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Myleusnema
''Myleusnema bicornis'' is an intestinal parasite of '' Myleus ternetzi'', or "Ternetz's Silver Dollar", a freshwater Characoid fish commonly found in the French Guiana river. ''M. bicornis'' has several unusual morphological characteristics, namely the two postcloacal "horns" in the posterior of males, and a separate elongated cephalic region (head) that may be extended and retracted. These features differ vastly from other Cosmocercoidean nematodes, as well as any others within the family Kathlaniidae, and as such necessitate the creation of the new genus ''Myleusnema''; however, no genetic taxonomic studies have been performed. Etymology The generic name derives from the Greek terms ''Myleus'' (generic name of fish host) and ''nema'' (short for nematode), whereas the specific name, ''bicornis'', refers to the two postcloacal "horns" present on males. Morphology ''Myleusnema bicornis'' possess characteristics which are common for all nematodes: they are long and cylindrical wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalobatrachonema
''Megalobatrachonema'' is a nematode genus. Species of this genus are parasites of a number of amphibians including the rough-skinned newt The rough-skinned newt or roughskin newt (''Taricha granulosa'') is a North American newt known for the strong toxin exuded from its skin. Appearance A stocky newt with rounded snout, it ranges from light brown to olive or brownish-black on ...''. References Ascaridida Chromadorea genera {{Chromadorea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmoceroidea
Cosmoceroidea is a nematode super family in the order 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 t .... References Bibliography Anderson, R.M. (2000): Nematode Parasites of Vertebrates: Their Development and Transmission, 2nd Edition. New York, USA, CABI Publishing. External links Rhabditia Animal superfamilies {{Chromadorea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falcaustra
''Falcaustra'' is a genus of nematodes belonging to the family Kathlaniidae Kathlaniidae is a nematode family in the superfamily Cosmoceroidea. References External links Rhabditia Nematode families {{Chromadorea-stub .... The genus has almost cosmopolitan distribution. Species: *'' Falcaustra annandalei'' *'' Falcaustra ararath'' *'' Falcaustra armenica'' *'' Falcaustra barbi'' *'' Falcaustra belemensis'' *'' Falcaustra bengalensis'' *'' Falcaustra brevicaudata'' *'' Falcaustra chauhani'' *'' Falcaustra chiloscyllii'' *'' Falcaustra condorcanquii'' *'' Falcaustra desilvai'' *'' Falcaustra donanaensis'' *'' Falcaustra dubia'' *'' Falcaustra duyagi'' *'' Falcaustra falcata'' *'' Falcaustra fernandoi'' *'' Falcaustra greineri'' *'' Falcaustra heosemydis'' *'' Falcaustra kalasiensis'' *'' Falcaustra kaverii'' *'' Falcaustra kempi'' *'' Falcaustra khadrai'' *'' Falcaustra kinsellai'' *'' Falcaustra kutcheri'' *'' Falcaustra leptocephala'' *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, 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 Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
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] |
Rhabditia
Subclass Rhabditia is mostly composed of parasitic nematodes (particularly in the Strongylida), though there are some free-living species as well (particularly in the Rhabditida). Phasmids (posterior sensory structures) are well-developed, while amphids (anterior sensory structures) are poorly developed or absent in this group. In an alternate classification system, they are treated as suborder Rhabditina, with the orders listed here being ranked as infraorders. Also, the Diplogasterida, which are sometimes considered a monotypic subclass, are probably better placed in the Rhabditia. On the other hand, the old placement of the Ascaridida in Rhabditia instead of Spiruria seems unwarranted. The Rhabditida contain a number of families which are probably better placed in the Tylenchia; alternatively, the latter group may entirely be merged with the Rhabditia.Tree of Life Web Project (ToL) (2002b)Nematoda Version of 2002-JAN-01. Retrieved 2008-NOV-02.ToL (2002) See also * ''Sk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
