Aeropsis Rostrata
''Aeropsis rostrata'' is a species of sea urchin of the family Aeropsidae. Their armour is covered with spines. It is placed in the genus ''Aeropsis ''Aeropsis'' is a genus of sea urchins in the family Aeropsidae Aeropsidae is a family of echinoderms belonging to the order Spatangoida. It contains one extant genus. There are also eight extinct genera, most of which fall in the subfamily Cor ...'' and lives in the sea. ''Aeropsis rostrata'' was first scientifically described in 1877 by Thomson.Kroh, A. (2010)''Aeropsis rostrata''(Thomson, 1877). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species. References Spatangoida Animals described in 1877 {{echinoidea-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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 t ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aeropsidae
Aeropsidae is a family of echinoderms belonging to the order Spatangoida. It contains one extant genus. There are also eight extinct genera, most of which fall in the subfamily Corasterinae. History Initially, a large number of genera were included on the basis of their apetaloid ambulacra. This, however, resulted in the inclusion of a number of unrelated genera some of which are holasteroid, and others that are spatangoid. Later, Mortensen included just two genera - ''Aceste'' and ''Aeropsis''. The two forms are very different in test architecture. Aceste is now considered to be an apetaloid derivative of ''Proraster'' and is nor believed to be closely related to Aeropsidae. Genera The following genera are recognised: Subfamily Corasterinae Lambert & Thiéry, 1924 * † '' Coraster'' Cotteau, 1887 * † '' Cordastrum'' Nisiyama, 1968 * † '' Cottreaucorys'' Lambert, 1920 * † '' Homoeaster'' Pomel, 1883 * † '' Lambertiaster'' Gauthier, 1892 * † '' Orthaster'' Moskvi ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aeropsis
''Aeropsis'' is a genus of sea urchins in the family Aeropsidae Aeropsidae is a family of echinoderms belonging to the order Spatangoida. It contains one extant genus. There are also eight extinct genera, most of which fall in the subfamily Corasterinae. History Initially, a large number of genera were incl .... Two species are recognized: References Spatangoida Echinoidea genera {{echinoidea-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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 Eur ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |