|
Pseudodon Astensis
''Pseudodon'' is a genus of bivalvia from the Unionidae family of freshwater mussels native to East and Southeast Asia. There are 12 recognized species. Their life cycle is thought to be akin to other Unionids, parasitizing fish in order to disperse. They are locally consumed and provide raw materials for jewelry, cosmetics, and medicine. Description The taxon was described by John Gould from his findings at the Salween River Basin in British Burma, initially described as a subgenus of '' Anodon''. Gould included two species in the taxon, the type species ''Anodon inoscularis'' and ''Anodon salweniana''. The shell of ''Pseudodon'' is rather thick and shaped like an elongated oval, with a slightly convex crown on the upper valve shifted toward the rear. The surface, although most often smooth, is crossed by deep transverse furrows in some species. The hinge teeth are high, thick, and rounded at the apices. Range The distribution of the genus is limited to East and Southea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve Shell
A bivalve shell is the enveloping exoskeleton or mollusc shell, shell of a bivalve mollusc, composed of two hinged halves or ''valve (mollusc), valves''. The two half-shells, called the "right valve" and "left valve", are joined by a ligament and usually articulate with one another using structures known as "teeth" which are situated along the hinge line. In many bivalve shells, the two valves are symmetrical along the hinge line — when truly symmetrical, such an animal is said to be ''equivalved''; if the valves vary from each other in size or shape, ''inequivalved''. If symmetrical front-to-back, the valves are said to be ''equilateral'', and are otherwise considered ''inequilateral''. The bivalve shell not only serves as protection from predators and physical damage, but also for adductor muscles (bivalve), adductor muscle attachment, which can allow the mollusc to "swim" short distances by flapping the valves. The shell is secreted by a soft part of the molluscan body known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differs from species that have been previously described or related species. For a species to be considered valid, a species description must follow established guidelines and naming conventions dictated by relevant nomenclature codes. These include the International Code of Zoological Nomenclature (ICZN) for animals, the International Code of Nomenclature for algae, fungi, and plants (ICN) for plants, and the International Committee on Taxonomy of Viruses (ICTV) for viruses. A species description often includes photographs or other illustrations of type material and information regarding where this material is deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudodon Resupinatus
''Pseudodon'' is a genus of bivalvia from the Unionidae family of freshwater mussels native to East and Southeast Asia. There are 12 recognized species. Their life cycle is thought to be akin to other Unionids, parasitizing fish in order to disperse. They are locally consumed and provide raw materials for jewelry, cosmetics, and medicine. Description The taxon was described by John Gould from his findings at the Salween River Basin in British Burma, initially described as a subgenus of '' Anodon''. Gould included two species in the taxon, the type species ''Anodon inoscularis'' and ''Anodon salweniana''. The shell of ''Pseudodon'' is rather thick and shaped like an elongated oval, with a slightly convex crown on the upper valve shifted toward the rear. The surface, although most often smooth, is crossed by deep transverse furrows in some species. The hinge teeth are high, thick, and rounded at the apices. Range The distribution of the genus is limited to East and Southea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Vietnam
Southern Vietnam () is one of the three geographical regions of Vietnam, the other two being Northern and Central Vietnam. It includes 2 administrative subregions, which in turn are divided into 19 ''First Tier units'', of which 17 are provinces and 2 are municipalities. Known as ''Nam Bộ'' today in Vietnamese, it was historically called '' Gia Định'' (1779–1832), ''Nam Kỳ'' (1832–1945, during Nguyễn's ''Lục tỉnh'' and French Cochinchina), ''Nam Bộ'' (1945 to the present, encompassing the Empire of Vietnam and the Democratic Republic of Vietnam), and ''Nam Phần'', sometimes ''Nam Việt'' (1948–1975, during the State of Vietnam and the Republic of Vietnam). Cochinchina is a historical exonym for this region during the colonial period, which referred to the entire domain of '' Đàng Trong'' in the feudal period. A more accurate term for the southern region is ''Lower Cochinchina'', or ''Basse-Cochinchine'' in French. In the early period, Souther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambodia
Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline along the Gulf of Thailand in the southwest. It spans an area of , dominated by a low-lying plain and the confluence of the Mekong river and Tonlé Sap, Southeast Asia's largest lake. It is dominated by a tropical climate and is rich in biodiversity. Cambodia has a population of about 17 million people, the majority of which are ethnically Khmer people, Khmer. Its capital and most populous city is Phnom Penh, followed by Siem Reap and Battambang. In 802 AD, Jayavarman II declared himself king, uniting the warring Khmer princes of Chenla Kingdom, Chenla under the name "Kambuja".Chandler, David P. (1992) ''History of Cambodia''. Boulder, CO: Westview Press, . This marked the beginning of the Khmer Empire. The Indianised kingdom facilitated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thailand
Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spans . Thailand Template:Borders of Thailand, is bordered to the northwest by Myanmar, to the northeast and east by Laos, to the southeast by Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the southwest by the Andaman Sea; it also shares maritime borders with Vietnam to the southeast and Indonesia and India to the southwest. Bangkok is the state capital and List of municipalities in Thailand#Largest cities by urban population, largest city. Tai peoples, Thai peoples migrated from southwestern China to mainland Southeast Asia from the 6th to 11th centuries. Greater India, Indianised kingdoms such as the Mon kingdoms, Mon, Khmer Empire, and Monarchies of Malaysia, Malay states ruled the region, competing with Thai states s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myanmar
Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has a population of about 55 million. It is bordered by India and Bangladesh to its northwest, China to its northeast, Laos and Thailand to its east and southeast, and the Andaman Sea and the Bay of Bengal to its south and southwest. The country's capital city is Naypyidaw, and its largest city is Yangon (formerly Rangoon). Early civilisations in the area included the Tibeto-Burman-speaking Pyu city-states in Upper Myanmar and the Mon kingdoms in Lower Myanmar. In the 9th century, the Bamar people entered the upper Irrawaddy River, Irrawaddy valley, and following the establishment of the Pagan Kingdom in the 1050s, the Burmese language and Culture of Myanmar, culture and Buddhism in Myanmar, Theravada Buddhism slowly became dominant in the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yangtze River Basin
The Yangtze or Yangzi ( or ) is the longest river in Eurasia and the list of rivers by length, third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows including Dangqu, Dam Qu River the longest source of the Yangtze, in a generally easterly direction to the East China Sea. It is the List of rivers by discharge, fifth-largest primary river by discharge volume in the world. Its drainage basin comprises one-fifth of the land area of China, and is home to nearly one-third of the demographics of China, country's population. The Yangtze has played a major role in the history of China, history, culture of China, culture, and economy of China. For thousands of years, the river has been used for water, irrigation, sanitation, transportation, industry, boundary-marking, and war. The Yangtze Delta generates as much as 20% of historical GDP of China, China's GDP, and the Three Gorges Dam on the Yangtze is the list of largest hydroelec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Distribution
Species distribution, or species dispersion, is the manner in which a biological taxon is spatially arranged. The geographic limits of a particular taxon's distribution is its range, often represented as shaded areas on a map. Patterns of distribution change depending on the scale at which they are viewed, from the arrangement of individuals within a small family unit, to patterns within a population, or the distribution of the entire species as a whole (range). Species distribution is not to be confused with biological dispersal, dispersal, which is the movement of individuals away from their center of origin, region of origin or from a population center of high population density, density. Range In biology, the range of a species is the geographical area within which that species can be found. Within that range, distribution is the general structure of the species population, while dispersion is the variation in its population density. Range is often described with the foll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Gruyter
Walter de Gruyter GmbH, known as De Gruyter (), is a German scholarly publishing house specializing in academic literature. History The roots of the company go back to 1749 when Frederick the Great granted the Königliche Realschule in Berlin the royal privilege to open a bookstore and "to publish good and useful books". In 1800, the store was taken over by Georg Reimer (1776–1842), operating as the ''Reimer'sche Buchhandlung'' from 1817, while the school's press eventually became the ''Georg Reimer Verlag''. From 1816, Reimer used a representative palace at Wilhelmstraße 73 in Berlin for his family and the publishing house, whereby the wings contained his print shop and press. The building later served as the Palace of the Reich President. Born in Ruhrort in 1862, Walter de Gruyter took a position with Reimer Verlag in 1894. By 1897, at the age of 35, he had become sole proprietor of the hundred-year-old company then known for publishing the works of German romantic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apice
Apice is a ''comune'' (municipality) in the Province of Benevento in the Italian region Campania, located about 70 km northeast of Naples and about 13 km east of Benevento. Apice borders the following municipalities: Ariano Irpino, Bonito, Buonalbergo, Calvi, Melito Irpino, Mirabella Eclano, Montecalvo Irpino, Paduli, San Giorgio del Sannio, Sant'Arcangelo Trimonte, Venticano Venticano ( Irpinian: ) is a town and ''comune'' in the province of Avellino, Campania, southern Italy. Twin towns * Ferrara Ferrara (; ; ) is a city and ''comune'' (municipality) in Emilia-Romagna, Northern Italy, capital of the province .... References External linksOfficial website Cities and towns in Campania Articles which contain graphical timelines {{Campania-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hinge Teeth
Hinge teeth are part of the anatomical structure of the inner surface of a bivalve shell, i.e. the shell of a bivalve mollusk. Bivalves by definition have two valves, which are joined together by a strong and flexible ligament situated on the hinge line at the dorsal edge of the shell. In life, the shell needs to be able to open slightly to allow the foot and siphons to protrude, and then close again, without the valves moving out of alignment with one another. To make this possible, in most cases the two valves are articulated using an arrangement of structures known as hinge teeth (often referred to collectively as the "dentition"). Like the ligament, the hinge teeth are also situated along the hinge line of the shell, in most cases. In most families of bivalves, the two valves of the shell are almost perfectly symmetrical with one another along the hinge line, although the placement and shape of the teeth may differ slightly in the left valve and right valve in order for the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
