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Pseudodon Pingi
''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] |
