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Aporocidaris Usarpi
''Aporocidaris usarpi'' is a species of sea urchin of the family Ctenocidaridae. Their armour is covered with spines. It is placed in the genus Aporocidaris and lives in the sea. Aporocidaris usarpi was first scientifically described in 2000 by Mooi, David, Fell & Choné.Kroh, A. (2010). ''Aporocidaris usarpi'' (Mooi, David, Fell & Choné, 2000). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * Aporocidaris incerta * Aporocidaris milleri ''Aporocidaris milleri'' is a species of sea urchin of the family Ctenocidaridae. Their armour is covered with spines. It is placed in the genus Aporocidaris and lives in the sea. Aporocidaris milleri was first scientifically described in 1898 by ... * Arachnoides placenta References Ctenocidaridae Animals described in 2000 {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinodermata
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. Geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoidea
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 polar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cidaroida
Cidaroida is an order of primitive sea urchins, the only living order of the subclass Perischoechinoidea. All other orders of this subclass, which were even more primitive than the living forms, became extinct during the Mesozoic. Description Their primary spines are much more widely separated than in other sea urchins, and they have no buccal slits. Other primitive features include relatively simple plates in the test, and the ambulacral plates continuing as a series across the membrane that surrounds the mouth. Families According to World Register of Marine Species: * family Anisocidaridae Vadet, 1999 † * super-family Cidaridea Gray, 1825 ** family Cidaridae Gray, 1825 ** family Ctenocidaridae Mortensen, 1928a ** family Paurocidaridae Vadet, 1999a † * family Diplocidaridae Gregory, 1900 † * family Heterocidaridae Mortensen, 1934 † * super-family Histocidaroidea Lambert, 1900 ** family Histocidaridae Lambert, 1900 ** family Psychocidaridae Ikeda, 1936 * famil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenocidaridae
Ctenocidaridae is a family of echinoderms belonging to the order Cidaroida. Genera: * '' Aporocidaris'' Agassiz & Clark, 1907 * '' Ctenocidaris'' Mortensen, 1910 * '' Homalocidaris'' Mortensen, 1928 * ''Notocidaris ''Notocidaris'' is a genus of echinoderms An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dolla ...'' Mortensen, 1909 * '' Rhynchocidaris'' Mortensen, 1909 References Cidaroida Echinoderm families {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aporocidaris
''Aporocidaris'' is a genus of sea urchins in the family Ctenocidaridae. Several species are found in deep water in circum-Antarctic locations. Characteristics The test is rather compressed, with a flat base and thin fragile plates, and the apical system is conspicuously domed. The primary spines are long and very slender and the secondary spines are cylindrical and erect. Species The following species are recognised by the World Register of Marine Species: *''Aporocidaris antarctica'' Mortensen, 1909 *''Aporocidaris eltaniana'' Mooi, David, Fell & Choné, 2000 *''Aporocidaris fragilis'' Agassiz & Clark, 1907 *''Aporocidaris incerta'' (Koehler, 1902) *''Aporocidaris milleri'' (Agassiz, 1898) *''Aporocidaris usarpi ''Aporocidaris usarpi'' is a species of sea urchin of the family Ctenocidaridae. Their armour is covered with spines. It is placed in the genus Aporocidaris and lives in the sea. Aporocidaris usarpi was first scientifically described in 2000 by M ...'' Mooi, David, ... [...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] |
Aporocidaris
''Aporocidaris'' is a genus of sea urchins in the family Ctenocidaridae. Several species are found in deep water in circum-Antarctic locations. Characteristics The test is rather compressed, with a flat base and thin fragile plates, and the apical system is conspicuously domed. The primary spines are long and very slender and the secondary spines are cylindrical and erect. Species The following species are recognised by the World Register of Marine Species: *'' Aporocidaris antarctica'' Mortensen, 1909 *'' Aporocidaris eltaniana'' Mooi, David, Fell & Choné, 2000 *'' Aporocidaris fragilis'' Agassiz & Clark, 1907 *'' Aporocidaris incerta'' (Koehler, 1902) *'' Aporocidaris milleri'' (Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he rec ..., 1898) *'' Aporocidaris usarpi'' Mooi, D ... [...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] |
Aporocidaris Incerta
''Aporocidaris incerta'' is a species of sea urchin of the family Ctenocidaridae. It is placed in the genus Aporocidaris and lives in the deep sea. ''Aporocidaris incerta'' was first scientifically described in 1902 by Koehler.Kroh, A. (2010). ''Aporocidaris incerta'' (Koehler, 1902). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. This species lives around the Antarctic continent at depths down to about . Description ''Aporocidaris incerta'' has a compressed test, the height of which is less than half its diameter, which is a maximum of . The primary spines are as long as the test is wide. When preserved, this species is dark brown. See also * Aporocidaris eltaniana * Aporocidaris fragilis ''Aporocidaris fragilis'' is a species of sea urchin of the family Ctenocidaridae. It is well-armoured with spines. It is placed in the genus Aporocidaris and lives in the sea. ''Aporocidaris fragilis'' was first scientifically descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aporocidaris Milleri
''Aporocidaris milleri'' is a species of sea urchin of the family Ctenocidaridae. Their armour is covered with spines. It is placed in the genus Aporocidaris and lives in the sea. Aporocidaris milleri was first scientifically described in 1898 by Alexander Emanuel Agassiz.Kroh, A. (2010). ''Aporocidaris milleri'' (Alexander Emanuel Agassiz, 1898). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * Aporocidaris fragilis * Aporocidaris incerta ''Aporocidaris incerta'' is a species of sea urchin of the family Ctenocidaridae. It is placed in the genus Aporocidaris and lives in the deep sea. ''Aporocidaris incerta'' was first scientifically described in 1902 by Koehler.Kroh, A. (2010). ... * Aporocidaris usarpi References Ctenocidaridae Animals described in 1898 {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arachnoides Placenta
''Arachnoides placenta'' is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides placenta was first scientifically described in 1758 by Carl Linnaeus.Kroh, A. (2010). ''Arachnoides placenta'' ( Linnaeus, 1758). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * Aporocidaris milleri * Aporocidaris usarpi ''Aporocidaris usarpi'' is a species of sea urchin of the family Ctenocidaridae. Their armour is covered with spines. It is placed in the genus Aporocidaris and lives in the sea. Aporocidaris usarpi was first scientifically described in 2000 by M ... * Arachnoides tenuis References Clypeasteridae Animals described in 1758 Taxa named by Carl Linnaeus {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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