Chromadorea

	Chromadorea The Chromadorea are a class of the roundworm phylum, Nematoda. They contain a single subclass (Chromadoria) and several orders. With such a redundant arrangement, the Chromadoria are liable to be divided if the orders are found to form several clades, or abandoned if they are found to constitute a single radiation. Formerly, they were treated as a subclass in the paraphyletic " Adenophorea" assemblage, which has been mostly abandoned by modern authors. It is also suspected that the Chromadorea may not be monophyletic as delimited here; at least the Monhysterida seem to be a distinct and far more ancient lineage than the rest. Members of this class' bodies usually have annules, their amphids elaborate and spiral, and they all have three esophageal glands. They usually live in marine sediments, although they can live elsewhere. They have a more sophisticated pharynx than most roundworms. Members of this class can be identified by the presence of eight conserved signature inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Chromadorea The Chromadorea are a class of the roundworm phylum, Nematoda. They contain a single subclass (Chromadoria) and several orders. With such a redundant arrangement, the Chromadoria are liable to be divided if the orders are found to form several clades, or abandoned if they are found to constitute a single radiation. Formerly, they were treated as a subclass in the paraphyletic " Adenophorea" assemblage, which has been mostly abandoned by modern authors. It is also suspected that the Chromadorea may not be monophyletic as delimited here; at least the Monhysterida seem to be a distinct and far more ancient lineage than the rest. Members of this class' bodies usually have annules, their amphids elaborate and spiral, and they all have three esophageal glands. They usually live in marine sediments, although they can live elsewhere. They have a more sophisticated pharynx than most roundworms. Members of this class can be identified by the presence of eight conserved signature inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Desmoscolecida Desmoscolecida is an order of marine nematodes. In a worm of this order, the body tapers towards each end and is marked by a number of well-defined ridges. Their number varies in the different species. The head bears four movable setae, and some of the ridges bear a pair either dorsally or ventrally. Two pigment spots between the fourth and fifth ridges are regarded as eyes. The Desmoscolecida move by looping their bodies like geometrid caterpillars or leeches, as well as by creeping on their setae. The mouth is terminal, and leads into a muscular oesophagus which opens into a straight intestine terminating in an anus, which is said to be dorsal in position. The sexes are distinct. The testis is single, and its duct opens into the intestine and is provided with two chitinous spicules. The ovary is also single, opening independently and anterior to the anus. The nervous system is as yet unknown. Genera include '' Desmoscolex'', '' Greeffiella'', and '' Tricoma''. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Nematode The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant- parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments. Less formally, they are categorized as Helminths, but are taxonomically classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa, and unlike flatworms, have tubular digestive systems with openings at both ends. Like tardigrades, they have a reduced number of Hox genes, but their sister phylum Nematomorpha has kept the ancestral protostome Hox genotype, which shows that the reduction has occurred within the nematode phylum. Nematode species can be difficult to distinguish from one another. Consequently, estimates of the number of nematode species described to date vary by author and may change rapidly over time. A 2013 survey of animal biodiversity published in the mega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Monhysterida The Monhysterida are an order in the phylum Nematoda The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broa .... Usually the stoma in Monhysterida is funnel shaped and lightly cuticularized, but it is sometimes spacious and heavily cuticularized and they always have protrusible teeth. They are either simply spiral or circular. This worm is marine. References External links accessscience* Parasitic nematodes Chromadorea Nematode orders {{parasitic animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Benthimermithida Benthimermithida is an order of nematodes belonging to the class Chromadorea The Chromadorea are a class of the roundworm phylum, Nematoda. They contain a single subclass (Chromadoria) and several orders. With such a redundant arrangement, the Chromadoria are liable to be divided if the orders are found to form several .... Families: * Benthimermithidae Petter, 1980 References Nematodes {{Nematode-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Chromadorida Chromadorida is an order of nematodes belonging to the class Chromadorea. Families: * Achromadoridae Gerlach & Riemann, 1973 * Chromadoridae Filipjev, 1917 * Cyatholaimidae Filipjev, 1918 * Ethmolaimidae Lorenzen, 1981 * Neotonchidae Neotonchidae is a family of nematodes belonging to the order Chromadorida. Genera: * ''Comesa The Common Market for Eastern and Southern Africa (COMESA) is a regional economic community in Africa with twenty-one member states stretching from ... Lorenzen, 1981 References {{Taxonbar, from=Q10451613 Nematodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tree Of Life Web Project The Tree of Life Web Project is an Internet project providing information about the diversity and phylogeny of life on Earth. This collaborative peer reviewed project began in 1995, and is written by biologists from around the world. The site has not been updated since 2011, however the pages are still accessible. The pages are linked hierarchically, in the form of the branching evolutionary tree of life, organized cladistically. Each page contains information about one particular group of organisms and is organized according to a branched tree-like form, thus showing hypothetical relationships between different groups of organisms. In 2009 the project ran into funding problems from the University of Arizona. Pages and Treehouses submitted took a considerably longer time to be approved as they were being reviewed by a small group of volunteers, and apparently, around 2011, all activities ended. History The idea of this project started in the late 1980s. David Maddison was wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Rhabditida Rhabditida is an order of free-living, zooparasitic, and phytoparasitic microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to be closer to the Tylenchia, regardless of whether these are merged with the Rhabditia or not.Tree of Life Web Project (2002b)Nematoda Version of 2002-JAN-01. Retrieved 2008-NOV-02. Families Rhabditida * Myolaimina ''Incertae sedis'' * Myolaimoidea ***Myolaimidae Rhabditina Bunonematomorpha * Bunonematoidea **Bunonematidae Diplogasteromorpha * Cylindrocorporoidea Cylindrocorporidae * Diplogasteroidea **Cephalobiidae Diplogasteridae Diplogasteroididae Rhabditomorpha * Mesorhabditoidea Peloderidae * Rhabditoidea ***Rhabditidae Spirurina Ascaridomorpha * Ascaridoidea ** Acanthocheilidae Anisakidae Ascarididae Heterocheilidae Raphidascarididae * Cosmocercoidea ** Atractidae Kathlaniidae * Seuratoidea ** Cu ... [...More Info...] [...Related Items...] OR:** [Wikipedia] [Google] [Baidu]
	Desmodorida Desmodorida is an order of nematodes belonging to the class Adenophorea. Families: * Ceramonematidae * Choniolaimidae * Chromadoridae * Comesomatidae * Cyatholaimidae * Desmodoridae * Draconematidae * Epsilonematidae * Etmolaimidae * Microlaimidae * Monoposthiidae * Richtersiidae * Selachinematidae Selachinematidae is a family of nematodes belonging to the order Desmodorida Desmodorida is an order of nematodes The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemat ... * Spiriniidae * Xennellidae References {{Taxonbar, from=Q4037243 Nematodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Ascaridida The order Ascaridida includes several families of parasitic roundworms with three "lips" on the anterior end. They were formerly placed in the subclass Rhabditia by some, but morphological and DNA sequence data rather unequivocally assign them to the Spiruria. The Oxyurida and Rhigonematida are occasionally placed in the Ascaridida as superfamily Oxyuroidea, but while they seem indeed to be Spiruria, they are not as close to ''Ascaris'' as such a treatment would place them.Tree of Life Web Project (ToL) (2002)Nematoda Version of 2002-JAN-01. Retrieved 2008-NOV-02. These "worms" contain a number of important parasites of humans and domestic animals. Important families include: * The Anisakidae are also called the "marine mammal ascarids". The larvae of these worms cause anisakiasis when ingested by humans in raw or insufficiently cooked fish, but do not reproduce in humans. * The Ascarididae include the giant intestinal roundworms (''Ascaris'' spp.). * The Cosmocercidae includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]