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Xenochrophis
''Xenochrophis'' is a genus of snakes in the subfamily Natricinae of the Family (biology), family Colubridae. The genus is Endemism, endemic to Asia. Some members have been moved to the genus ''Fowlea''. Etymology The generic nomen ''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 are recognized as being valid.. The Reptile Database. www.reptile-database.org. References Further reading *George Albert Boulenger, Boulenger GA (1893). ''Catalogue of the Snakes in the British Museum (Natural History). Vol. I., Containing the Families ... Colubridæ Aglyphæ, part.'' London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 448 pp. + Plates I-XXVIII. (Genus ''Xenoc ... [...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-thro ... [...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 File:Triangle-keelback-xenochrophis-trianguligerus-1.jpg, ''Xenochrophis trianguligerus'' from Kaeng Krachan National Park. File:Xenoch triangul 060104 tdp.jpg, Body close-up of ''X. trianguligerus'', showing triangle marks. File:Xenoch triangul 070201 ppe.jpg, ''Xenochrophis trianguligerus'' from East Borneo File:Xenochrophis trianguligerus.jpg, Triangle Keelback from Sabah, 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''. Balt ... [...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 systems ... [...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. References * maculatus {{Short pages monitor [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). This snake is sometimes 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 are ab ... [...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'' – Spotted keelback water snake *'' Fowlea sanctijohannis'' – St. John's keelback *'' Fowlea schnurrenbergeri'' – bar-necked keelback *'' Fowlea unicolor'' – Tikiri keelback *'' Fowlea yunnanensis'' – Yunnan olive keelback Some snakes of this genus, such as Boulenger's keelback and the checkered keelback, were moved from the genus '' Xenochrophis''. ''Nota bene'': A binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming ... [...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 Source: * 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 ** ... [...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] |
Snake
Snakes are elongated limbless reptiles of the suborder Serpentes (). Cladistically squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales much like other members of the group. Many species of snakes have skulls with several more joints than their lizard ancestors and relatives, 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 only have one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have independently evolved elongate bodies without limbs or with greatly reduced limbs at least twenty-five times 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, althoug ... [...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 36 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 bit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only 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 also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
