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Calomyscidae
200px, right 200px, Mouse-like hamster using its tail for balance while standing on a branch (a feat difficult for hamsters) Mouse-like hamsters are a group of small rodents found in Syria, Azerbaijan, Iran, Turkmenistan, Afghanistan, and Pakistan. They are found in rocky outcrops and semi-mountainous areas in desert regions. The mouse-like hamsters are not true hamsters, but represent an early split from the rest of the mouse-like rodents. They were once thought to be hamsters based on the shape of their molars, but they lack the cheek pouches, flank glands and short tails of the true hamsters. The closest relatives of the mouse-like hamsters may be the extinct Cricetodontidae. Because of their seemingly early break from the rest of the mouse-like rodents, mouse-like hamsters have been placed in a family of their own, Calomyscidae, and have been referred to as living fossils. All members of the genus were once considered part of the same species, ''Calomyscus bailwardi'', b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muroidea
The Muroidea are a large superfamily of rodents, including mice, rats, voles, hamsters, lemmings, gerbils, and many other relatives. Although the Muroidea originated in Eurasia, they occupy a vast variety of habitats on every continent except Antarctica. Some authorities have placed all members of this group into a single family, Muridae, due to difficulties in determining how the subfamilies are related to one another. Many of the families within the Muroidea superfamily have more variations between the families than between the different clades. A possible explanation for the variations in rodents is because of the location of these rodents; these changes could have been due to radiation or the overall environment they migrated to or originated in. The following taxonomy is based on recent well-supported molecular phylogenies. The muroids are classified in six families, 19 subfamilies, around 280 genera, and at least 1,750 species. Taxonomy *Family Platacanthomyidae (spiny ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Hotsoni
Hotson's mouse-like hamster (''Calomyscus hotsoni'') also known as Hotson's calomyscus or Hotson's brush-tailed mouse is a species of rodent in the family Calomyscidae. It is endemic to southwestern Pakistan and southeastern Iran (Musser and Carleton, 2005; Norris et al., 2008). Name The species was named by Oldfield Thomas after John Ernest Buttery Hotson who collected the original 4 specimens in Balochistan in 1918. The species had traditionally been called Hotson's mouse-like hamster because of the presumed relationship between members of the genus '' Calomyscus'' and the hamsters. Musser and Carleton (1993) considered ''Calomyscus'' to be distinct enough from the hamsters to warrant a distinct subfamily. Numerous molecular studies (Michaux et al., 2001; Jansa and Weksler, 2004; Steppan et al., 2004) have supported the distinctive nature of the genus, and they are currently recognized as belonging to a distinct family, Calomyscidae (Musser and Carleton, 2005). In order to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Baluchi
The Baluchi mouse-like hamster (''Calomyscus baluchi'') is a species of rodent in the family Calomyscidae. It is found in Afghanistan and Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 .... References * Mouse-like hamsters Mammals of Afghanistan Mammals of Pakistan Mammals described in 1920 Taxa named by Oldfield Thomas Balochistan Taxonomy articles created by Polbot {{Muroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Mystax
The Great Balkhan mouse-like hamster (''Calomyscus mystax'') is a species of rodent in the family Calomyscidae. It is found in southwestern Turkmenistan, northern Iran and southern Azerbaijan Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of t .... It was first discovered by the famed Soviet Zoologist and Ecologist, Daniil Nikolaevich Kashkarov (1878–1941) in 1925. References * Mouse-like hamsters Mammals of Afghanistan Mammals of the Middle East Mammals of Central Asia Mammals described in 1925 Taxonomy articles created by Polbot {{muroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Tsolovi
Tsolov's mouse-like hamster or Syrian calomyscus (''Calomyscus tsolovi'') is a species of rodent in the family Calomyscidae. It is endemic to Syria Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country loc .... References * Mouse-like hamsters Mouse-like Hamster, Tsolov's Mouse-like Hamster, Tsolov's Endemic fauna of Syria Mammals described in 1991 Taxonomy articles created by Polbot {{Muroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/richochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and pikas, whose i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Grandis
The noble mouse-like hamster or the noble calomyscus,Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the Worlda Taxonomic and Geographic Reference.'' D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. (''Calomyscus grandis'') is a species of mouse-like hamster from Iran. It is the largest species of ''Calomyscus'' and was initially described as a subspecies of ''Calomyscus bailwardi''.Schlitter, D. A. and H. W. Setzer. 1973. New Rodents (Mammalia: Cricetidae, Muridae) from Iran and Pakistan. Proceedings of the Biological Society of Washington, 86:163-174. The animal is found in the region near Tehran Tehran (; fa, تهران ) is the largest city in Tehran Province and the capital of Iran. With a population of around 9 million in the city and around 16 million in the larger metropolitan area of Greater Tehran, Tehran is the most popul ... and is identifiable based on its large size (74–9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Urartensis
The Urar mouse-like hamster or Azerbaijani mouse-like hamster (''Calomyscus urartensis'') is a medium-sized mouse-like hamster from Nakhichevan, Azerbaijan and northwestern Azarbaijan Province, Iran. It is among the better studied representatives of this poorly known genus. The initial species description was based on a unique chromosome number (2n=32; FNa=42) called a karyotype. The species status has been confirmed with other chromosomal studies and morphometric studies. The species description by Vorontsov ''et al.''Vorontsov, N. N., I. Kartavtseva, and E. G. Potapova. 1979. ystematics of the genus Calomyscus. 1. Karyological differentiation of the sibling species from Transcaucasia and Turkmenia and a review of species in the genus Calomyscus(in Russian). Zoologichaskii Zhurual, 58:1391-1397. and subsequent prompted elevation of several subspecies of ''Calomyscus bailwardi The Zagros Mountains mouse-like hamster (''Calomyscus bailwardi'') is a relatively little-known r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calomyscus Bailwardi
The Zagros Mountains mouse-like hamster (''Calomyscus bailwardi'') is a relatively little-known rodent which was the first species of mouse-like hamster to be described. The species is distributed throughout much of southern Iran, particularly in the Zagros mountains. It is also known as the Iranian mouse-like hamster, though there are several species of mouse-like hamster found in different parts of Iran. This is the largest species of mouse-like hamster. They are dark grey on top and white underneath. They are found in habitat ranging from barren rocky hillsides to wetter regions. They are known to feed on herbs and grass seed. Graphodatsky et al. (2000) recovered three distinct karyotype A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is disce ...s from different regions throughout th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oldfield Thomas
Michael Rogers Oldfield Thomas (21 February 1858 – 16 June 1929) was a British zoologist. Career Thomas worked at the Natural History Museum on mammals, describing about 2,000 new species and subspecies for the first time. He was appointed to the museum secretary's office in 1876, transferring to the zoological department in 1878. In 1891, Thomas married Mary Kane, daughter of Sir Andrew Clark, heiress to a small fortune, which gave him the finances to hire mammal collectors and present their specimens to the museum. He also did field work himself in Western Europe and South America. His wife shared his interest in natural history, and accompanied him on collecting trips. In 1896, when William Henry Flower took control of the department, he hired Richard Lydekker Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English naturalist, geologist and writer of numerous books on natural history. Biography Richard Lydekker was born at Tavistock Square in London. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
