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Ainudrilus Lutulentus
''Ainudrilus'' is a genus of clitellate oligochaete worms. Species The World Register of Marine Species recognizes the following species in the genus ''Ainudrilus'': * '' Ainudrilus angustivasa'' Pinder & Halse, 2002 * '' Ainudrilus billabongus'' (Brinkhurst, 1984) * '' Ainudrilus brendae'' Erséus, 1997 * '' Ainudrilus dartnalli'' Erséus & Grimm, 2002 * '' Ainudrilus fultoni'' (Brinkhurst, 1982) * '' Ainudrilus geminus'' Erséus, 1990 * '' Ainudrilus gibsoni'' Erséus, 1990 * '' Ainudrilus lutulentus'' (Erséus, 1984) * '' Ainudrilus mediocris'' Erséus, 1997 * '' Ainudrilus ngopitchup'' Pinder & Halse, 2002 * '' Ainudrilus nharna'' Pinder & Brinkhurst, 2000 * '' Ainudrilus oceanicus'' Finogenova, 1982 * '' Ainudrilus pauciseta'' Wang & Erséus, 2003 * '' Ainudrilus piliferus'' Erséus, 1997 * '' Ainudrilus stagnalis'' Erséus, 1997 * '' Ainudrilus taitamensis'' Erséus, 1990 * ''Ainudrilus vallus ''Ainudrilus'' is a genus of clitellate oligochaete worms. Species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ainudrilus Lutulentus
''Ainudrilus'' is a genus of clitellate oligochaete worms. Species The World Register of Marine Species recognizes the following species in the genus ''Ainudrilus'': * '' Ainudrilus angustivasa'' Pinder & Halse, 2002 * '' Ainudrilus billabongus'' (Brinkhurst, 1984) * '' Ainudrilus brendae'' Erséus, 1997 * '' Ainudrilus dartnalli'' Erséus & Grimm, 2002 * '' Ainudrilus fultoni'' (Brinkhurst, 1982) * '' Ainudrilus geminus'' Erséus, 1990 * '' Ainudrilus gibsoni'' Erséus, 1990 * '' Ainudrilus lutulentus'' (Erséus, 1984) * '' Ainudrilus mediocris'' Erséus, 1997 * '' Ainudrilus ngopitchup'' Pinder & Halse, 2002 * '' Ainudrilus nharna'' Pinder & Brinkhurst, 2000 * '' Ainudrilus oceanicus'' Finogenova, 1982 * '' Ainudrilus pauciseta'' Wang & Erséus, 2003 * '' Ainudrilus piliferus'' Erséus, 1997 * '' Ainudrilus stagnalis'' Erséus, 1997 * '' Ainudrilus taitamensis'' Erséus, 1990 * ''Ainudrilus vallus ''Ainudrilus'' is a genus of clitellate oligochaete worms. Species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitellate
The Clitellata are a class of annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycles. The clitellates comprise around 8,000 species. Unlike the class of Polychaeta, they do not have parapodia and their heads are less developed. Characteristics Clitellate annelids are segmented worms characterised by the clitellum or girdle which is located near the head end of mature individuals. The mouth is on the ventral surface and is overhung by the prostomium (proboscis). The brain is not located in the head but in one of the body segments. The clitellum is formed by a modification of several segments, and either includes the female gonopores or is located just behind them. During copulation, this glandular tissue secretes mucus that keeps the paired individuals together while they exchange sperm. Afterwards it secretes material that forms a cocoon that encircles the animal's body and encloses the eggs and sperm. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
