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Leucaltidae
Leucaltidae is a family of calcareous sponges in the order Clathrinida The Clathrinida are an order of calcareous sponges found in marine environments. These sponges have an asconoid structure and lack a true dermal membrane or cortex. The spongocoel A spongocoel (), also called paragaster (or paragastric cavity) .... References Clathrinida Taxa named by Arthur Dendy {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascandra Pinus
''Ascandra'' is a genus of calcareous sponges of the family Leucaltidae and are found in oceans around the world. Species As of 2019, 15 valid species of ''Ascandra'' are recognized: * ''Ascandra ascandroides'' (Borojevic, 1971) * ''Ascandra atlantica'' (Thacker, 1908) * '' Ascandra biscayae'' (Borojevic & Boury-Esnault, 1987) * ''Ascandra brandtae'' (Rapp, Göcke, Tendal & Janussen, 2013) * '' Ascandra contorta'' (Bowerbank, 1866) * ''Ascandra corallicola'' (Rapp, 2006) * ''Ascandra crewsi'' Van Soest & De Voogd, 2015 * ''Ascandra densa'' Haeckel, 1872 * ''Ascandra falcata'' Haeckel, 1872 * ''Ascandra izuensis'' (Tanita, 1942) * ''Ascandra kakaban'' Van Soest & De Voogd, 2015 * ''Ascandra loculosa'' (Dendy, 1891) * ''Ascandra minchini'' Borojevic, 1966 * ''Ascandra sertularia'' Haeckel, 1872 * ''Ascandra spalatensis ''Ascandra'' is a genus of calcareous sponges of the family Leucaltidae and are found in oceans around the world. Species As of 2019, 15 valid species of ''Asca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascandra
''Ascandra'' is a genus of calcareous sponges of the family Leucaltidae and are found in oceans around the world. Species As of 2019, 15 valid species of ''Ascandra'' are recognized: * ''Ascandra ascandroides'' (Borojevic, 1971) * ''Ascandra atlantica'' (Thacker, 1908) * '' Ascandra biscayae'' (Borojevic & Boury-Esnault, 1987) * ''Ascandra brandtae'' (Rapp, Göcke, Tendal & Janussen, 2013) * ''Ascandra contorta'' (Bowerbank, 1866) * ''Ascandra corallicola ''Ascandra corallicola'' is a species of calcareous sponge in the family Leucaltidae. It is known from the coastal waters in northeast Atlantic at depths between , and on the Reykjanes Ridge as deep as . It occurs solely on dead parts of the cor ...'' (Rapp, 2006) * '' Ascandra crewsi'' Van Soest & De Voogd, 2015 * '' Ascandra densa'' Haeckel, 1872 * '' Ascandra falcata'' Haeckel, 1872 * '' Ascandra izuensis'' (Tanita, 1942) * '' Ascandra kakaban'' Van Soest & De Voogd, 2015 * '' Ascandra loculosa'' (Dendy, 1891) * '' Ascand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteropegma
''Leucaltis'' is a genus of sponges belonging to the family Leucaltidae. The genus has almost 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: *'' Leucaltis arabica'' *'' Leucaltis clathria'' *'' Leucaltis cucumis'' *'' Leucaltis impura'' *'' Leucaltis mauritiana'' *'' Leucaltis nodusgordii'' *'' Leucaltis pandora'' *'' Leucaltis perimina'' *'' Leucaltis pura'' *'' Leucaltis solida'' *'' Leucaltis tenuis'' References {{Taxonbar, from=Q6534691 Clathrinida Sponge genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucettusa
''Leucettusa'' is a genus of sponges belonging to the family Leucaltidae. The species of this genus are mostly known from the Arctic and Antarctic, New Zealand and Southwest Australia Southwest Australia is a biogeographic region in Western Australia. It includes the Mediterranean-climate area of southwestern Australia, which is home to a diverse and distinctive flora and fauna. The region is also known as the Southwest Aus .... Description Species have a simple tubular body with a large atrium, and choanocyte chambers which are either elongated, spherical or both. Species The following species are recognised: *'' Leucettusa clathria'' *'' Leucettusa corticata'' *'' Leucettusa dictyogaster'' *'' Leucettusa haeckeliana'' *'' Leucettusa imperfecta'' *'' Leucettusa lancifera'' *'' Leucettusa mariae'' *'' Leucettusa nuda'' *'' Leucettusa pyriformis'' *'' Leucettusa sambucus'' *'' Leucettusa simplicissima'' *'' Leucettusa soyo'' *'' Leucettusa tubulosa'' *'' Leu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leuclathrina
''Leuclathrina'' is a genus of sponges belonging to the family Leucaltidae. Species are found in the northeast Atlantic and in the Indian Ocean. Description These sponges are composed of an external wall sustained by large radiate spicules. There is no choanosomal A choanosome is an inner region of a sponge, supported on the choanoskeleton, the stucture that contains the choanocyte Choanocytes (also known as "collar cells") are cells that line the interior of asconoid, syconoid and leuconoid body types of ... skeleton. The aquiferous system is composed of a mass of flagellated chambers and water canals. Species The following species are recognised: *'' Leuclathrina asconoides'' *'' Leuclathrina translucida'' References {{Taxonbar, from=Q42283771 Clathrinida Sponge genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clathrinida
The Clathrinida are an order of calcareous sponges found in marine environments. These sponges have an asconoid structure and lack a true dermal membrane or cortex. The spongocoel A spongocoel (), also called paragaster (or paragastric cavity), is the large, central cavity of sponges. Water enters the spongocoel through hundreds of tiny pores ( ostia) and exits through the larger opening (osculum). Depending on the body pla ... is lined with choanocytes. References Sponge orders {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Dendy
Arthur Dendy (20 January 1865, in Manchester – 24 March 1925, in London) was an English zoologist known for his work on marine sponges and the terrestrial invertebrates of Victoria, Australia, notably including the "living fossil" ''Peripatus''. He was in turn professor of zoology in New Zealand, in South Africa and finally at King's College London. He was a Fellow of the Royal Society. Family life Dendy's parents were John Dendy, a silk fabric maker of Manchester, and Sarah Beard, daughter of John Relly Beard. His sisters included Mary Dendy and Helen Bosanquet. He married Ada Margaret Courtauld on 5 December 1888. They had four children, three daughters—including the artist Vera Ellen Poole (1890–1965)—and one son. Career He was educated in zoology at Owens College, Manchester, gaining his M.Sc. in 1887 and his D.Sc. in 1891. He worked on part of the report of the Challenger expedition (1872–1876), describing monaxonid sponges. In 1888 he moved to the Univers ... [...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] |
Calcareous Sponges
The calcareous sponges of class Calcarea are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made of calcium carbonate in the form of calcite or aragonite. While the spicules in most species have three points, in some species they have either two or four points. Biology All sponges in this class are strictly marine, and, while they are distributed worldwide, most are found in shallow tropical waters. Like nearly all other sponges, they are sedentary filter feeders. All three sponge body plans are represented within class Calcarea : asconoid, syconoid, and leuconoid. Typically, calcareous sponges are small, measuring less than in height, and drab in colour. However, a few brightly coloured species are also known. Calcareous sponges vary from radially symmetrical vase-shaped body types to colonies made up of a meshwork of thin tubes, or irregular massive forms. The skeleton has either a mesh or honeycomb structure. Classifica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
