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Atheris
''Atheris'' is a genus of Viperinae, vipers known as bush vipers.Spawls S, William Roy Branch, Branch B (1995). ''The Dangerous Snakes of Africa''. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. . They are found only in tropical Sub-Saharan Africa, subsaharan Africa (excluding southern Africa) and many species have isolated and fragmented Species distribution, distributions due to their confinement to rain forests.Mallow D, Ludwig D, Nilson G (2003). ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. 359 pp. . Like all other vipers, they are venomous snake, venomous. In an example of convergent evolution, they show many similarities to the arboreal Crotalinae, pit vipers of Asia and South America. Seventeen species are currently recognized. Description They are relatively small in size, with adults ranging in total length (body + tail) from for ''Atheris katangensis, A. katangensis'' to a maximum of for ''Ather ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atheris Squamigera
''Atheris squamigera'' (common names: green bush viper,David Mallow, Mallow D, David Ludwig (herpetologist), Ludwig D, Göran Nilson, Nilson G (2003). ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. 359 pp. .Stephen Spawls, Spawls S, William Roy Branch, Branch B (1995). ''The Dangerous Snakes of Africa''. Dubai: Oriental Press/Ralph Curtis Books. 192 pp. . variable bush viper, leaf viper, Hallowell's green tree viper, and #Common names, others) is a venomous Viperinae, viper species Endemism, endemic to west and central Africa. No subspecies are currently recognized. Description ''Atheris squamigera'' grows to an average total length (body + tail) of , with a maximum total length that sometimes exceeds . Females are usually larger than males. The head is broad and flat, distinct from the neck. The mouth has a very large gape. The head is thickly covered with keeled, imbricate scales. The rostral scale is not visi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atheris Ceratophora
:''Common names: Usambara bush viper,Spawls S, Branch B. 1995. The Dangerous Snakes of Africa. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. . horned bush viper, eyelash bush viper, more.'' ''Atheris ceratophora'' is a venomous viper species endemic to a few mountain ranges in Tanzania. This used to be the only horned, arboreal viper known from Africa, until the discovery in 2011 of ''Atheris matildae'', also found in Tanzania. No subspecies are currently recognized. Description It grows to a maximum total length (body + tail) of . Females are slightly larger than males. The maximum total length for a male is reported to be , the tail of which measured .Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. . Easily recognized by a set of 3-5 horn-like superciliary scales above each eye. The rostral scale is more than twice as broad as high. There are 9 upper labials. The first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atheris Hispida
''Atheris hispida'' is a viper species endemic to Central Africa. Like all other vipers, it is venomous. It is known for its extremely keeled dorsal scales ("spikes") that give it a bristly appearance. No subspecies are currently recognized. Common names include rough-scaled bush viper, spiny bush viper,Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. 359 pp. . hairy bush viper, and others. Description The males of this species grow to a maximum total length of : body , tail . Females grow to a maximum total length of . The males are surprisingly long and slender compared to the females. The head has a short snout, more so in males than in females. The eyes are large and surrounded by 9–16 circumorbital scales. The orbits (eyes) are separated by 7–9 scales. The nostril is like a slit and separated from the eye by two scales. The eye and the supralabials are separated by a si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atheris Katangensis
''Atheris katangensis'', also known as the Katanga Mountain bush viper and other common names, is a species of venomous viper found in the eastern Democratic Republic of the Congo and in Zambia. No subspecies are currently recognized. Description It attains a maximum total length (body + tail) of only , making this the smallest member of the genus ''Atheris''.Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. 359 pp. . The head is flat, triangular, distinct from the neck, and covered with small keeled scales. The snout is rounded. Midbody there are 24–31 rows of dorsal scales. The tail is short. Males and females have 45–59 and 38–42 subcaudal scales respectively. The color pattern consists of a purple-brown or yellow-brown ground color, overlaid with paired dorsolateral lines of a contrasting shade. These lines may break into a zigzag pattern and run from head to tail. The b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viperinae
Viperinae, or viperines, are a subfamily of vipers endemic to Europe, Asia and Africa. They are distinguished by their lack of the heat-sensing pit organs that characterize their sister group, the subfamily Crotalinae. Currently, 13 genera are recognized. Most are tropical and subtropical, although one species, '' Vipera berus'', even occurs within the Arctic Circle. Like all vipers, they are venomous. The common names "pitless vipers", "true vipers", "Old World vipers",Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company, Malabar. 359 pp. . and "true adders"U.S. Navy. 1991. ''Poisonous Snakes of the World''. US Govt. New York: Dover Publications Inc. 203 pp. . all refer to this group. Description Members of this subfamily range in size from '' Bitis schneideri'', which grows to a maximum total length (body and tail) of , to the Gaboon viper, which reaches a maximum total length of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crotalinae
The Crotalinae, commonly known as pit vipers,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . or pit adders, are a subfamily of vipers found in Asia and the Americas. Like all other vipers, they are venomous. They are distinguished by the presence of a heat-sensing pit organ located between the eye and the nostril on both sides of the head. Currently, 23 genera and 155 species are recognized: These are also the only viperids found in the Americas. The groups of snakes represented here include rattlesnakes, lanceheads, and Asian pit vipers. The type genus for this subfamily is '' Crotalus'', of which the type species is the timber rattlesnake, ''C. horridus''. These snakes range in size from the diminutive hump-nosed viper, '' Hypnale hypnale'', that grows to a typical total length (including tail) of only , to the bushmaster, '' Lachesis muta'', a species known to reach a maximum total length of in length. This subf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehensile
Prehensility is the quality of an appendage or organ that has adapted for grasping or holding. The word is derived from the Latin term ''prehendere'', meaning "to grasp". The ability to grasp is likely derived from a number of different origins. The most common are tree-climbing and the need to manipulate food. Examples Appendages that can become prehensile include: Uses Prehensility affords animals a great natural advantage in manipulating their environment for feeding, climbing, digging, and defense. It enables many animals, such as primates, to use tools to complete tasks that would otherwise be impossible without highly specialized anatomy. For example, chimpanzees have the ability to use sticks to obtain termites and grubs in a manner similar to human fishing. However, not all prehensile organs are applied to tool use; the giraffe tongue, for instance, is instead used in feeding Eating (also known as consuming) is the ingestion of food. In biology, this is typ ... [...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 of the United States and Canada''. Comstock Publishing Associates, a Division of Cornell University Press. (7th printing, 1985). 1,105 pp. (in two volumes). . 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, like other reptiles, have skin covered in scales.Boulenger, George A. 1890 The Fauna of British India. p. 1 Snakes are entirely covered with scales or scutes of various shapes and sizes, known as snakeskin as a whole. A scale protects ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 contacts the paraventral (lowermost) row of dorsal scales on either side. The anal scale is not counted.Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. 2 volumes. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. . The term gastrostege (from Greek γαστήρ, γαστρός = belly and στέγη, στέγος = cover, roof) was more often used in the older literature, especially pre-1900 but is rarely used today. Related scales * Preventral scales * Anal scale * Subcaudal scales * Paraventral scales See also * Snake scale Snakes, like other reptiles, have skin covered in scales.Boulenger, George A. 1890 The Fauna of British India. p. 1 Snakes are entirely covered with scales or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keeled Scales
Keeled Scales is an independent record label based in Austin, Texas. It was founded in 2014 by musicians Tony Presley (Real Live Tigers) and Seth Whaland (Literature, Tres Oui). The label has released over 60 albums from artists such as Buck Meek (of Big Thief), Katy Kirby, Lunar Vacation, Sun June and more. In 2020, the label helped curate a benefit compilation to support the Estok’Gna, an indigenous Texas tribe, in their efforts to protest the building of a gas pipeline through their lands. In 2021, Keeled Scales entered into a partnership with fellow indie label Polyvinyl Records, but still retains creative control over its operations. Also in 2021, the ''Austin Chronicle'' named Keeled Scales “Best Quiet Giant,” praising the label for its “stacked roster and tastemaking reputation.” Discography The following are the albums released by the label: #The Room Outside – ''The Room Outside'' #Real Live Tigers – ''Tomboys'' #The Shivers – ''Charades'' #Ma ... [...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. 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 noted that certain scale rows are raised, keeled or smooth as opposed to the others.U.S. Navy (1991). ''Poisonous Snakes of the World''. United States Government. New York: Dover Publications Inc. 203 pp. . See also *Snake scales *Anatomical terms of locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supralabials
In reptiles, the supralabial scales, also called upper-labials, are those scales that border the mouth opening along the upper jaw. They do not include the median scaleWright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates (7th printing, 1985). 1105 pp. . (rostral scale). The term '' labial'' originates from (Latin for "lip"), which refers to any lip-like structure. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another. Related scales * Sublabial scales * Rostral scale * Mental scale See also * Labial scales * Snake scales * Anatomical terms of location Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pr ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
