Refimprove type animal date December 2009 Taxobox name Enchytraeidae regnum Animal ia subregnum Eumetazoa phylum Annelida classis Clitellata subclassis Oligochaeta ordo Haplotaxida subordo Tubificina superfamilia Enchytraeoidea familia Enchytraeidae familia authority Vejdovsk , 1879 The Enchytraeidae are a microdrile oligochaeta oligochaete family. They resemble small earthworm s and include both terrestrial species known as potworms that live in highly organic terrestrial environments, as well as some that are Marine ocean marine . The peculiar genus Mesenchytraeus is known as ice worms , as they live in glacier s and will die if exposed to temperatures a few degrees above freezing. Apart from these, the best known species is probably the Grindal Worm Enchytraeus buchholzi , which is commercially bred as aquarium fish food. Selected genera Enchytraeidae genera include ref WoRMS 2010 ref Achaeta small Vejdovsk , 1878 small Archienchytraeus small Eisen, 1878 small nomen dubium Cernosvitoviella small Nielsen & Christensen, 1959 small Christensenidrilus small D zsa Farkas & Convey, 1998 small Christensenia small D zsa Farkas & Convey, 1997 non Brinck 1945 Christensenia beetle preoccupied small Cognettia small Nielsen & Christensen, 1959 small Enchytraeina small B low, 1957 small Enchytraeus Epitelphusa small Drago, 1887 small Fridericia small Michaelsen, 1889 small Grania Hemifridericia small Nielsen & Christensen, 1949 small Henlea small Michaelsen, 1889 small Henleanella Friend, 1913 Lumbricillus small rsted, 1844 small Enchytraeoides Roule, 1888 , Pachydrilus Clapar de, 1961 Marionina small Michaelsen in Pfeffer, 1890 small Marionia small Michaelsen, 1889 non Vayssi re, 1877 ... www.marinespecies.org aphia.php?p taxdetails&id 2038 Enchytraeidae . Version of 2010 MAY 11. Retrieved 2011 FEB 06. Category Enchytraeidae Annelid stub ca Enquitreid de Enchytr en fr Enchytraeidae pl Wazonkowcowate pt Enchytraeidae fi nkyrimadot ... more details
Unreferenced date December 2007 Italic title Taxobox name Mesenchytraeus harrimani regnum Animal ia phylum Annelida classis Clitellata subclassis Oligochaeta ordo Haplotaxida familia Enchytraeidae genus Mesenchytraeus species M. harrimani binomial Mesenchytraeus harrimani binomial authority Eisen, 1904 Mesenchytraeus harrimani is an ice worm , named after E. H. Harriman . The worm was first discovered by an insect trapper on board Harriman s famous Arctic expedition, and was given the name by the entomologist Trevor Kincaid . The worm can grow to almost convert 60 mm in length and convert 2.5 mm abbr on thick. Like other ice worms, it subsists on algae and pollen . References reflist Category Enchytraeidae Category Animals described in 1904 annelid stub ... more details
for the 2007 novel by Grace O Malley Grania She King of the Irish Seas italic title Taxobox name Grania regnum Animal ia phylum Annelid a classis Clitellata ordo Haplotaxida familia Enchytraeidae genus Grania genus authority Southern, 1913 ref cite web author T. Timm, & C. Ers us year 2009 title Grania Southern, 1913 publisher World Register of Marine Species url http www.marinespecies.eu aphia.php?p taxdetails&id 137349 accessdate April 22, 2010 ref synonyms Hemigrania small Lasserre, 1971 small Grania is a genus of marine worms in the class Clitellata . They are found at many depths in sands throughout the world. They are generally about convert 2 cm in length and mostly colorless or white, though Grania colorata , a recently discovered species found in the Great Barrier Reef , is green. 71 species in the genus Grania have been identified. References reflist Category Enchytraeidae Annelid stub sl Grania ... more details
Christian Overgaard Nielsen January 16, 1918 January 26, 1999 was a Denmark Danish zoologist and ecologist . Career Overgaard Nielsen was a soil ecologist . He was a specialist on soil nematode s and Enchytraeidae . He investigated the role of the soil microfauna in the decomposition of plant litter and recycling of nutrient s in ecosystem s. He was a visiting scientist with Charles Elton at Oxford University 1950 1953 ref http books.google.com books?id 6C4b1nZfrUwC Crowcroft, Peter 1991 Elton s Ecologists A History of the Bureau of Animal Population. University of Chicago Press ISBN 0226121488 ref . He was then employed at the Mols Laboratory under Aarhus University . In 1964, he was appointed professor of zoology at the University of Copenhagen . ref Christensen, B. 2000 Christian Overgaard Nielsen 16. januar 1918 26. januar 1999 . Kongelige Danske Videnskabernes Selskab Oversigt over Selskabets Virksomhed 1998 2000 pp. 352 357. ref He was the first Editor in Chief of the scientific journal Oikos journal Oikos 1949 1965 . References Reflist Persondata Metadata see Wikipedia Persondata . NAME Overgaard Nielsen, Christian ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH January 16, 1918 PLACE OF BIRTH DATE OF DEATH January 26, 1999 PLACE OF DEATH DEFAULTSORT Overgaard Nielsen, Christian Category Danish zoologists Category Danish ecologists Category University of Copenhagen faculty Category 1918 births Category 1999 deaths Denmark scientist stub Zoologist stub ... more details
italic title Taxobox name Enchytraeus regnum Animal ia phylum Annelid a classis Clitellata subclassis Oligochaeta ordo Haplotaxida familia Megascolecidae genus Enchytraeus genus authority Friedrich Gustav Jakob Henle Henle , 1837 subdivision ranks Species subdivision 40 , see text The genus Enchytraeus includes about 40 species of Annelida annelid worms. The term white worm is often used for all of the species in general, but specifically it is E. albidus which is named the white worm. This species is used as fish food by aquarium enthusiasts. E. buchholzi is known as the Grindal worm . It was named for the Sweden Swedish fish breeder that first raised the worm to feed her fish. Some species are terrestrial, some semi aquatic, and others marine ocean marine . Some can be found in brackish water or on beaches. Several of these species lack sex organs and reproduce by fragmenting, notably E. fragmentosus , which gets its name from this characteristic. Species include Enchytraeus albidus White worm Enchytraeus buchholzi Grindal worm Enchytraeus capitatus Enchytraeus citrinus Enchytraeus fragmentosus Enchytraeus japonensis Enchytraeus kincaidi Enchytraeus lacteus Enchytraeus liefdeensis Enchytraeus minutus Enchytraeus multiannulatoides Enchytraeus multiannulatus Enchytraeus rupus Enchytraeus saxicola Enchytraeus variatus See also External links http www.trjfas.org pdf issue 4 1 05 07.pdf White Worm Devrim Memi et al. The Effect of Different Diets on the White Worm Enchytraeus albidus Henle, 1837 Reproduction , Turkish Journal of Fisheries and Aquatic Sciences 4 05 07 2004 Category Enchytraeidae ru uk ... more details
Unreferenced stub type animal auto yes date December 2009 Taxobox image Regenworm1.jpg image width 240px image caption Helodrilus caliginosus Lumbricina Lumbricidae regnum Animal ia subregnum Eumetazoa phylum Annelida classis Clitellata subclassis Oligochaeta small but see text small ordo Haplotaxida ordo authority subdivision Haplotaxina br Lumbricina br Moniligastrina br Tubificina subdivision ranks Suborder s The Haplotaxida are one of two order biology order s within the annelid Class biology subclass Oligochaeta , the other being the Lumbriculida . No real common name exists, but they are simply referred to as haplotaxids . Given that the other clitellata n annelids are embedded between and around the Haplotaxida and Lumbriculida, the traditional Oligochaeta are a paraphyletic assemblege. Thus, the Haplotaxida might eventually be up ranked to Class biology subclass status within the Clitellata or an expanded Oligochaeta, with the present suborders advancing to order rank. The latter &ndash though without merging the Oligochaeta and Clitellata &ndash has been proposed times and again in the past, most prominently for the distinct Moniligastrina . Families Of the four suborder s of Haplotaxida, two are minor lineages, monotypic at family biology family level. Another one, the Tubificina , is sizeable and contains the aquaworms , while the fourth, the earthworm s or Lumbricina, unites the bulk of the order s families Suborder Haplotaxina Haplotaxidae Suborder Moniligastrina Moniligastridae Suborder Lumbricina Alluroididae Eudrilidae Glossoscolecidae Lumbricidae Hormogastridae Ailoscolidae Lutodrilidae Sparganophilidae Criodrilidae Ocnerodrilidae Acanthodrilidae Octochaetidae Exxidae Megascolecidae Microchaetidae Suborder Tubificina Dorydrilidae Enchytraeidae Naididae including Tubificidae Opistocystidae Phreodrilidae Commons category Category Haplotaxida Annelid stub ca Haplot xid fr Haplotaxida sv Haplotaxida ... more details
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