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Aspidodiadema Meijerei
''Aspidodiadema meijerei'' is a species of sea urchin of the family Aspidodiadematidae. Its armor is covered with spines. It is placed in the genus Aspidodiadema and lives in the sea. Aspidodiadema meijerei was first scientifically described in 1906 by Döderlein.Kroh, A. (2010). ''Aspidodiadema meijerei'' (Döderlein, 1906). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * Aspidodiadema intermedium * Aspidodiadema jacobyi * Aspidodiadema montanum ''Aspidodiadema montanum'' is a species of sea urchin of the family Aspidodiadematidae. Their armour is covered with spines. It is placed in the genus Aspidodiadema and lives in the sea. Aspidodiadema montanum was first scientifically described i ... References meijerei Animals described in 1906 {{echinoidea-stub ...
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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 the pol ...
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Aspidodiadematidae
The Aspidodiadematidae are a family of sea urchins. Characteristics All the members of the two extant genera, ''Aspidodiadema'' and ''Plesiodiadema'', are found in tropical seas at bathyal and abyssal depths, often on the submarine slopes of islands. The genera ''Culozoma'', ''Eosalenia'', and ''Gymnotiara'' are known only from the fossil record. Study of the larval development of ''Aspidodiadema jacobyi'' suggests that the family should be elevated to ordinal status as a sister clade of the order Diadematoida The Diadematoida are an order of 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 ..., or possibly be regarded as a sister clade of the other families within that order. Genera These genera and species are listed in the World Register of Marine Species: References {{Taxonbar, from=Q338563 ...
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Aspidodiadema
''Aspidodiadema'' is a genus of echinoderms belonging to the family Aspidodiadematidae. The species of this genus are found in the Indo-Pacific and Caribbean. Description The test is small and subglobular with fragile plating which is firmly tessellated. The apical disc is monocyclic. The plates membrane is embedded and does not touch the coronal plates. The ambulacral Ambulacral is a term typically used in the context of anatomical parts of the phylum Echinodermata or class Sea star, Asteroidea and Edrioasteroidea. Echinoderms can have ambulacral parts that include Ossicle (echinoderm), ossicles, plates, spines ... plating is pseudocompound with single large primary tubercle on every third plate which is much enlarged compared to the others. The primary tubercles form an alternate series down the perradius. These traits distinguish this genus from '' Plesiodiadema'' and '' Gymnotiara.'' The primary tubercles are perforated and notched. The secondary tuberculation confined to ...
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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 of ...
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Aspidodiadema Intermedium
''Aspidodiadema intermedium'' is a species of sea urchin of the family Aspidodiadematidae. Their armour is covered with spines. It is placed in the genus Aspidodiadema and lives in the sea. Aspidodiadema intermedium was first scientifically described in 1977 by Shigei.Kroh, A. (2010). ''Aspidodiadema intermedium'' (Shigei, 1977). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at 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 .... References intermedium Animals described in 1977 {{echinoidea-stub ...
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Aspidodiadema Jacobyi
''Aspidodiadema jacobyi'' is a small sea urchin in the family Aspidodiadematidae. It lives in tropical seas at great depths. Aspidodiadema jacobyi was first scientifically described in 1880 by Alexander Emanuel Agassiz, an American scientist. Description ''Aspidodiadema jacobyi'' has a globular hard test or shell protecting the inner organs. The mouth has 10 buccal plates and small rounded buccal notches and is on the oral (bottom) surface which is slightly flattened. The aboral (top) surface has a small coronal ring of tubercles surrounding the anus. The test is composed of 5 radial ambulacral sets of 3 plates, separated by 5 ambulacral grooves. There are rows of pairs of pores between the ambulacral areas through which the tube feet protrude. Every third row of plates is larger than the other 2 and has a zig-zag row of large primary tubercles. This row does not extend quite as far as the other 2 rows of plates which have similar primary tubercles set serially in a straight line ...
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Aspidodiadema Montanum
''Aspidodiadema montanum'' is a species of sea urchin of the family Aspidodiadematidae. Their armour is covered with spines. It is placed in the genus Aspidodiadema and lives in the sea. Aspidodiadema montanum was first scientifically described in 1981 by Mironov.Kroh, A. (2010). ''Aspidodiadema montanum'' (Mironov, 1981). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * '' Aspidodiadema jacobyi'' * '' Aspidodiadema meijerei'' * ''Aspidodiadema nicobaricum ''Aspidodiadema nicobaricum'' is a species of sea urchin of the family Aspidodiadematidae. Their armour is covered with spines. It is placed in the genus Aspidodiadema and lives in the sea. Aspidodiadema nicobaricum was first scientifically descr ...'' References montanum Animals described in 1981 {{echinoidea-stub ...
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