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Dorceus Quadrispilotus
''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus'' C. L. Koch, 1846 ( type) – Tunisia, Senegal, Israel *''Dorceus latifrons ''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus ''Dorceus'' is a genus of velvet spiders ...'' Simon, 1873 – Algeria, Tunisia *'' Dorceus quadrispilotus'' Simon, 1908 – Egypt *'' Dorceus trianguliceps'' Simon, 1911 – Tunisia References External links * Araneomorphae genera Eresidae {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Ludwig Koch
Carl Ludwig Koch (21 September 1778 – 23 August 1857) was a German entomologist and arachnologist. He was responsible for classifying a great number of spiders, including the Brazilian whiteknee tarantula and common house spider. He was born in Kusel, Germany, and died in Nuremberg, Germany. Carl Ludwig Koch was an inspector of water and forests. His principal work ''Die Arachniden'' (1831–1848) (16 volumes) was commenced by Carl Wilhelm Hahn (1786–1836). Koch was responsible for the last 12 volumes. He also finished the chapter on spiders in ''Faunae insectorum germanicae initia oder Deutschlands Insecten'' lements of the insect fauna of Germanya work by Georg Wolfgang Franz Panzer (1755–1829). He also co-authored, with Georg Karl Berendt, an important monograph ''Die im Bernstein befindlichen Myriapoden, Arachniden und Apteren der Vorwelt'' (1854) on arachnids, myriapods, and wingless insects in amber based on material in Berendt's collection, now held in the Muse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorceus Fastuosus
''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch Carl Ludwig Koch (21 September 1778 – 23 August 1857) was a German entomologist and arachnologist. He was responsible for classifying a great number of spiders, including the Brazilian whiteknee tarantula and common house spider. He was born ... in 1846. Species it contains five species: *'' Dorceus albolunulatus'' ( Simon, 1876) – Algeria *'' Dorceus fastuosus'' C. L. Koch, 1846 ( type) – Tunisia, Senegal, Israel *'' Dorceus latifrons'' Simon, 1873 – Algeria, Tunisia *'' Dorceus quadrispilotus'' Simon, 1908 – Egypt *'' Dorceus trianguliceps'' Simon, 1911 – Tunisia References External links * Araneomorphae genera Eresidae {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of 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 produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, 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 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 specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eresidae
Velvet spiders (family Eresidae) are a small group (about 130 species in 9 genera) of spiders almost entirely limited to the Old World, with exception of a few species known from Brazil. In Europe some are commonly called the ladybird spiders Description This family can sometimes be confused with the jumping spiders, or those in the Palpimanidae family. These spiders are usually black or brown in color, thought they can also have brighter colors as pictured. As their common name implies they can look quite smooth and velvety. They usually live in silken tubes under objects, or underground, but the genus ''Stegodyphus,'' builds silken nests. Identification They can be distinguished from most species except the Penestomidae by their semi rectangular carapace and clypeal hood. Thought the can be distinguished from Penestomidae by the eye arrangement, straight anterior eye row and strongly recurved posterior eye row, with the median eyes close together. Social Behavior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorceus Albolunulatus
''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *'' Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus ''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch Carl Ludwig Koch (21 September 1778 – 23 August 1857) was a German entomologist and arachnologist. He was responsible for classifying a great number of spider ...'' C. L. Koch, 1846 ( type) – Tunisia, Senegal, Israel *'' Dorceus latifrons'' Simon, 1873 – Algeria, Tunisia *'' Dorceus quadrispilotus'' Simon, 1908 – Egypt *'' Dorceus trianguliceps'' Simon, 1911 – Tunisia References External links * Araneomorphae genera Eresidae {{Araneomorphae-stub ... [...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] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorceus Latifrons
''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus ''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch Carl Ludwig Koch (21 September 1778 – 23 August 1857) was a German entomologist and arachnologist. He was responsible for classifying a great number of spider ...'' C. L. Koch, 1846 ( type) – Tunisia, Senegal, Israel *'' Dorceus latifrons'' Simon, 1873 – Algeria, Tunisia *'' Dorceus quadrispilotus'' Simon, 1908 – Egypt *'' Dorceus trianguliceps'' Simon, 1911 – Tunisia References External links * Araneomorphae genera Eresidae {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorceus Quadrispilotus
''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus'' C. L. Koch, 1846 ( type) – Tunisia, Senegal, Israel *''Dorceus latifrons ''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus ''Dorceus'' is a genus of velvet spiders ...'' Simon, 1873 – Algeria, Tunisia *'' Dorceus quadrispilotus'' Simon, 1908 – Egypt *'' Dorceus trianguliceps'' Simon, 1911 – Tunisia References External links * Araneomorphae genera Eresidae {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorceus Trianguliceps
''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus'' C. L. Koch, 1846 ( type) – Tunisia, Senegal, Israel *''Dorceus latifrons'' Simon, 1873 – Algeria, Tunisia *''Dorceus quadrispilotus ''Dorceus'' is a genus of velvet spiders that was first described by C. L. Koch in 1846. Species it contains five species: *''Dorceus albolunulatus'' ( Simon, 1876) – Algeria *''Dorceus fastuosus'' C. L. Koch, 1846 ( type) – Tunisia, Seneg ...'' Simon, 1908 – Egypt *'' Dorceus trianguliceps'' Simon, 1911 – Tunisia References External links * Araneomorphae genera Eresidae {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneomorphae Genera
The Araneomorphae (also called the Labidognatha) are an infraorder of spiders. They are distinguishable by chelicerae (fangs) that point diagonally forward and cross in a pinching action, in contrast to the Mygalomorphae (tarantulas and their close kin), where they point straight down. Araneomorphs comprise the vast majority of living spiders. Distinguishing characteristics Most spider species are Araneomorphae, which have fangs that face towards each other, increasing the orientations they can employ during prey capture. They have fewer book lungs (when present), and the females typically live one year. The Mygalomorphae have fangs that face towards the ground, and which are parallel to the long axis of the spider's body, thus they have only one orientation they can employ during prey capture. They have four pairs of book lungs, and the females often live many years. Image:Atrax robustus.jpg, This ''Atrax robustus'' shows the orientation of Myglamorphae fangs. Image:Che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_(2).jpg "Click for more on -> Type Species")