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Brissus Unicolor
''Brissus unicolor'' is a species of sea urchins of the family Brissidae. Their armour is covered with spines. ''Brissus unicolor'' was first scientifically described in 1778 by Nathanael Gottfried Leske.Kroh, A. (2010). ''Brissus unicolor'' (Leske, 1778). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. Habitat The urchin buries itself in the coarse sand at depths of 6 to 250 meters (which is why it is rarely observed alive). In the Mediterranean Sea they can be sometimes found living buried in the sediment near the tapeweed, ''Posidonia oceanica ''Posidonia oceanica'', commonly known as Neptune grass or Mediterranean tapeweed, is a seagrass species that is endemic to the Mediterranean Sea. It forms large underwater meadows that are an important part of the ecosystem. The fruit is free f ...''. Description When alive, the urchin's whole body is covered in brown spines. After the urchin dies, its shell (also called a "test") has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathanael Gottfried Leske
Nathanael Gottfried Leske (22 October 1751 in Muskau – 25 November 1786 in Marburg) was a German natural scientist and geologist. After his studies at ''Bergakademie'' of Freiberg in Saxony and the ''Franckeschen Stiftungen'' in Halle, Leske became a special professor of natural history at the University of Leipzig in 1775. From 1777 to 1786 he taught economics at this university, and in 1786 he was called to the chair of financial science and economics at the University of Marburg. However, he had a fatal accident on his way to Marburg. Throughout his life Leske corresponded with his teacher and close friend of Abraham Gottlob Werner, famous geologist and mineralogist at Weimar. He also edited the ''Leipziger Magazin zur Naturkunde, Mathematik und Oekonomie'' (1781-1789) with [...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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brissidae
Brissidae is a family of echinoderms belonging to the order 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 urc .... Genera Genera: * '' Anabrissus'' Mortensen, 1950 * '' Anametalia'' Mortensen, 1950 * '' Brissalius'' Coppard, 2008 * '' Brissopsis'' L. Agassiz, 1840 * '' Brissus'' Gray, 1825 References Spatangoida Echinoderm families {{echinoidea-stub ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Posidonia Oceanica
''Posidonia oceanica'', commonly known as Neptune grass or Mediterranean tapeweed, is a seagrass species that is endemic to the Mediterranean Sea. It forms large underwater meadows that are an important part of the ecosystem. The fruit is free floating and known in Italy as "the olive of the sea" (''l'oliva di mare''). Balls of fibrous material from its foliage, known as ''egagropili'' or ''Neptune balls'', wash up to nearby shorelines. The Posidonia has a very high carbon absorption capacity, being able to soak up 15 times more carbon dioxide every year than a similar sized piece of the Amazon rainforest. Morphology Posidonia oceanica has roots (which mainly serve to anchor the plant to the substrate), rhizome and tapeform leaves. The rhizomes, up to 1 cm thick, grow both horizontally (plagiotropic rhizomes), and vertically (orthotropic rhizomes). The former, thanks to the presence at the bottom of lignited roots up to 15 cm long, anchor the plant to the substrate. The lat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brissus Unicolor Tests From Greece
''Brissus'' is a genus of echinoderms belonging to the family Brissidae. The genus has cosmopolitan distribution. Species: *''Brissus agassizii'' *'' Brissus bridgeboronensis'' *'' Brissus camagueyensis'' *'' Brissus caobaense'' *''Brissus duperieri'' *''Brissus durhami'' *''Brissus eximius'' *''Brissus expansus'' *''Brissus fosteri'' *'' Brissus gigas'' *''Brissus glenni'' *''Brissus greifatensis'' *''Brissus inaequalis'' *''Brissus kewi'' *''Brissus lasti'' *''Brissus latecarinatus'' *''Brissus latidunensis'' *''Brissus meridionalis'' *''Brissus miocaenicus'' *''Brissus obesus'' *''Brissus rana'' *''Brissus sagrae'' *''Brissus shaimaae'' *''Brissus unicolor ''Brissus unicolor'' is a species of sea urchins of the family Brissidae. Their armour is covered with spines. ''Brissus unicolor'' was first scientifically described in 1778 by Nathanael Gottfried Leske.Kroh, A. (2010). ''Brissus unicolor'' (Les ...'' References {{Taxonbar, from=Q3467506 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brissus
''Brissus'' is a genus of echinoderms belonging to the family Brissidae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species: *'' Brissus agassizii'' *'' Brissus bridgeboronensis'' *'' Brissus camagueyensis'' *'' Brissus caobaense'' *'' Brissus duperieri'' *'' Brissus durhami'' *'' Brissus eximius'' *'' Brissus expansus'' *'' Brissus fosteri'' *'' Brissus gigas'' *'' Brissus glenni'' *'' Brissus greifatensis'' *'' Brissus inaequalis'' *'' Brissus kewi'' *'' Brissus lasti'' *'' Brissus latecarinatus'' *'' Brissus latidunensis'' *'' Brissus meridionalis'' *'' Brissus miocaenicus'' *'' Brissus obesus'' *'' Brissus rana'' *'' Brissus sagrae'' *'' Brissus shaimaae'' *'' Brissus unicolor'' References {{Taxonb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animals Described In 1778
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have 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 bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinoderms a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
