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Arachnoides Tenuis
''Arachnoides tenuis'' 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 tenuis was first scientifically described in 1938 by Hubert Lyman Clark.Kroh, A. (2010). ''Arachnoides tenuis'' (Hubert Lyman Clark, 1938). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * Aporocidaris usarpi * Arachnoides placenta * Araeolampas atlantica ''Araeolampas atlantica'' is a species of sea urchin of the family Loveniidae Loveniidae is a family of heart urchins in the order Spatangoida. Description and characteristics These sea urchins are called "heart urchins" due to their specif ... References Animals described in 1938 Clypeasteridae Taxa named by Hubert Lyman Clark {{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] |
Clypeasteroida
Sand dollars (also known as a sea cookie or snapper biscuit in New Zealand, or pansy shell in South Africa) are species of flat, burrowing sea urchins belonging to the order Clypeasteroida. Some species within the order, not quite as flat, are known as '' sea biscuits''. Sand dollars can also be called "sand cakes" or "cake urchins". Anatomy Sand dollars are small in size, averaging from three to four inches. As with all members of the order Clypeasteroida, they possess a rigid skeleton called a test. The test consists of calcium carbonate plates arranged in a fivefold symmetric pattern. The test of certain species of sand dollar have slits called lunules that can help the animal stay embedded in the sand to stop it from being swept away by an ocean wave. In living individuals, the test is covered by a skin of velvet-textured spines which are covered with very small hairs (cilia). Coordinated movements of the spines enable sand dollars to move across the seabed. The velvety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clypeasteridae
Clypeasteridae is a family of sea urchins in the order Clypeasteroida. This family was first scientifically described in 1835 by the Swiss-American biologist Louis Agassiz. Genera The World Register of Marine Species list the following genera as being in this family:- *'' Ammotrophus'' H.L. Clark, 1928 *''Arachnoides'' Leske, 1778 *''Clypeaster ''Clypeaster'', common name "cake urchins" or "sea biscuits", is a genus of echinoderms belonging to the family Clypeasteridae. Etymology The genus name ''Clypeaster'' is derived from the Latin “clypeus” (meaning ''round shield'') and “a ...'' Lamarck, 1801 *'' Fellaster'' Durham, 1955 *'' Monostychia'' Laube, 1869 References Clypeasteroida Echinoderm families {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arachnoides
''Arachnoides'' is a genus of sea urchin within the family Clypeasteridae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex. If you are looking for a ''fern'' genus, its name is Arachniodes. Species The World Register of Marine Species list the following species as being in this genus:- * ''Arachnoides placenta'' ( Linnaeus, 1758) Australia to Philippines * ''Arachnoides tenuis'' H. L. Clark, 1938 Western Australia ''Arachnoides zelandiae'' Gray, 1855 New Zealand: Synonym of ''Fellaster zelandiae ''Fellaster zelandiae'', which is also called a cake urchin, or the snapper biscuit, is an echinoderm of the family Arachnoididae, endemic to New Zealand. The maximum width of this type of echinoderm An echinoderm () is any member of the ...'' (Gray, 1855) References Natural History Museum Clypeasteridae Echinoidea genera Echinoderms of Oceania Echinoderms of Asia {{echinoidea-stub ... [...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] |
Hubert Lyman Clark
Hubert Lyman Clark (January 9, 1870 – July 31, 1947) was an American zoologist. The son of Professor William Smith Clark, he was born at Amherst, Massachusetts, and educated at Amherst College and Johns Hopkins University. From 1899 to 1905 he was professor of biology at Olivet College. Beginning in 1905, Clark worked as assistant in invertebrate zoology at the Museum of Comparative Zoology at Harvard University. He was curator of echinoderms from 1910 to 1927, and curator of marine invertebrates and associate professor of zoology beginning 1927. He was awarded the Clarke Medal by the Royal Society of New South Wales in 1947. Work He carried on scientific investigations in Jamaica, Bermuda and Australia, where he collected in 1913, 1929 and 1932, and published many papers dealing with birds, snakes, echinoderms and flowers. His publications include: *''The Birds of Amherst and Vicinity'' (1887) *''The Echinoderms of Porto Rico'' (1901) *''A New Ophiuran from the West Indi ... [...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 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] |
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] |
Araeolampas Atlantica
''Araeolampas atlantica'' is a species of sea urchin of the family Loveniidae Loveniidae is a family of heart urchins in the order Spatangoida. Description and characteristics These sea urchins are called "heart urchins" due to their specific shape, looking like a heart when seen from below (more or less depending on th .... Their armour is covered with spines. It is placed in the genus '' Arachnoides'' and lives in the sea. ''Araeolampas atlantica'' was first scientifically described in 1974 by K. Serafy.Kroh, A. (2010). ''Araeolampas atlantica'' (Serafy, 1974). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. References Spatangoida Animals described in 1974 {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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