|
Abatus Cavernosus
''Abatus cavernosus'' is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus ''Abatus'' and lives in the sea. ''Abatus cavernosus'' was first scientifically described in 1845 by Rodolfo Philippi.Kroh, A. (2010)''Abatus cavernosus''(Philippi, 1845). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species. Females brood their young in a brood pouch through the gastrula Gastrulation is the stage in the early embryonic development of most animals, during which the blastula (a single-layered hollow sphere of cells), or in mammals the blastocyst is reorganized into a multilayered structure known as the gastrula. ... stage until they are juveniles. References Spatangoida Animals described in 1845 {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodolfo Amando Philippi
Rodolfo Amando (or Rudolph Amandus) Philippi (14 September 1808 – 23 July 1904) was a German–Chilean paleontologist and zoologist. Philippi contributed primarily to malacology and paleontology. His grandson, Rodulfo Amando Philippi Bañados (1905-1969), was also a zoologist and in order to avoid confusion in zoological nomenclature, the elder is referred to as "Philippi rumwiede to distinguish him from his grandson "Philippi añados. Early life Philippi was born in Charlottenburg, Berlin to Johann Wilhelm Eberhard Philippi, a Prussian government auditor, and his third wife Maria Anna Krumwiede (m. 1806). The father had five children from two earlier marriages and Philippi was the eldest from the third marriage. In 1818, Philippi, his younger brother Bernhard Eunom (1811–1852) and their mother went to Yverdon-les-Bains, Switzerland, where they were educated at the Pestalozzian Institute founded by Johann Heinrich Pestalozzi (1746–1827). The teaching included the use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of sea urchins are round and spiny, ranging in diameter from . Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines. Although algae are the primary diet, sea urchins also eat slow-moving (sessile) animals. Predators that eat sea urchins include a wide variety of fish, starfish, crabs, marine mammals. Sea urchins are also used as food especially in Japan. Adult sea urchins have fivefold symmetry, but their pluteus larvae feature bilateral (mirror) symmetry, indicating that the sea urchin belongs to the Bilateria group of animal phyla, which also comprises the chordates and the arthropods, the annelids and the molluscs, and are found in every ocean and in every climate, from the tropics to the pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizasteridae
Schizasteridae is a family of echinoderms belonging to the order Spatangoida. Genera: * ''Abatus'' Troschel, 1851 * '' Aceste'' Thomson, 1877 * ''Agassizia'' Agassiz & Desor, 1847 * '' Aguayoaster'' Sanchez Roig, 1952 * '' Aliaster'' Valdinucci, 1975 * '' Amphipneustes'' Koehler, 1900 * '' Brachybrissus'' Pomel, 1883 * '' Brachysternaster'' Larrain, 1985 * '' Brisaster'' Gray, 1855 * '' Calzadaster'' * '' Caribbaster'' Kier, 1984 * '' Cestobrissus'' Lambert, 1912 * '' Diploporaster'' Mortensen, 1950 * '' Dipneustes'' Arnaud, 1891 * '' Gregoryaster'' Lambert, 1907 * '' Hemifaorina'' Jeannet & Martin, 1937 * '' Hypselaster'' H.L.Clark, 1917 * '' Kina Henderson'' , 1975 * '' Lambertona'' Sanchez-Roig, 1953 * '' Linthia'' Desor, 1853 * '' Lutetiaster'' * '' Moira'' A.Agassiz, 1872 * '' Moiropsis'' A.Agassiz, 1881 * '' Neoproraster'' * '' Opissaster'' Pomel, 1883 * ''Ova , abbreviated as OVA and sometimes as OAV (original animation video), are Japanese animated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abatus
''Abatus'' is a genus of sea urchins belonging to the family Schizasteridae. The species of this genus are found in Antarctica and southernmost America. Species: *'' Abatus agassizii'' *'' Abatus beatriceae'' *'' Abatus cavernosus'' *'' Abatus cordatus'' *'' Abatus curvidens'' *'' Abatus ingens'' *'' Abatus kieri'' *'' Abatus koehleri'' *'' Abatus nimrodi'' *'' Abatus philippii'' *'' Abatus shackletoni'' References {{Taxonbar, from=Q18581408 Echinoderms of South America Schizasteridae Echinoidea genera ... [...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] |
Gastrula
Gastrulation is the stage in the early embryonic development of most animals, during which the blastula (a single-layered hollow sphere of Cell (biology), cells), or in mammals the blastocyst is reorganized into a multilayered structure known as the gastrula. Before gastrulation, the embryo is a continuous Epithelium, epithelial sheet of cells; by the end of gastrulation, the embryo has begun Cellular differentiation, differentiation to establish distinct cell lineages, set up the basic axes of the body (e.g. Anatomical terms of location#Dorsal and ventral, dorsal-ventral, Anatomical terms of location#Anterior and posterior, anterior-posterior), and internalized one or more cell types including the prospective Gastrointestinal tract, gut. In Triploblasty, triploblastic organisms, the gastrula is trilaminar (three-layered). These three germ layers are the ectoderm (outer layer), mesoderm (middle layer), and endoderm (inner layer).Mundlos 2009p. 422/ref>McGeady, 2004: p. 34 In Diplo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spatangoida
The heart urchins or Spatangoida are an order of sea urchins. Their body is a somewhat elongated oval in form, and is distinguished by the mouth being placed towards one end of the animal, and the anus towards the other. As a result, heart urchins, unlike most other sea urchins, are bilaterally symmetrical, and have a distinct anterior surface. The presence and position of the mouth and anus typically give members of this group the distinct "heart" shape from which they get their name. Heart urchins have no feeding lantern, and often have petaloids sunk into grooves. They are a relatively diverse order, with a number of varying species. Taxonomy According to World Register of Marine Species : * suborder Brissidina Stockley, Smith, Littlewood, Lessios & MacKenzie-Dodds, 2005 ** family Asterostomatidae Pictet, 1857 ** family Brissidae Gray, 1855 ** family Palaeotropidae Lambert, 1896 ** super-family Spatangidea Fischer, 1966 *** family Eupatagidae Lambert, 1905 *** family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
