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Xenochrophis
''Xenochrophis'' is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Some members have been moved to the genus Fowlea. Etymology The generic nomen of Xenochrophis is presumably derived from the Greek ''xénos'', meaning foreign, strange; ''chros'', meaning color; and ''ophis'', meaning snake. The generic nomen probably refers to the distinctive color pattern of this type species. The gender of this generic name is masculine. Species of ''Xenochrophis'' The following species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ... are recognized as being valid.. The Reptile Database. www.reptile-database.org. References Further reading * Boulenger GA (1893). ''Catalogue of the Snakes in the British Museum (Natural History). Vol. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenochrophis
''Xenochrophis'' is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Some members have been moved to the genus Fowlea. Etymology The generic nomen of Xenochrophis is presumably derived from the Greek ''xénos'', meaning foreign, strange; ''chros'', meaning color; and ''ophis'', meaning snake. The generic nomen probably refers to the distinctive color pattern of this type species. The gender of this generic name is masculine. Species of ''Xenochrophis'' The following species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ... are recognized as being valid.. The Reptile Database. www.reptile-database.org. References Further reading * Boulenger GA (1893). ''Catalogue of the Snakes in the British Museum (Natural History). Vol. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenochrophis Vittatus
The striped keelback (''Xenochrophis vittatus'') is a species of colubrid snake native to Indonesia. It has also been introduced to Singapore and Puerto Rico. Description The striped keelback is a medium sized snake, with females growing to about 70 cm in length and males reaching 50 cm. They are noticeably thin and are colored bronze with black stripes running down the top and sides of the body. The chin and ventral areas of this snake is barred black and white. Distribution The native range of this snake is the western parts of Indonesia, mostly Sumatra and Java. Boulenger reported this species in Sulawesi, but as this was in 1897 and no other records have been made it is likely this snake is not found there. They have been introduced to Singapore, with the first record in July 1982 at Pandan Gardens. It was first recorded in western Singapore, but has since spread to the eastern parts of the island where it can be found around beaches and mangrove swamps. The white-throa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenochrophis Trianguligerus
The triangle keelback (''Xenochrophis trianguligerus'') is a species of snake found in Brunei Darussalam, Burma (Myanmar), Cambodia, India (Nicobar Islands; Arunachal Pradesh (Deban - Changlang district)), Indonesia (Nias, Mentawai, Sumatra, Laos, Malaysia (Malaya and East Malaysia), Singapore, Thailand, and Vietnam. The type locality is Java. Gallery Image:Triangle-keelback-xenochrophis-trianguligerus-1.jpg, ''Xenochrophis trianguligerus'' from Kaeng Krachan National Park. Image:Xenoch triangul 060104 tdp.jpg, Body close-up of ''X. trianguligerus'', showing triangle marks. Image:Xenoch triangul 070201 ppe.jpg, ''Xenochrophis trianguligerus'' from East Borneo References * Friedrich Boie Friedrich Boie (4 June 1789 – 3 March 1870) was a German entomologist, herpetologist, ornithologist, and lawyer.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University ... 1827 Bemerkungen über Merrem's Versuch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenochrophis Bellulus
''Xenochrophis bellulus'', the Burmese keelback water snake or Burmese white-barred keelback , is a species of water snake described by Stoliczka in 1871. It is known only from three examples collected in Myanmar, including a recent specimen from 2010. Description The Burmese keelback water snake is relatively small in size, and grow to a maximal length of between 4 and 6 centimetres. The body is elongated with a moderately long tail, and is covered by keeled scales on the dorsal section. Distribution and habitat The species is endemic to Myanmar, and is believed to have an extensive habitat extending across the interior of the country. The snake has been known to frequent wetlands and freshwater streams surrounding the Irrawaddy River floodplain, designating it as both terrestrial and aquatic, and is therefore believed to be extant at a low altitude. Behaviour Due to status as a water snake, it is believed to be semi-aquatic, inhabiting both wetlands and river system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenochrophis Maculatus
The spotted keelback (''Xenochrophis maculatus'') is a species of snake of the family Colubridae. Geographic range The snake is found in Indonesia, Malaysia, Brunei and Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde .... References * maculatus Reptiles described in 1864 Reptiles of Brunei Reptiles of Malaysia Reptiles of Indonesia Reptiles of Borneo {{colubrid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenochrophis Cerasogaster
The painted keelback (''Xenochrophis cerasogaster'') is a species of colubrid snake found in Pakistan, Nepal, Bangladesh, and India (Assam, Uttar Pradesh, West Bengal:- Kolkata). This snake is also called the dark-bellied marsh snake. Description :''See snake scales for terminology'' In this species, the head is narrow and elongated, with an angular canthus rostralis and slightly concave lores; the eyes are moderate or rather small. The rostral is 1.5 to 3.0 times as broad as it is long; the suture between the internasals is nearly as long as that between the prefrontals; the frontal is much longer than its distance from the end of the snout, as long as the parietals; the lorealae are as long as deep or a little longer, It has one preocular, two or three postoculars, and one or two suboculars; the temporals number 2+2 or 2+3. It has 9 upper labials, with the fourth (rarely fifth) entering the eye; the five or six lower labials are in contact with the anterior chin shields, which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fowlea
''Fowlea'' is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Species The following species are recognized as being valid.. The Reptile Database. www.reptile-database.org. *'' Fowlea asperrima'' – Boulenger's keelback *'' Fowlea flavipunctata'' – yellow-spotted keelback *'' Fowlea melanzosta'' – Javan keelback water snake *'' Fowlea piscator'' – checkered keelback *'' Fowlea punctulata'' *'' Fowlea sanctijohannis'' – St. John's keelback *'' Fowlea schnurrenbergeri'' *'' Fowlea unicolor'' *'' Fowlea yunnanensis'' Some snakes of this genus, like the Boulenguer's keelback and Checkered keelback came originally from the genus Xenochrophis. ''Nota bene'': A binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake Genera
List of reptile genera lists the vertebrate class of reptiles by living genus, spanning two subclasses. Subclass Anapsida Order Testudinata (turtles) Turtles are reptiles of the order Testudines characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield. Suborder Pleurodira * Superfamily Cheloides ** Family Chelidae *** Genus ''Acanthochelys'' *** Genus ''Chelodina'' *** Genus '' Chelus'' - mata mata *** Genus ''Elseya'' *** Genus '' Elusor'' - Mary River turtle *** Genus ''Emydura'' *** Genus '' Flaviemys'' - Manning River snapping turtle *** Genus ''Hydromedusa'' *** Genus ''Mesoclemmys'' *** Genus '' Myuchelys'' *** Genus ''Phrynops'' *** Genus ''Platemys'' - twist-necked turtle *** Genus ''Pseudemydura'' - western swamp turtle *** Genus '' Ranacephala'' - Hoge's side-necked turtle *** Genus ''Rheodytes'' *** Genus ''Rhinemys'' - red side-necked turtle * Superfamily Pelomedusoides ** Family Pelomedusidae *** Genus ''Pelomedusa'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colubridae
Colubridae (, commonly known as colubrids , from la, coluber, 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest species of the family date back to the Oligocene epoch. Colubrid snakes are found on every continent except Antarctica. Description While most colubrids are not venomous (or have venom that is not known to be harmful to humans) and are mostly harmless, a few groups, such as genus ''Boiga'', can produce medically significant injuries. In addition, the boomslang, the twig snakes, and the Asian genus ''Rhabdophis'' have caused human fatalities. Some colubrids are described as opisthoglyphous (often called "rear-fanged"), meaning they have elongated, grooved teeth located in the back of their upper jaws. It is likely that opisthoglyphous dentition evolved many times in the history of snakes and is an evolutionary precursor to the fangs of vipers and elapids, which are located in the front of the mouth. Classification In the pas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake
Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborder Serpentes . Like all other Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads (cranial kinesis). To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies without limbs or with greatly reduced limbs about twenty-five times independently via convergent evolution, leading to many lineages of legless lizards. These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, altho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natricinae
The Natricinae are a subfamily of colubroid snakes, sometimes referred to as a family (Natricidae). The subfamily comprises 37 genera. Members include many very common snake species, such as the European grass snakes, and the North American water snakes and garter snakes. Some Old World members of the subfamily are known as keelbacks, because their dorsal scales exhibit strong keeling. Natricine snakes are found in Africa, Asia, Europe, North America, and Central America as far south as Costa Rica. A single species, '' Tropidonophis mairii'', reaches Australia. Although the highest diversity is in North America, the oldest members are in Asia and Africa, suggesting an Old World origin for the group. Most species are semiaquatic and feed on fish and amphibians, although a few are semifossorial or leaf-litter snakes that feed on invertebrates. Most species are harmless to humans, but a few (e.g., ''Thamnophis sirtalis'', '' Thamnophis elegans'') are capable of inflicting bites t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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