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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] |
Theodore Cantor
Theodore Edward (Theodor Edvard) Cantor (1809–1860) was a Danish physician, zoologist and botanist. 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. 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'' (1836), '' Oreocryptophis porphyracea'' (1839), ''Pareas monticola'' (1839), ''Protobothrops mucrosquamatus'' (1839), ''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Painted Keelback
Paint is any pigmented liquid, liquefiable, or solid mastic composition that, after application to a substrate in a thin layer, converts to a solid film. It is most commonly used to protect, color, or provide texture. Paint can be made in many colors—and in many different types. Paint is typically stored, sold, and applied as a liquid, but most types dry into a solid. Most paints are either oil-based or water-based and each has distinct characteristics. For one, it is illegal in most municipalities to discard oil-based paint down household drains or sewers. Clean-up solvents are also different for water-based paint than they are for oil-based paint. Water-based paints and oil-based paints will cure differently based on the outside ambient temperature of the object being painted (such as a house.) Usually, the object being painted must be over , although some manufacturers of external paints/primers claim they can be applied when temperatures are as low as . History Paint was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of India
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates ( lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Theodore Edward Cantor
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in '' Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Described In 1839
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated around 31 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Pakistan
There are around 170 species of reptiles living in Pakistan. Order Crocodilia There are only two species endemic to Pakistan. * Family Crocodylidae (crocodiles) - 1 species ** ''Crocodylus palustris'' (mugger crocodile, Indian crocodile, Indus crocodile or marsh crocodile) - national reptile * Family Gavialidae (gharials) - 1 species ** ''Gavialis gangeticus'' (Indian gavial or gharial) Order Squamata Around 153 species of Squamata are found in Pakistan. Suborder Lacertilia There are 86 species of Lacertilia (lizards and relatives) in Pakistan. * Family Agamidae (agamas) - 22 species ** ''Brachysaura minor'' (Hardwicke's bloodsucker) ** ''Calotes versicolor'' (Oriental garden lizard, eastern garden lizard or changeable lizard) ** ''Japalura kumaonensis'' (Kumaon mountain lizard) ** ''Paralaudakia badakhshana'' (Badakhshana rock agama) ** ''Paralaudakia caucasia'' (Caucasian agama) ** ''Paralaudakia himalayana'' (Himalayan agama) ** ''Laudakia agrorensis'' (Agr ... [...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] |
The Fauna Of British India, Including Ceylon And Burma
''The Fauna of British India'' (short title) with long titles including ''The Fauna of British India, Including Ceylon and Burma'', and ''The Fauna of British India Including the Remainder of the Oriental Region'' is a series of scientific books that was published by the British government in India and printed by Taylor and Francis of London. The series was started sometime in 1881 after a letter had been sent to the Secretary of State for India signed by Charles Darwin, Sir Joseph Dalton Hooker and other "eminent men of science" forwarded by P.L.Sclater to R.H. Hobart. W. T. Blanford was appointed editor and began work on the volume on mammals. In the volume on the mammals, Blanford notes: The idea was to cover initially the vertebrates, taking seven volumes, and this was followed by a proposal to cover the invertebrates in about 15 to 20 volumes and projected to cost £11,250 to £15,000. Blanford suggested that restricting it to 14 volumes would make it possible to limit the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head Shots Of Three Different Specimens
A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste. Some very simple animals may not have a head, but many bilaterally symmetric forms do, regardless of size. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissue concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head. Human head The human head is an anatomical unit that consists of the skull, hyoid bone and cervical vertebrae. The term "skull" collectively denotes the mandible (lower jaw bone) and the cranium (upper portion of the skull that houses the brain). Sculptures of human heads are generally based on a ... [...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] |
Dark Bellied Marsh Snake
Darkness, the direct opposite of lightness, is defined as a lack of illumination, an absence of visible light, or a surface that absorbs light, such as black or brown. Human vision is unable to distinguish colors in conditions of very low luminance. This is because the hue sensitive photoreceptor cells on the retina are inactive when light levels are insufficient, in the range of visual perception referred to as scotopic vision. The emotional response to darkness has generated metaphorical usages of the term in many cultures, often used to describe an unhappy or foreboding feeling. Referring to a time of day, complete darkness occurs when the Sun is more than 18° below the horizon, without the effects of twilight on the night sky. Scientific Perception The perception of darkness differs from the mere absence of light due to the effects of after images on perception. In perceiving, the eye is active, and the part of the retina that is unstimulated produces a complemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Painted Keelback (X
Paint is any pigmented liquid, liquefiable, or solid mastic composition that, after application to a substrate in a thin layer, converts to a solid film. It is most commonly used to protect, color, or provide texture. Paint can be made in many colors—and in many different types. Paint is typically stored, sold, and applied as a liquid, but most types dry into a solid. Most paints are either oil-based or water-based and each has distinct characteristics. For one, it is illegal in most municipalities to discard oil-based paint down household drains or sewers. Clean-up solvents are also different for water-based paint than they are for oil-based paint. Water-based paints and oil-based paints will cure differently based on the outside ambient temperature of the object being painted (such as a house.) Usually, the object being painted must be over , although some manufacturers of external paints/primers claim they can be applied when temperatures are as low as . History Paint was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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