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Mysmena Wawuensis
''Mysmena wawuensis'' is a species of spider found in China. It grows to 0.75 millimetres long. It is named after the Wawu Mountain National Forest Park in Sichuan Province in southwestern China where it was discovered and first described in 2013 by Yucheng Lin and Shuqiang Li. It was collected from the leaf litter at an altitude of and is only known from the type locality. Description Measuring just long, ''Mysmena wawuensis'' is one of the smallest spiders known. The carapace is round in the male and pear-shaped in the female. The cephalothorax is brown with dark margins, the sternum is black and the disproportionately large opisthosoma The opisthosoma is the posterior part of the body in some arthropods, behind the prosoma ( cephalothorax). It is a distinctive feature of the subphylum Chelicerata (arachnids, horseshoe crabs and others). Although it is similar in most respects ... is black, with yellow flecks. References Spiders of China Mysmenidae Spiders descr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yucheng Lin (reigned 464–485), ruler of the Rouran
{{disambiguation, geo ...
Yucheng may refer to: Places in China *Yucheng, Shandong (禹城市), county-level city of Dezhou *Yucheng County (虞城县), Shangqiu, Henan *Yucheng District (雨城区), Ya'an, Sichuan * Yucheng, Yutai County (鱼城镇), town in Yutai County, Shandong * Yucheng, Zibo (域城镇), town in Boshan District, Zibo, Shandong * Yucheng, Haiyan County, Zhejiang (于城镇), town in Haiyan County, Zhejiang Other uses * Yujiulü Yucheng Yujiulü Yucheng (; pinyin: Yùjiǔlǘ Yúchéng) (?–485) was ruler of the Rouran (464–485) with the title of Shouluobuzhen Khagan (受羅部真可汗). He was the first Rouran ruler to adopt Chinese style era name, which was Yongkang (永康 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shuqiang Li
Shuqiang Li is a Chinese arachnologist and a professor at the Institute of Zoology of the Chinese Academy of Sciences. Li is best known for his work with spiders 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 di ... and has described hundreds of new species and many genera. He is Editor in Chief of the journal ''Zoological Systematics'' (formerly ''Acta Zootaxonomica Sinica''). Selected publications * Tong, Y.F. & Li, S.Q (2007) ''One new genus and four new species of oonopid spiders from Southwest China (Araneae: Oonopidae).'' ''Annales Zoologici'' 57(2): 331-340. * Wang X.P., Zhu M.S. & Li S (2010) ''A review of the coelotine genus Eurocoelotes (Araneae: Amaurobiidae).'' ''Journal of Arachnology'' 38: 79–98. * Lin, Y., & Li, S (2014) ''Mysmenidae (Arachnida, Araneae), a spide ... [...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 a sep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sichuan
Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the Sichuan Basin and the easternmost part of the Tibetan Plateau between the Jinsha River on the west, the Daba Mountains in the north and the Yungui Plateau to the south. Sichuan's capital city is Chengdu. The population of Sichuan stands at 83 million. Sichuan neighbors Qinghai to the northwest, Gansu to the north, Shaanxi to the northeast, Chongqing to the east, Guizhou to the southeast, Yunnan to the south, and the Tibet Autonomous Region to the west. In antiquity, Sichuan was the home of the ancient states of Ba and Shu. Their conquest by Qin strengthened it and paved the way for Qin Shi Huang's unification of China under the Qin dynasty. During the Three Kingdoms era, Liu Bei's state of Shu was based in Sichuan. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set (mathematics), set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carapace
A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron. Crustaceans In crustaceans, the carapace functions as a protective cover over the cephalothorax (i.e., the fused head and thorax, as distinct from the abdomen behind). Where it projects forward beyond the eyes, this projection is called a rostrum. The carapace is calcified to varying degrees in different crustaceans. Zooplankton within the phylum Crustacea also have a carapace. These include Cladocera, ostracods, and isopods, but isopods only have a developed "cephalic shield" carapace covering the head. Arachnids In arachnids, the carapace is formed by the fusion of prosomal tergites into a single plate which carries the eyes, ocularium, ozopores (a pair of openings of the scent gland of Opilione ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalothorax
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cephalothorax'' and ''abdomen'' in some groups.) The word ''cephalothorax'' is derived from the Greek words for head (, ') and thorax (, '). This fusion of the head and thorax is seen in chelicerates and crustaceans; in other groups, such as the Hexapoda (including insects), the head remains free of the thorax. In horseshoe crabs and many crustaceans, a hard shell called the carapace covers the cephalothorax. Arachnid anatomy Fovea The fovea is the centre of the cephalothorax and is located behind the head (only in spiders).Dalton, Steve (2008). ''Spiders; The Ultimate Predators''. A & C Black, London. P.p. 19. . It is often important in identification. It can be transverse or procurved Smith, A. M. (1990c). Baboon spiders: Tarantulas of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opisthosoma
The opisthosoma is the posterior part of the body in some arthropods, behind the prosoma ( cephalothorax). It is a distinctive feature of the subphylum Chelicerata (arachnids, horseshoe crabs and others). Although it is similar in most respects to an abdomen (and is often referred to as such), the opisthosoma is differentiated by its inclusion of the respiratory organs ( book lungs or book gills) and the heart. Segments The number of segments and appendages on the opisthosoma vary. Scorpions have 13, but the first is only seen during its embryological development. Other arachnids have fewer; harvestmen, for instance, have only ten. In general, appendages are absent or reduced, although in horseshoe crabs they persist as large plate-like limbs, called opercula or branchiophores, bearing the book gills, and that function in locomotion and gas exchange. In most chelicerates the opisthosomal limbs are greatly reduced and persist only as specialized structures, such as the silk-p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of China
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] |
Mysmenidae
Mysmenidae is a spider family with about 135 described species in thirteen genera. The family is one of the least well known of the orb-weaving spiders because of their small size () and cryptic behaviour. These spiders are found in humid habitats such as among leaf litter and in caves. Distribution Species occur in the Americas, Africa, Asia, Europe, New Guinea and several islands. Genera , the World Spider Catalog accepts the following genera: *'' Brasilionata'' Wunderlich, 1995 — Brazil *'' Chanea'' Miller, Griswold & Yin, 2009 — China *'' Gaoligonga'' Miller, Griswold & Yin, 2009 — Vietnam *'' Isela'' Griswold, 1985 — Kenya, South Africa *'' Maymena'' Gertsch, 1960 — North America, Saint Vincent and the Grenadines, Central America, Peru *'' Microdipoena'' Banks, 1895 — Africa, United States, Paraguay, Asia, Oceania *''Mosu'' Miller, Griswold & Yin, 2009 — China *'' Mysmena'' Simon, 1894 — Oceania, Asia, Caribbean, North America, Algeria, Spain, South Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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