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Keays's Rice Rat
''Nephelomys keaysi'', also known as Keays's oryzomysMusser and Carleton, 2005, p. 1149 or Keays's rice rat, is a species of rodent in the genus '' Nephelomys'' of family Cricetidae.Weksler et al., 2006, p. 18 It is found from southeastern Peru to northern Bolivia on the eastern slope of the Andes in Yungas humid forest at altitudes of 1000 to 2600 m. Although its continued existence is not in serious danger and it is listed as "least concern", destruction of its habitat may pose a threat to some populations. In 1900, Joel Asaph Allen described two rodents from Juliaca, Peru, at an altitude of on the basis of specimens collected in 1899 and 1900 by H. H. Keays. One he named, after Keays, ''Oryzomys keaysi'', and the other ''Oryzomys obtusirostris''. He considered the former to have no close relatives and the latter to be close to '' O. longicaudatus''. Oldfield Thomas, in reporting on some specimens from Peru, concurred with the latter allocation, but considered ''O. keaysi'' to b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joel Asaph Allen
Joel Asaph Allen (July 19, 1838 – August 29, 1921) was an American zoology, zoologist, mammalogy, mammalogist, and ornithology, ornithologist. He became the first president of the American Ornithologists' Union, the first curator of birds and mammals at the American Museum of Natural History, and the first head of that museum's Department of Ornithology. He is remembered for Allen's rule, which states that the bodies of endotherms (warm-blooded animals) vary in shape with climate, having increased surface area in hot climates to lose heat, and minimized surface area in cold climates, to conserve heat. Early life Allen was born in Springfield, Massachusetts, the son of Joel Allen and Harriet Trumbull. He studied and collected specimen of natural history early in life, but he was forced to sell his relatively large collection so that he could attend the Wilbraham & Monson Academy in 1861. The following year, he transferred to Harvard University, where he studied under Louis Agassi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygodontomys
''Zygodontomys'' is a genus of rodent in the tribe Oryzomyini of the family Cricetidae. Its closest relative may be '' Scolomys''. It ranges from Central America east to the Guianas The Guianas, also spelled Guyanas or Guayanas, are a geographical region in north-eastern South America. Strictly, the term refers to the three Guianas: Guyana, Suriname, and French Guiana, formerly British Guiana, British, Surinam (Dutch colo .... It contains two species: '' Zygodontomys brunneus'' and '' Zygodontomys brevicauda''. References * Rodent genera Taxa named by Joel Asaph Allen Taxonomy articles created by Polbot {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 1900
A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three Evolution of mammalian auditory ossicles, middle ear bones. These characteristics distinguish them from reptiles and birds, from which their ancestors Genetic divergence, diverged in the Carboniferous Period over 300 million years ago. Around 6,640 Neontology#Extant taxon, extant species of mammals have been described and divided into 27 Order (biology), orders. The study of mammals is called mammalogy. The largest orders of mammals, by number of species, are the rodents, bats, and eulipotyphlans (including hedgehogs, Mole (animal), moles and shrews). The next three are the primates (including humans, monkeys and lemurs), the Artiodactyl, even-toed ungulates (including pigs, camels, and whales), and the Carnivora (including Felidae, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of Bolivia
A mammal () is a vertebrate animal of the class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles and birds, from which their ancestors diverged in the Carboniferous Period over 300 million years ago. Around 6,640 extant species of mammals have been described and divided into 27 orders. The study of mammals is called mammalogy. The largest orders of mammals, by number of species, are the rodents, bats, and eulipotyphlans (including hedgehogs, moles and shrews). The next three are the primates (including humans, monkeys and lemurs), the even-toed ungulates (including pigs, camels, and whales), and the Carnivora (including cats, dogs, and seals). Mammals are the only living members of Synapsida; this clade, together with Sauropsida (reptiles and birds), constitutes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Museum Of Natural History
The American Museum of Natural History (AMNH) is a natural history museum on the Upper West Side of Manhattan in New York City. Located in Theodore Roosevelt Park, across the street from Central Park, the museum complex comprises 21 interconnected buildings housing 45 permanent exhibition halls, in addition to a planetarium and a library. The museum collections contain about 32 million specimens of plants, animals, fungi, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts, as well as specialized collections for frozen tissue and genomic and astrophysical data, of which only a small fraction can be displayed at any given time. The museum occupies more than . AMNH has a full-time scientific staff of 225, sponsors over 120 special field expeditions each year, and averages about five million visits annually. The AMNH is a private 501(c)(3) organization. The naturalist Albert S. Bickmore devised the idea for the American Museum of Natural History in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelomys Levipes
''Nephelomys levipes'', also known as the nimble-footed oryzomysMusser and Carleton, 2005, p. 1150 or light-footed rice rat, is a species of rodent in the genus '' Nephelomys'' of family Cricetidae.Weksler et al., 2006, p. 18 It is found on the eastern slope of the Andes from southeastern Peru into west-central Bolivia in cloud forest at elevations from . It occurs in the same general area as its congener '' N. keaysi'', but at higher altitudes. In 1902, Oldfield Thomas first described this species, under the name ''Oryzomys levipes'', on the basis of specimens from both Peru and Bolivia. He compared it to the previously described ''O. keaysi'', the current ''Nephelomys keaysi'', of which he considered it to be a "smaller form".Thomas, 1902, p. 129 In 1944, Philip Hershkovitz relegated both ''O. levipes'' and ''O. keaysi'' to the synonymy of '' O. albigularis'', where it remained until it was reinstated a species in the early 1990s on the basis of genetic and other differences. Whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
In taxonomy, the scientific classification of living organisms, a synonym is an alternative scientific name for the accepted scientific name of a taxon. The Botanical nomenclature, botanical and Zoological nomenclature, zoological codes of nomenclature treat the concept of synonymy differently. * In nomenclature, botanical nomenclature, a synonym is a Binomial nomenclature, scientific name that applies to a taxon that now goes by a different scientific name. For example, Carl Linnaeus, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different Binomial nomenclature, binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigmodontomys Alfari
''Sigmodontomys alfari'', also known as the short-tailed sigmodontomys, Alfaro's rice water rat, Cana rice rat, or Allen's rice rat,Jones and Engstrom, 1986 is a species of rodent in the subfamily Sigmodontinae of family Cricetidae. It is found from Honduras through Nicaragua, Costa Rica, and Panama into South America, where it occurs from Venezuela through Colombia to Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain .... References Literature cited *Duff, A. and Lawson, A. 2004. Mammals of the World: A checklist. New Haven: A & C Black. *Jones, J.K., Jr. and Engstrom, M.D. 1986. Synopsis of the rice rats (genus ''Oryzomys'') of Nicaragua. Occasional Papers, The Museum, Texas Tech University 103:1–23. *Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. Pp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nectomys
''Nectomys'' is a genus of rodent in the tribe Oryzomyini of family Cricetidae. Musser and Carleton, 2005. It is closely related to '' Amphinectomys'' and was formerly considered congeneric with '' Sigmodontomys''. It consists of five species, which are allopatrically distributed across much of South America: '' Nectomys grandis'' in montane Colombia; '' Nectomys palmipes'' on Trinidad and in nearby Venezuela, '' Nectomys apicalis'' in the western margins of the Amazon biome, ''Nectomys rattus'' in much of Amazonia, and '' Nectomys squamipes'' in the Atlantic Forest of Brazil. These species are generally semiaquatic In biology, being semi-aquatic refers to various macroorganisms that live regularly in both aquatic and terrestrial environments. When referring to animals, the term describes those that actively spend part of their daily time in water (in ..., are normally found near water, and are commonly called water rats. Notes References Literature cited * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Hershkovitz
Philip Hershkovitz (12 October 1909 – 15 February 1997) was an American mammalogy, mammalogist. Born in Pittsburgh, he attended the Universities of Pittsburgh and Michigan and lived in South America collecting mammals. In 1947, he was appointed a curator at the Field Museum of Natural History in Chicago and he continued to work there until his death. He published much on the mammals of the Neotropics, particularly primates and rodents, and described almost 70 new species and subspecies of mammals. About a dozen species have been named after him. Life Early life Philip Hershkovitz was born on 12 October 1909 in Pittsburgh to parents Aba and Bertha (Halpern) Hershkovitz. He was the second child and only son among four siblings. He reported that his father died when he was nine years old. After graduating from Schenley High School in 1927, he attended the University of Pittsburgh from 1929 to 1931, majoring in zoology, before transferring to the University of Michigan at Ann Arbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelomys Albigularis
''Nephelomys albigularis'', also known as the white-throated oryzomys or Tomes's rice rat, is a species of rodent in the genus '' Nephelomys'' of family Cricetidae. Described in 1860, it was the first ''Nephelomys'' species to be discovered. It was originally described in the defunct genus ''Hesperomys'' as ''Hesperomys albigularis'' and considered related to the much smaller ''H. longicaudatus'' (currently ''Oligoryzomys longicaudatus''). By 1894, it was placed in ''Oryzomys'', as ''Oryzomys albigularis'', and associated with what is now '' Nephelomys meridensis''. In the early 1960s, the scope of the species was considerably expanded to include most of the species that are now in ''Nephelomys'', as well as a single name, ''boliviae'', that is currently a synonym of '' Euryoryzomys nitidus''. From 1976 on, several of these were reinstated as separate species.Musser and Carleton, 2005, p. 1145 In 2006, a phylogenetic analysis by Marcelo Weksler of the oryzomyine tribe, in which b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
