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Cantor's Rat Snake
''Ptyas dhumnades'', commonly known as Cantor's rat snake, is a species of snake in the family Colubridae. It is found in China, Vietnam, and Taiwan. Distribution The species is widespread in South China (Anhui, Chongqin, Gansu, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shanxi, Shaanxi, Shanghai, Sichuan, Taiwan, Tianjin,Yunnan, Zhejiang), Vietnam, and Taiwan. It is found at elevations between 50 m and 2,000 m. Description It is often confused with other members of the genus Ptyas, particularly Ptyas nigromarginata ''Ptyas nigromarginata'', commonly known as the green rat snake or black-bordered rat snake, is a species of snake in the family Colubridae. The species is endemic to parts of Southeast Asia, including regions of China, India, Myanmar, and Viet ... due to overlapping features but has distinct characteristics that set it apart. It is not entirely clear if these two species are sympatric. Scalation Dorsal scale rows: 16; Ven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Cantor
Theodore Edward Cantor () (1809–1860) was a Danish physician, zoologist and botanist. He described several new species of reptiles and amphibians, and six species have been named in his honor. Cantor was born to a Danish Jewish family; his mother was a sister of Nathaniel Wallich. Cantor worked for the British East India Company, and made natural history collections in Penang and Malacca. Career Cantor was the first Western scientist to describe the Siamese fighting fish. In the scientific field of herpetology he described many new species of reptiles and amphibians. Species first described by Cantor include '' Bungarus bungaroides'' (1839), '' Bungarus lividus'' (1839), '' Channa argus'' (1842), '' Elaphe rufodorsata'' (1842), '' Euprepiophis mandarinus'' (1842), '' Hippocampus comes'' (1850), '' Lycodon effraenis'' (1847), '' Misgurnus anguillicaudatus'' (1842), '' Naja atra'' (1842), '' Oligodon albocinctus'' (1839), '' Oligodon cyclurus'' (1839), '' Ophiophagus hannah'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colubridae
Colubridae (, commonly known as colubrids , from , 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest fossil species of the family date back to the Late Eocene epoch, with earlier origins suspected. Colubrid snakes are found on every continent except Antarctica. Description Colubrids are a very diverse group of snakes. They can exhibit many different body styles, body sizes, colors, and patterns. They can also live in many different types of habitats including aquatic, terrestrial, semi-arboreal, arboreal, desert, mountainous forests, semi-fossorial, and brackish waters. A primarily shy and harmless group of snakes, the vast majority of colubrids are not venomous, nor do most colubrids produce venom that is medically significant to mammals. However, the bites of some can escalate quickly to emergency situations. Furthermore, within the Colubridae, the South African boomslang and twig snakes, as well as the Asian keelback snakes (' ... [...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] |
South China
South China ( zh, s=, p=Huá'nán, j=jyut6 naam4) is a geographical and cultural region that covers the southernmost part of China. Its precise meaning varies with context. A notable feature of South China in comparison to the rest of China is that most of its citizens are not native speakers of Standard Chinese. Cantonese is the most common language in the region while the Hong Kong region contains the largest concentration of China's ethnic minorities. Administrative divisions Cities with urban area over one million in population Provincial capitals in bold. Namesake * South China tiger (southern China) * ''South China Morning Post'' (Hong Kong, South China) * Huanan Seafood Wholesale Market (Wuhan, Central China) * South China Normal University, a university in Guangzhou, Guangdong, China * South China Athletic Association (Hong Kong SR, China) See also * Lingnan * List of regions of China ** Northern and southern China, Southern China *** South Central China — ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam
Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and dependencies by population, fifteenth-most populous country. One of two communist states in Southeast Asia, Vietnam shares land borders with China to the north, and Laos and Cambodia to the west. It shares Maritime boundary, maritime borders with Thailand through the Gulf of Thailand, and the Philippines, Indonesia, and Malaysia through the South China Sea. Its capital is Hanoi and its largest city is Ho Chi Minh City. Vietnam was inhabited by the Paleolithic age, with states established in the first millennium BC on the Red River Delta in modern-day northern Vietnam. Before the Han dynasty's invasion, Vietnam was marked by a vibrant mix of religion, culture, and social norms. The Han dynasty annexed Northern and Central Vietnam, which were subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocean, with the China, People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. It has an area of , with mountain ranges dominating the eastern two-thirds and plains in the western third, where its Urbanization by country, highly urbanized population is concentrated. The combined Free area of the Republic of China, territories under ROC control consist of list of islands of Taiwan, 168 islands in total covering . The Taipei–Keelung metropolitan area, largest metropolitan area is formed by Taipei (the capital), New Taipei City, and Keelung. With around 23.9 million inhabitants, Taiwan is among the List of countries and dependencies by population density, most densely populated countries. Tai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptyas
''Ptyas'' is a genus of colubrid snakes. This genus is one of several colubrid genera colloquially called " rat snakes" or "ratsnakes". The generic name derives from Ancient Greek πτυάς, meaning " spitter", which referred to a kind of snake believed to spit venom in the eyes of humans, although in reality none of the ''Ptyas'' are known to spit venom. Species 13 species are recognized: * '' Ptyas carinata'' ( Günther, 1858) – keeled rat snake * '' Ptyas dhumnades'' (Cantor, 1842) – Cantor's rat snake * '' Ptyas dipsas'' ( Schlegel, 1837) – Sulawesi black racer * '' Ptyas doriae'' Boulenger, 1888 – Doria's green snake * '' Ptyas fusca'' (Günther, 1858) – white-bellied rat snake, brown rat snake * '' Ptyas herminae'' ( Boettger, 1895) – Sakishima green snake * '' Ptyas korros'' (Schlegel, 1837) – Chinese ratsnake, Indo-Chinese ratsnake * '' Ptyas luzonensis'' (Günther, 1873) – smooth-scaled mountain rat snake * '' Ptyas major'' ( Günther, 1858) – Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptyas Nigromarginata
''Ptyas nigromarginata'', commonly known as the green rat snake or black-bordered rat snake, is a species of snake in the family Colubridae. The species is endemic to parts of Southeast Asia, including regions of China, India, Myanmar, and Vietnam. www.reptile-database.org. This slender, agile snake is characterized by its striking green coloration, often accompanied by a distinctive black border along its dorsal scales.Whitaker, Romulus and Ashok Captain 2004. Snakes of India. Draco Books, 500 pp., reprinted 2007 Geographic range ''P. nigromarginata'' is found in Bhutan, Nepal, India (Darjeeling, Sikkim, Assam, Arunachal Pradesh, Nagaland), northern Bangladesh, northern Myanmar (Burma), China (Guizhou, Yunnan, southwestern Sichuan, southeastern Xizang (Tibet]), and possibly northern Vietnam. The Type locality (biology), type locality is Darjeeling, India. It has been recorded from elevations between 500m to 2300m. Description A large snake, ''P. nigromarginata'' may attain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Described In 1842
Reptiles, as commonly defined, are a group of tetrapods with an ectothermic metabolism and amniotic development. Living traditional reptiles comprise four orders: Testudines, Crocodilia, Squamata, and Rhynchocephalia. About 12,000 living species of reptiles are listed in the Reptile Database. The study of the traditional reptile orders, customarily in combination with the study of modern amphibians, is called herpetology. Reptiles have been subject to several conflicting taxonomic definitions. In Linnaean taxonomy, reptiles are gathered together under the class Reptilia ( ), which corresponds to common usage. Modern cladistic taxonomy regards that group as paraphyletic, since genetic and paleontological evidence has determined that birds (class Aves), as members of Dinosauria, are more closely related to living crocodilians than to other reptiles, and are thus nested among reptiles from an evolutionary perspective. Many cladistic systems therefore redefine Reptilia as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of China
Reptiles, as commonly defined, are a group of tetrapods with an ectothermic metabolism and Amniotic egg, amniotic development. Living traditional reptiles comprise four Order (biology), orders: Testudines, Crocodilia, Squamata, and Rhynchocephalia. About 12,000 living species of reptiles are listed in the Reptile Database. The study of the traditional reptile orders, customarily in combination with the study of modern amphibians, is called herpetology. Reptiles have been subject to several conflicting Taxonomy, taxonomic definitions. In Linnaean taxonomy, reptiles are gathered together under the Class (biology), class Reptilia ( ), which corresponds to common usage. Modern Cladistics, cladistic taxonomy regards that group as Paraphyly, paraphyletic, since Genetics, genetic and Paleontology, paleontological evidence has determined that birds (class Aves), as members of Dinosauria, are more closely related to living crocodilians than to other reptiles, and are thus nested among re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Vietnam
Reptiles, as commonly defined, are a group of tetrapods with an ectothermic metabolism and amniotic development. Living traditional reptiles comprise four orders: Testudines, Crocodilia, Squamata, and Rhynchocephalia. About 12,000 living species of reptiles are listed in the Reptile Database. The study of the traditional reptile orders, customarily in combination with the study of modern amphibians, is called herpetology. Reptiles have been subject to several conflicting taxonomic definitions. In Linnaean taxonomy, reptiles are gathered together under the class Reptilia ( ), which corresponds to common usage. Modern cladistic taxonomy regards that group as paraphyletic, since genetic and paleontological evidence has determined that birds (class Aves), as members of Dinosauria, are more closely related to living crocodilians than to other reptiles, and are thus nested among reptiles from an evolutionary perspective. Many cladistic systems therefore redefine Reptilia as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
