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Eryx (snake)
''Eryx'' is a genus of nonvenomous snakes, commonly known as Old World sand boas, in the subfamily Erycinae of the family Boidae. Species of the genus are found in southeastern Europe, northern Africa, the Middle East, and southwestern Asia. Thirteen species are recognized as being valid. Description The genus ''Eryx'' has the following characters. The head is not distinct from the neck. The dorsal surface of the head is covered with small scales. The rostral is large. The eyes range from small to very small, and the pupils are vertical. The anterior maxillary teeth and anterior mandibular teeth are longer than the posterior ones. The body is almost cylindrical. The dorsal scales are smooth or keeled. The tail is very short, either not prehensile or only slightly prehensile. The subcaudals are undivided. Distribution and habitat Species of snakes of the genus ''Eryx'' are found in southeastern Europe, northern Africa, the Middle East, and southwestern Asia. Species ''Nota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eryx Jaculus
''Eryx jaculus'', known commonly as the javelin sand boa, is a species of snake in the Boidae family. It is the type species of the genus ''Eryx''. Geographic range ''Eryx jaculus'' is found in Eastern Europe, the Caucasus, the Middle East, and North-Africa. In September 2014 the snake was rediscovered in Romania near the Danube after being extinct in the nation since 1937, when the last specimen was seen near Cochirleni. In late 2015 the snake was rediscovered near Licata on the south coast of Sicily after not having been officially recorded in Italy for eighty years. Description The javelin sand boa may grow to in total length (including tail). Coloring varies greatly. Dorsally, it may be grayish, tan, brownish, or reddish, with darker blotches or bars in an irregular network. It usually has a dark streak from the eye to the corner of the mouth. Ventrally it is whitish or yellowish. It is heavy-bodied and has a short blunt tail. The ventrals are very narrow, less than โ of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be separated from Asia by the watershed of the Ural Mountains, the Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. "Europe" (pp. 68โ69); "Asia" (pp. 90โ91): "A commonly accepted division between Asia and Europe ... is formed by the Ural Mountains, Ural River, Caspian Sea, Caucasus Mountains, and the Black Sea wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gongylophis Colubrinus Loveridgei
''Eryx colubrinus'', the Egyptian or Kenyan sand boa,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . is a species of snake in the family Boidae. The species is endemic to Northern and Eastern Africa. There are three subspecies which are recognized as being valid. Description The Kenyan sand boa is heavily-built snake with a small head, small eyes, vertical pupils, and a short tail. Scale texture is extremely smooth, except on the tail, which is covered in bumps. Adult female specimens of ''G. colubrinus'' are rarely more than 91 cm (3 feet) in total length (including tail). The average Kenyan sand boa grows no longer than 12-24" (30-60cm) long, with males being significantly smaller than females. The color pattern may consist of a yellow or orange coloration overlaid with dark brown splotches. The belly is white or cream colored. It is readily available in the pet trade due to its small size, docility and ease of care. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eryx Colubrinus
''Eryx colubrinus'', the Egyptian or Kenyan sand boa,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . is a species of snake in the family Boidae. The species is endemic to Northern and Eastern Africa. There are three subspecies which are recognized as being valid. Description The Kenyan sand boa is heavily-built snake with a small head, small eyes, vertical pupils, and a short tail. Scale texture is extremely smooth, except on the tail, which is covered in bumps. Adult female specimens of ''G. colubrinus'' are rarely more than 91 cm (3 feet) in total length (including tail). The average Kenyan sand boa grows no longer than 12-24" (30-60cm) long, with males being significantly smaller than females. The color pattern may consist of a yellow or orange coloration overlaid with dark brown splotches. The belly is white or cream colored. It is readily available in the pet trade due to its small size, docility and ease of care. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eryx Borrii
''Eryx borrii'' is a species of snake in the family Boidae. The species is endemic to Somalia Somalia, , Osmanya script: ๐๐๐๐๐๐๐๐; ar, ุงูุตูู ุงู, aแนฃ-แนขลซmฤl officially the Federal Republic of SomaliaThe ''Federal Republic of Somalia'' is the country's name per Article 1 of thProvisional Constituti .... References borrii Reptiles of Somalia Reptiles described in 2005 {{Alethinophidia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nota Bene
(, or ; plural form ) is a Latin phrase meaning "note well". It is often abbreviated as NB, n.b., or with the ligature and first appeared in English writing . In Modern English, it is used, particularly in legal papers, to draw the attention of the reader to a certain (side) aspect or detail of the subject being addressed. While ''NB'' is also often used in academic writing, ''note'' is a common substitute. The markings used to draw readers' attention in medieval manuscripts are also called marks. The common medieval markings do not, however, include the abbreviation ''NB''. The usual medieval equivalents are anagrams from the four letters in the word , the abbreviation DM from ("worth remembering"), or a symbol of a little hand (โ), called a manicule or index, with the index finger pointing towards the beginning of the significant passage.Raymond Clemens and Timothy Graham, Introduction to Manuscript Studies (Ithaca: Cornell University Press, 2007), p. 44. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subcaudal Scales
In snakes, the subcaudal scales are the enlarged plates on the underside of the tail.Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates (7th printing, 1985). 1105 pp. . These scales may be either single or divided (paired) and are preceded by the anal scale. Related scales * Anal scale * Ventral scales See also * Snake scales 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 ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehensile Tail
A prehensile tail is the tail of an animal that has adapted to grasp or hold objects. Fully prehensile tails can be used to hold and manipulate objects, and in particular to aid arboreal creatures in finding and eating food in the trees. If the tail cannot be used for this it is considered only partially prehensile - such tails are often used to anchor an animal's body to dangle from a branch, or as an aid for climbing. The term ''prehensile'' means "able to grasp" (from the Latin ''prehendere'', to take hold of, to grasp). Evolution One point of interest is the distribution of animals with prehensile tails. The prehensile tail is predominantly a New World adaptation, especially among mammals. Many more animals in South America have prehensile tails than in Africa and Southeast Asia. It has been argued that animals with prehensile tails are more common in South America because the forest there is denser than in Africa or Southeast Asia. In contrast, less dense forests such as in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keeled Scales
Keeled scales refer to reptile scales that, rather than being smooth, have a ridge down the center that may or may not extend to the tip of the scale, Campbell, J. A., Lamar, W. W. (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publishing Associates. 870 pp. 1,500 plates. . making them rough to the touch. According to Street's (1979) description of European lizards and snakes, in those that have keeled scales the keels are usually stronger in male specimens and are consistently arranged according to the species of reptiles, even though many others do not have them. With European lizards, the dorsal scales are usually well keeled, while those on the flanks are more weakly keeled and those on the belly smooth. Street, D. (1979). ''The Reptiles of Northern and Central Europe''. London: B.T. Batsford Ltd. 268 pp. . Non-European lizards such as ''Sphaerodactylus macrolepis'' also display keeled scales. Klauber (1997), describes how the keels ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Scales
In snakes, the dorsal scales are the longitudinal series of plates that encircle the body, but do not include the ventral scales In snakes, the ventral scales or gastrosteges are the enlarged and transversely elongated scales that extend down the underside of the body from the neck to the anal scale. When counting them, the first is the anteriormost ventral scale that cont .... Campbell JA, Lamar WW (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publishing Associates. 2 volumes. 870 pp. 1,500 plates. . When counting dorsal scales, numbers are often given for three points along the body, for example 19:21:17. These numbers correspond to the number of dorsal scales around the body at a head's length behind the head, at midbody and at a head's length before the vent. If only one number is given, it is for the midbody count. Dorsal scale are easiest to count diagonally, starting with the paraventral scale row. In doing so, it is often note ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rostral Scale
The rostral scale, or rostral, in snakes and other scaled reptiles is the median plate on the tip of the snout that borders the mouth opening. Wright AH, Wright AA (1957). ''Handbook of Snakes of the United States and Canada''. Ithaca and London: Comstock Publishing Associates. (7th printing, 1985). 1,105 pp. (in two volumes). . It corresponds to the mental scale in the lower jaw. The term pertains to the rostrum, or nose. In snakes, the shape and size of this scale is one of many characteristics used to differentiate species from one another. Related scales * Nasorostral scale * Mental scale * Labial scales See also *Snake scales *Anatomical terms of location Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pro ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsum (anatomy)
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek language, Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axis, anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal. Additionally, for some animals such as invertebrates, some terms may not have any meaning at all; for example, an animal that is radially symmetrical will have no anterior surface, but can still have a description that a part is close to the middle ("proximal") or further from the middle ("distal"). International organisations have determined vocabularies that are often used as standard vocabular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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