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Clitaetra
''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF/ref> The smallest species (''C. thisbe'') reaches 3.5 mm in female length, a biggest species can be as long as one centimetre. Name The etymology of the genus name is unknown. Species , a World Spider Catalog accepted a following species: * ''Clitaetra clathrata'' Simon, 1907 – West Africa * ''Clitaetra episinoides'' Simon, 1889 – Comoro Is. * ''Clitaetra irenae'' Kuntner, 2006 – South Africa * ''Clitaetra perroti'' Simon, 1894 – Madagascar * ''Clitaetra simoni'' Benoit, 1962 – Congo * ''Clitaetra thisbe ''Clitaetra thisbe'', is a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra Clathrata
''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF/ref> The smallest species (''C. thisbe'') reaches 3.5 mm in female length, a biggest species can be as long as one centimetre. Name The etymology of the genus name is unknown. Species , a World Spider Catalog accepted a following species: * '' Clitaetra clathrata'' Simon, 1907 – West Africa * '' Clitaetra episinoides'' Simon, 1889 – Comoro Is. * '' Clitaetra irenae'' Kuntner, 2006 – South Africa * ''Clitaetra perroti ''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra Simoni
''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF/ref> The smallest species (''C. thisbe'') reaches 3.5 mm in female length, a biggest species can be as long as one centimetre. Name The etymology of the genus name is unknown. Species , a World Spider Catalog accepted a following species: * ''Clitaetra clathrata'' Simon, 1907 – West Africa * '' Clitaetra episinoides'' Simon, 1889 – Comoro Is. * '' Clitaetra irenae'' Kuntner, 2006 – South Africa * ''Clitaetra perroti'' Simon, 1894 – Madagascar * '' Clitaetra simoni'' Benoit, 1962 – Congo * ''Clitaetra thisbe ''Clitaetra thisbe'', is a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra Perroti
''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF/ref> The smallest species (''C. thisbe'') reaches 3.5 mm in female length, a biggest species can be as long as one centimetre. Name The etymology of the genus name is unknown. Species , a World Spider Catalog The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of ... accepted a following species: * '' Clitaetra clathrata'' Simon, 1907 – West Africa * '' Cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra Irenae
''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF/ref> The smallest species (''C. thisbe'') reaches 3.5 mm in female length, a biggest species can be as long as one centimetre. Name The etymology of the genus name is unknown. Species , a World Spider Catalog accepted a following species: * ''Clitaetra clathrata'' Simon, 1907 – West Africa * '' Clitaetra episinoides'' Simon, 1889 – Comoro Is. * '' Clitaetra irenae'' Kuntner, 2006 – South Africa * ''Clitaetra perroti'' Simon, 1894 – Madagascar * ''Clitaetra simoni'' Benoit, 1962 – Congo * ''Clitaetra thisbe ''Clitaetra thisbe'', is a sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra Episinoides
''Clitaetra'' is a genus of spiders in a family Araneidae. It was formerly placed in a separate family, Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF/ref> The smallest species (''C. thisbe'') reaches 3.5 mm in female length, a biggest species can be as long as one centimetre. Name The etymology of the genus name is unknown. Species , a World Spider Catalog accepted a following species: * ''Clitaetra clathrata'' Simon, 1907 – West Africa * '' Clitaetra episinoides'' Simon, 1889 – Comoro Is. * ''Clitaetra irenae'' Kuntner, 2006 – South Africa * ''Clitaetra perroti'' Simon, 1894 – Madagascar * ''Clitaetra simoni'' Benoit, 1962 – Congo * ''Clitaetra thisbe ''Clitaetra thisbe'', is a spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra Thisbe
''Clitaetra thisbe'', is a species of spider of the genus '' Clitaetra''. It is endemic to Sri Lanka Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an .... References External linksA Revised Phylogenetic Analysis for the Spider Genus Clitaetra Simon, 1889 (Araneae, Araneoidea, Nephilidae) with the First Description of the Male of the Sri Lankan Species Clitaetra thisbe Araneidae Endemic fauna of Sri Lanka Spiders described in 1903 Spiders of Asia {{Araneidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneidae
Orb-weaver spiders are members of the spider family Araneidae. They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word "orb" can mean "circular", hence the English name of the group. Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs. The family has a cosmopolitan distribution, including many well-known large or brightly colored garden spiders. With 3,108 species in 186 genera worldwide, the Araneidae comprise the third-largest family of spiders (behind the Salticidae and Linyphiidae). Araneid webs are constructed in a stereotypical fashion, where a framework of nonsticky silk is built up before the spider adds a final spiral of silk covered in sticky droplets. Orb webs are also produced by members of other spider families. The long-jawed orb weavers (Tetragnathidae) were formerly included in the Araneidae; they are closely related, being part of the superfamily Araneo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eugène Simon
Eugène Louis Simon (; 30 April 1848 – 17 November 1924) was a French naturalist who worked particularly on insects and spiders, but also on birds and plants. He is by far the most prolific spider taxonomist in history, describing over 4,000 species. Work on spiders His most significant work was ''Histoire Naturelle des Araignées'' (1892–1903), an encyclopedic treatment of the spider genera of the world. It was published in two volumes of more than 1000 pages each, and the same number of drawings by Simon. Working at the Muséum National d'Histoire Naturelle in Paris, it took Simon 11 years to complete, while working at the same time on devising a taxonomic scheme that embraced the known taxa. Simon described a total of 4,650 species, and as of 2013 about 3,790 species are still considered valid. The International Society of Arachnology offers a Simon Award recognising lifetime achievement. The Eocene fossil spider species '' Cenotextricella simoni'' was named in his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Africa
Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had a separate t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Spider Catalog
The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of individual web pages in 2000, created by Norman I. Platnick of the American Museum of Natural History. After Platnick's retirement in 2014, the Natural History Museum of Bern (Switzerland) took over the catalog, converting it to a relational database. , 50,151 accepted species were listed. The order Araneae Spiders (order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species dive ... (spiders) has the seventh-most species of all orders. The existence of the World Spider Catalog makes spiders the largest taxon with an online listing that is updated regularly. It ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider
Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gondwana
Gondwana () was a large landmass, often referred to as a supercontinent, that formed during the late Neoproterozoic (about 550 million years ago) and began to break up during the Jurassic period (about 180 million years ago). The final stages of break-up, involving the separation of Antarctica from South America (forming the Drake Passage) and Australia, occurred during the Paleogene. Gondwana was not considered a supercontinent by the earliest definition, since the landmasses of Baltica, Laurentia, and Siberia were separated from it. To differentiate it from the Indian region of the same name (see ), it is also commonly called Gondwanaland. Gondwana was formed by the accretion of several cratons. Eventually, Gondwana became the largest piece of continental crust of the Palaeozoic Era, covering an area of about , about one-fifth of the Earth's surface. During the Carboniferous Period, it merged with Laurasia to form a larger supercontinent called Pangaea. Gondwana (and Pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
