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Sibynophis Sagittarius
''Sibynophis sagittarius'', commonly known as Cantor's black-headed snake after Theodore Cantor,Das, Indraneil. 2002. ''A Photographic Guide to Snakes and Other Reptiles of India''. Ralph Curtis Books. Sanibel Island, Florida. 144 pp. (''Sibynophis sagittaria'' ic p. 45.) is a species of snake endemic to South Asia. Geographic range It is found in central and northeastern India, Bhutan, Nepal, and Pakistan. It is uncertain whether the species occurs or has occurred in Bangladesh. Description Adults may attain 28 cm (11 inches) in total length, with a tail 6 cm (2⅜ inches) long. As the common name implies, the dorsal surface of the head, including the nape of the neck, is black or dark brown, followed by a thin yellow nuchal collar. Also, there are two large elongate yellowish spots, one on each side of the back of the head. The upper surface of the body is pale brown, and the sides of the body are darker brown or gray. On each flank there is a thin black stri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uttarakhand
Uttarakhand ( , or ; , ), also known as Uttaranchal ( ; the official name until 2007), is a state in the northern part of India. It is often referred to as the "Devbhumi" (literally 'Land of the Gods') due to its religious significance and numerous Hindu temples and pilgrimage centres found throughout the state. Uttarakhand is known for the natural environment of the Himalayas, the Bhabar and the Terai regions. It borders the Tibet Autonomous Region of China to the north; the Sudurpashchim Province of Nepal to the east; the Indian states of Uttar Pradesh to the south and Himachal Pradesh to the west and north-west. The state is divided into two divisions, Garhwal and Kumaon, with a total of 13 districts. The winter capital of Uttarakhand is Dehradun, the largest city of the state, which is a rail head. Bhararisain, a town in Chamoli district, is the summer capital of Uttarakhand. The High Court of the state is located in Nainital. Archaeological evidence supports the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale (anatomy)
In most biological nomenclature, a scale ( grc, λεπίς, lepís; la, squāma) is a small rigid plate that grows out of an animal's skin to provide protection. In lepidopteran (butterfly and moth) species, scales are plates on the surface of the insect wing, and provide coloration. Scales are quite common and have evolved multiple times through convergent evolution, with varying structure and function. Scales are generally classified as part of an organism's integumentary system. There are various types of scales according to shape and to class of animal. Fish scales File:Ganoid scales.png, Ganoid scales on a carboniferous fish ''Amblypterus striatus'' File:Denticules cutanés du requin citron Negaprion brevirostris vus au microscope électronique à balayage.jpg, Placoid scales on a lemon shark (''Negaprion brevirostris'') File:RutilusRutilusScalesLateralLine.JPG, Cycloid scales on a common roach (''Rutilus rutilus'') Fish scales are dermally derived, specifically i ... [...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] |
Reptiles Of Nepal
Wildlife diversity is a notable feature of Nepal. Because of the variance in climate, from tropical to arctic, Nepal has a large variety of plants and animals. Wildlife tourism is also a major source of tourism in the country. There are some animal species which are unique to Nepal, such as the spiny babbler. Nepal is also host to many rhododendron species. The wildlife of Nepal includes its flora and fauna. Nepal has established numerous national parks and reserves in order to protect its diverse fauna. Nepal is a biodiversity hot spot with ecoregions broadly comprising the mountainous ecoregion, the savanna and grasslands ecoregion of the terai (foothills), and the Rara Lake ecoregion, which has many endemic species. Legal protection Nepal has established numerous national parks and reserves in order to protect its diverse fauna ever since 1973, with the passing of the National Parks and Wildlife Conservation Act 2029 BS. There are four different "classes" of protection, rang ... [...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] |
Reptiles Of Bhutan
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] |
Snakes Of Asia
Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping 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, although this rule is not universal (see Amphisbaenia, Dibamid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sibynophis
''Sibynophis'' is a genus of nonvenomous colubrid snakes, commonly called many-toothed snakes, which together with ''Scaphiodontophis'' make up the subfamily Sibynophiinae. Species The following nine species are recognized.Wikispecies * '' Sibynophis bistrigatus'' ( Günther, 1868) – Günther's many-toothed snake * ''Sibynophis bivittatus'' ( Boulenger, 1894) – white-striped snake * ''Sibynophis chinensis'' ( Günther, 1889) – Chinese many-toothed snake * '' Sibynophis collaris'' (Gray, 1853) – common many-toothed snake * '' Sibynophis geminatus'' ( H. Boie, 1826) – Boie's many-toothed snake * ''Sibynophis melanocephalus'' (Gray, 1835) – black-headed collared snake, Malayan many-toothed snake * ''Sibynophis sagittarius'' (Cantor, 1839) – Cantor's black-headed snake * ''Sibynophis subpunctatus'' ( A.M.C. Duméril, Bibron & A. Duméril, 1854) – Duméril's black-headed snake, Jerdon's many-toothed snake * '' Sibynophis triangularis'' Taylor Taylor, Taylors or Tayl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oviparous
Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and monotremes. In traditional usage, most insects (one being ''Culex pipiens'', or the common house mosquito), molluscs, and arachnids are also described as oviparous. Modes of reproduction The traditional modes of reproduction include oviparity, taken to be the ancestral condition, traditionally where either unfertilised oocytes or fertilised eggs are spawned, and viviparity traditionally including any mechanism where young are born live, or where the development of the young is supported by either parent in or on any part of their body. However, the biologist Thierry Lodé recently divided the traditional category of oviparous reproduction into two modes that he named ovuliparity and (true) oviparity respectively. He distinguished the ... [...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] |
Skink
Skinks are lizards belonging to the family Scincidae, a family in the infraorder Scincomorpha. With more than 1,500 described species across 100 different taxonomic genera, the family Scincidae is one of the most diverse families of lizards. Skinks are characterized by their smaller legs in comparison to typical lizards and are found in different habitats except arctic and subarctic regions. Description Skinks look like lizards of the family Lacertidae (sometimes called ''true lizards''), but most species of skinks have no pronounced neck and relatively small legs. Several genera (e.g., ''Typhlosaurus'') have no limbs at all. This is not true for all skinks, however, as some species such as the red-eyed crocodile skink have a head that is very distinguished from the body. These lizards also have legs that are relatively small proportional to their body size. Skinks' skulls are covered by substantial bony scales, usually matching up in shape and size, while overlapping. Other gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock, molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 Myr, million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from Taxonomy (biology), taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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