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Marbled Whipray
The marbled whipray (''Fluvitrygon oxyrhynchus'') is a little-known species of stingray in the family Dasyatidae, native to several freshwater rivers in Southeast Asia. This species has an oval pectoral fin disc with an elongated, pointed snout and a very long, whip-like tail without fin folds. It is characterized by numerous heart-shaped dermal denticles and tubercles on its upper surface, as well as a reticulated pattern of brown blotches on a light background. The maximum recorded disc width is . The marbled whipray has been assessed as Endangered by the International Union for Conservation of Nature (IUCN); it is heavily threatened by fishing and habitat loss, degradation, and fragmentation. Taxonomy French zoologist Henri-Emilé Sauvage originally described the marbled whipray as ''Trygon oxyrhynchus'' based on a female specimen caught near Saigon, Vietnam, in an 1878 volume of the scientific journal ''Bulletin de la Société philomathique de Paris''. In 1913, Samuel Garma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Émile Sauvage
Henri Émile Sauvage (22 September 1842 in Boulogne-sur-Mer – 3 January 1917 in Boulogne-sur-Mer) was a French paleontologist, ichthyologist, and herpetologist. He was a leading expert on Mesozoic fish and reptiles.Dinosaurs and Other Extinct Saurians: A Historical Perspective edited by Richard Moody He worked as a curator at the Muséum d'Histoire Naturelle in , and published extensively on |
Saigon
, population_density_km2 = 4,292 , population_density_metro_km2 = 697.2 , population_demonym = Saigonese , blank_name = GRP (Nominal) , blank_info = 2019 , blank1_name = – Total , blank1_info = US$61.7 billion , blank2_name = – Per capita , blank2_info = US$6,862 , blank3_name = GRP ( PPP) , blank3_info = 2019 , blank4_name = – Total , blank4_info = US$190.3 billion , blank5_name = – Per capita , blank5_info = US$21,163 , blank6_name = HDI (2020) , blank6_info = 0.795 ( 2nd) , area_code = 28 , area_code_type = Area codes , website = , timezone = ICT , utc_offset = +07:00 , postal_code_type = Postal code , postal_code = 700000–740000 , iso_code ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chao Phraya River
The Chao Phraya ( or ; th, แม่น้ำเจ้าพระยา, , or ) is the major river in Thailand, with its low alluvial plain forming the centre of the country. It flows through Bangkok and then into the Gulf of Thailand. Etymology On many old European maps, the river is named the ''Mae Nam'' (Thai: แม่น้ำ), the Thai word for "river" (literally, "motherly water"). James McCarthy, F.R.G.S., who served as Director-General of the Siamese Government Surveys prior to establishment of the Royal Survey Department, wrote in his account, "''Mae Nam'' is a generic term, ''mae'' signifying "mother" and ''Nam'' "water," and the epithet Chao P'ia signifies that it is the chief river in the kingdom of Siam." H. Warington Smyth, who served as Director of the Department of Mines in Siam from 1891 to 1896, refers to it in his book first published in 1898 as "the Mae Nam Chao Phraya". In the English-language media in Thailand, the name Chao Phraya River is oft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nan River
The Nan River ( th, แม่น้ำน่าน, , ) is a river in Thailand. It is one of the most important tributaries of the Chao Phraya River. Geography The Nan River originates in the Luang Prabang Range, Nan Province. The provinces along the river after Nan Province are Uttaradit, Phitsanulok and Phichit. The Yom River joins the Nan River at Chum Saeng District, Nakhon Sawan Province. When the Nan river joins together with the Ping River at Pak Nam Pho within the town Nakhon Sawan it becomes the Chao Phraya River. The Nan river runs about south. Tributaries The chief tributary of the Nan is the Yom River, which joins the Nan within Chum Saeng District in Nakhon Sawan Province. Other direct tributaries include Khlong Butsabong and Khlong San Thao of the lower Nan Basin, the Wat Ta Yom and Wang Thong Rivers which join the Nan within Phichit Province, the Khwae Noi River which joins the Nan within Phitsanulok Province, Khlong Tron and Nam Pat, which join the Nan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambodia
Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailand to the northwest, Laos to the north, Vietnam to the east, and the Gulf of Thailand to the southwest. The capital and largest city is Phnom Penh. The sovereign state of Cambodia has a population of over 17 million. Buddhism is enshrined in the constitution as the official state religion, and is practised by more than 97% of the population. Cambodia's minority groups include Vietnamese, Chinese, Chams and 30 hill tribes. Cambodia has a tropical monsoon climate of two seasons, and the country is made up of a central floodplain around the Tonlé Sap lake and Mekong Delta, surrounded by mountainous regions. The capital and largest city is Phnom Penh, the political, economic and cultural centre of Cambodia. The kingdom is an elective co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phnom Penh
Phnom Penh (; km, ភ្នំពេញ, ) is the capital and most populous city of Cambodia. It has been the national capital since the French protectorate of Cambodia and has grown to become the nation's primate city and its economic, industrial, and cultural centre. Phnom Penh succeeded Angkor Thom as the capital of the Khmer nation but was abandoned several times before being reestablished in 1865 by King Norodom. The city formerly functioned as a processing center, with textiles, pharmaceuticals, machine manufacturing, and rice milling. Its chief assets, however, were cultural. Institutions of higher learning included the Royal University of Phnom Penh (established in 1960 as Royal Khmer University), with schools of engineering, fine arts, technology, and agricultural sciences, the latter at Chamkar Daung, a suburb. Also located in Phnom Penh were the Royal University of Agronomic Sciences and the Agricultural School of Prek Leap. The city was nicknamed the "Pearl of As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mekong River
The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's twelfth longest river and the third longest in Asia. Its estimated length is , and it drains an area of , discharging of water annually. From the Tibetan Plateau the river runs through China, Myanmar, Laos, Thailand, Cambodia, and Vietnam. The extreme seasonal variations in flow and the presence of rapids and waterfalls in the Mekong make navigation difficult. Even so, the river is a major trade route between western China and Southeast Asia. Names The Mekong was originally called ''Mae Nam Khong'' from a contracted form of Tai shortened to ''Mae Khong''. In Thai and Lao, ''Mae Nam'' ("Mother of Water ) is used for large rivers and ''Khong'' is the proper name referred to as "River Khong". However, ''Khong'' is an archaic word meaning "river", loaned from Austroasiatic languages, such as Vietnamese ''sông'' (from *''krong'') and Mon ''kruŋ'' "river", which led to Chin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresh Water
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indochina
Mainland Southeast Asia, also known as the Indochinese Peninsula or Indochina, is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to the west and the Pacific Ocean to the east. It includes the countries of Cambodia, Laos, Myanmar, Thailand and Vietnam, with peninsular Malaysia sometimes also being included. The term Indochina (originally Indo-China) was coined in the early nineteenth century, emphasizing the historical cultural influence of Indian and Chinese civilizations on the area. The term was later adopted as the name of the colony of French Indochina (today's Cambodia, Laos, and Vietnam). Today, the term, Mainland Southeast Asia, in contrast to Maritime Southeast Asia, is more commonly referenced. Terminology The origins of the name Indo-China are usually attributed jointly to the Danish-French geographer Conrad Malte-Brun, who referred to the area as in 1804, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himantura Uarnak
The reticulate whipray or honeycomb stingray (''Himantura uarnak'') is a species of stingray in the family Dasyatidae. It inhabits coastal waters in the western Indian Ocean including the Red Sea, Natal and the Arabian Sea; also a Lessepsian transmigrant in the eastern Mediterranean. A large species reaching in width, the reticulate whipray has a diamond-shaped pectoral fin disc and an extremely long tail without fin folds. Both its common and scientific names refer to its ornate dorsal color pattern of many small, close-set dark spots or reticulations on a lighter background. However, the reticulate whipray is only one of several large spotted stingrays in the Indo-Pacific which, coupled with the variability of its coloration with age and locality, has resulted in a great deal of taxonomic confusion. Often encountered resting on the bottom during daytime, the reticulate whipray is a predator of bottom-dwelling invertebrates and bony fishes. Like other stingrays, it is aplacent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (biology)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia leva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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