower depths. The family was .... The genus has almost cosmopolitan distribution. Species: *'' Novodinia americana'' *'' Novodinia antillensis'' *'' Novodinia austini'' *'' Novodinia australis'' *'' Novodinia clarki'' *'' Novodinia homonyma'' *'' Novodinia magister'' *'' Novodinia novaezelandiae'' *'' Novodinia pacifica'' *'' Novodinia pandina'' *'' Novodinia penichra'' *'' Novodinia radiata'' *'' Novodinia semicoronata'' References Brisingida Asteroidea genera {{asteroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maureen Downey
Maureen Elizabeth Downey (May 1, 1921 – May 14, 2000) was an American zoologist who worked for three decades at the Smithsonian National Museum of Natural History. Known as "The Starfish Lady," she was an authority on sea stars and other echinoderms, co-founding the International Echinoderm Conference in 1972. Among her discoveries is ''Midgardia xandaros'', the world's largest starfish. Early life and education Maureen Downey was born in Washington, D.C., in 1921. She had an early fascination with animal biology, bringing insect specimens to be identified at the National Museum of Natural History. She studied at George Washington University, then Duke University and the University of Washington's Friday Harbor Laboratories. Career Downey was an international authority on echinoderms, particularly sea stars, earning her the nickname "The Starfish Lady." While she occasionally studied other groups, such as brittle stars, her work primarily focused on sea stars. Her work w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Kenrick Fisher
Walter Kenrick Fisher (February 1, 1878 – November 2, 1953) was an American zoologist, evolutionary biologist, illustrator and painter. He taught in Stanford University before eventually becoming Emeritus Professor in Zoology until his retirement in 1943. Fisher was the son of ornithologist Albert Kenrick Fisher. Early life Walter K. Fisher was born on February 1, 1878 in Ossining, New York. His father was Albert Kenrick Fisher and his mother was Alwilda Fisher (''née'' Merritt). As a boy, Fisher explored the countryside around his home in the Hudson Valley, and when he was older conducted similar explorations around Washington, D. C. following his family's move to the capital. During these ventures he collected birds and plants, and he drew sketches of the skulls he collected and of the landscapes. He was a talented artist and was initially tempted to follow his artistic side, and he continued to paint and draw throughout his life, but he decided that he wanted to follow a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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