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Aysenia
''Aysenia'' is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902. Species it contains nine species from Chile and Argentina: *''Aysenia araucana'' Ramírez, 2003 – Chile *''Aysenia barrigai'' Izquierdo & Ramírez, 2008 – Chile, Argentina *''Aysenia cylindrica'' Ramírez, 2003 – Chile, Argentina *''Aysenia elongata'' Tullgren, 1902 – Chile, Argentina *''Aysenia grismadoi'' González & Ramírez, 2012 – Chile *''Aysenia huayun'' González & Ramírez, 2012 – Chile *''Aysenia izquierdoi'' González & Ramírez, 2012 – Chile *''Aysenia paposo'' Laborda, Ramírez & Pizarro-Araya, 2013 – Chile *''Aysenia segestrioides ''Aysenia'' is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902. Species it contains nine species from Chile and Argentina: *''Aysenia araucana'' Ramírez, 2003 – Chile *''Aysenia barrigai'' Izquie ...'' Ramírez, 2003 – Chile References Anyphaenidae Araneo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aysenia Araucana
''Aysenia'' is a genus of South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...n anyphaenid sac spiders first described by Albert Tullgren in 1902. Species it contains nine species from Chile and Argentina: *'' Aysenia araucana'' Ramírez, 2003 – Chile *'' Aysenia barrigai'' Izquierdo & Ramírez, 2008 – Chile, Argentina *'' Aysenia cylindrica'' Ramírez, 2003 – Chile, Argentina *'' Aysenia elongata'' Tullgren, 1902 – Chile, Argentina *'' Aysenia grismadoi'' González & Ramírez, 2012 – Chile *'' Aysenia huayun'' González & Ramírez, 2012 – Chile *'' Aysenia izquierdoi'' González & Ramírez, 2012 – Chile *'' Aysenia paposo'' Laborda, Ramírez & Pizarro-Araya, 2013 – Chile *'' Aysenia segestrioides'' Ramírez, 2003 – Chile References Anyphaenid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aysenia Elongata
''Aysenia'' is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902. Species it contains nine species from Chile and Argentina: *''Aysenia araucana ''Aysenia'' is a genus of South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the contin ...'' Ramírez, 2003 – Chile *'' Aysenia barrigai'' Izquierdo & Ramírez, 2008 – Chile, Argentina *'' Aysenia cylindrica'' Ramírez, 2003 – Chile, Argentina *'' Aysenia elongata'' Tullgren, 1902 – Chile, Argentina *'' Aysenia grismadoi'' González & Ramírez, 2012 – Chile *'' Aysenia huayun'' González & Ramírez, 2012 – Chile *'' Aysenia izquierdoi'' González & Ramírez, 2012 – Chile *'' Aysenia paposo'' Laborda, Ramírez & Pizarro-Araya, 2013 – Chile *'' Aysenia segestrioides'' Ramírez, 2003 – Chile References Anyphaenida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aysenia Barrigai
''Aysenia'' is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902. Species it contains nine species from Chile and Argentina: *''Aysenia araucana'' Ramírez, 2003 – Chile *'' Aysenia barrigai'' Izquierdo & Ramírez, 2008 – Chile, Argentina *'' Aysenia cylindrica'' Ramírez, 2003 – Chile, Argentina *''Aysenia elongata ''Aysenia'' is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902. Species it contains nine species from Chile and Argentina: *''Aysenia araucana ''Aysenia'' is a genus of South America So ...'' Tullgren, 1902 – Chile, Argentina *'' Aysenia grismadoi'' González & Ramírez, 2012 – Chile *'' Aysenia huayun'' González & Ramírez, 2012 – Chile *'' Aysenia izquierdoi'' González & Ramírez, 2012 – Chile *'' Aysenia paposo'' Laborda, Ramírez & Pizarro-Araya, 2013 – Chile *'' Aysenia segestrioides'' Ramírez, 2003 – Chile References Anyphaenidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anyphaenidae
Anyphaenidae is a family of araneomorph spiders, sometimes called anyphaenid sac spiders. They are distinguished from the sac spiders of the family Clubionidae and other spiders by having the abdominal spiracle placed one third to one half of the way anterior to the spinnerets toward the epigastric furrow on the underside of the abdomen. In most spiders the spiracle is just anterior to the spinnerets. Like clubionids, anyphaenids have eight eyes arranged in two rows, conical anterior spinnerets and are wandering predators that build silken retreats, or sacs, usually on plant terminals, between leaves, under bark or under rocks. There are more than 500 species in over 50 genera worldwide. The family is widespread and includes such common genera as ''Anyphaena'' (worldwide except tropical Africa and Asia) and ''Hibana'' (New World). Only one species ('' A. accentuata'') occurs in northwestern Europe. Species in the latter genus are important predators in several agricultural sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...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] |
