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Dragmacidon Lunaecharta
''Dragmacidon lunaecharta'', also known as the red ball sponge or red boring sponge, is a species of sea sponge found in the western Atlantic Ocean. It feeds on plankton. These sponges do not attach themselves to rocks or the sea floor but drift in water currents. Its main predators are seaslugs. It has been kept in home aquariums. Taxonomy It was first described in 1886 by Stuart Oliver Ridley and 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'' ... as ''Axinella lunaecharta,'' but in 1887, in their final report, they transferred it to the genus, ''Pseudaxinella.'' In 1917, E.F. Hallman revised some genera in the family, Axinellidae, and transferred it to the genus, '' Dragmacidon''. References External links Plate XXXVII ''Axinella lunaecharta'' Axinellida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stuart Oliver Ridley
Stuart Oliver Ridley (1853–1935) was an English cleric and zoologist. Early life He was born in 1853, the son of the Rev. Oliver Matthew Ridley and his first wife Laura Pole Stuart (died 1858), daughter of Sir William Stuart; Henry Nicholas Ridley was a younger brother. For the first years of his life his father was rector of West Harling in Norfolk, moving to Cobham, Kent in 1860. He was educated at Haileybury College.Edward J. Salisbury, ''Henry Nicholas Ridley. 1855-1956'', Biographical Memoirs of Fellows of the Royal Society Vol. 3 (Nov., 1957), pp. 141-159, at p. 142. Published by: Royal Society Ridley matriculated at Magdalen College, Oxford in 1872. He moved in 1873 to Exeter College, where he graduated B.A. in 1875 (1st class in Natural Sciences), M.A. in 1881. He also studied under Ernst Haeckel. He taught at Friars School, Bangor, and worked in 1878 at the British Museum as an assistant. Clerical career In 1887 Ridley was ordained deacon, and in 1888 priest at Carli ... [...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 Univer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Sponge
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the last common ancestor of all animals, making them the sister group of all other animals. Etymology The term ''sponge'' derives from the Ancient Greek word ( 'sponge'). Overview Sponges are similar to other animals in that they are multicellular, he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plankton
Plankton are the diverse collection of organisms found in Hydrosphere, water (or atmosphere, air) that are unable to propel themselves against a Ocean current, current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales. Marine plankton include bacteria, archaea, algae, protozoa and drifting or floating animals that inhabit the saltwater of oceans and the brackish waters of estuaries. Freshwater plankton are similar to marine plankton, but are found in the freshwaters of lakes and rivers. Plankton are usually thought of as inhabiting water, but there are also airborne versions, the aeroplankton, that live part of their lives drifting in the atmosphere. These include plant spores, pollen and wind-scattered seeds, as well as microorganisms swept into the air from terrestrial dust storms and oceanic plankton swept into the air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axinellidae
Axinellidae is a family of sponges in the order Axinellida. This family includes some photo-synthetic sponges that occur throughout the world's coral reefs. They are amongst the more common sponges seen in the aquarium trade but are usually not successful species in captivity and not ones that thrive in the small household tank environment. They are common throughout the Indian Ocean and the Pacific Ocean coral reefs. Species which derive their nutrition from sunlight must stay fairly close to the surface in order for their zooxanthellae to synthesize light into the sugars these sponges use to survive. Genera There are ten genera: * ''Axinella'' Schmidt, 1862 * ''Cymbastela'' Hooper & Bergquist, 1992 * ''Dragmacidon'' Hallmann, 1917 * ''Dragmaxia'' Hallmann, 1916 * ''Ophiraphidites'' Carter, 1876 * ''Pararhaphoxya'' Burton, 1934 * ''Phycopsis (sponge), Phycopsis'' Carter, 1883 * ''Pipestela'' Alvarez, Hooper & van Soest, 2008 * ''Ptilocaulis'' Carter, 1883 * ''Reniochalina'' Lend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dragmacidon
''Dragmacidon'' is a genus of sponges in the family Axinellidae, first described in 1917 by E.F.Hallman . List of species *'' Dragmacidon agariciforme'' (Dendy, 1905) *'' Dragmacidon alvarezae'' Zea & Pulido, 2016 *'' Dragmacidon australe'' (Bergquist, 1970) *''Dragmacidon clathriforme'' (Lendenfeld, 1888) *'' Dragmacidon coccineum'' (Keller, 1891) *'' Dragmacidon condylia'' (Hooper & Lévi, 1993) *''Dragmacidon debitusae'' (Hooper & Lévi, 1993) *'' Dragmacidon decipiens'' (Wiedenmayer, 1989) *'' Dragmacidon durissimum'' (Dendy, 1905) *''Dragmacidon egregium'' (Ridley, 1881) *'' Dragmacidon fibrosum'' (Ridley & Dendy, 1886) *''Dragmacidon grayi'' (Wells, Wells & Gray., 1960) *''Dragmacidon incrustans'' (Whitelegge, 1897) *''Dragmacidon kishinense'' Austin, Ott, Reiswig, Romagosa & McDaniel, 2013 *''Dragmacidon lunaecharta'' (Ridley & Dendy, 1886) *''Dragmacidon mexicanum'' (de Laubenfels, 1935) *''Dragmacidon mutans'' (Sarà, 1978) *''Dragmacidon ophisclera'' de Laubenfels, 193 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Arthur Dendy
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
