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Hylaeamys
''Hylaeamys'' is a genus of South American oryzomyine rodents found principally in humid forested areas east of the Andes. The species in this genus have historically been placed in ''Oryzomys''. They are most closely related to ''Euryoryzomys'', ''Transandinomys'', '' Nephelomys'', '' Oecomys'', and ''Handleyomys'', and most closely resemble species of the former two genera. They are distinguished from members of ''Euryoryzomys'' by all-dark or indistinct two-tone tail coloration (as opposed to the distinct two-tone tail coloration of ''Euryoryzomys''), from members of ''Transandinomys'' by having shorter whiskers above their eyes that do not extend posteriorly behind their ears, and in both cases by differences in carotid circulation. The genus is named after ''hylaea'' ("forest" in Greek), the term used by Humboldt for the lowland South American rainforests that are the main habitat of the genus. The genus currently comprises the following species: * '' Hylaeamys acritus'' * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys
''Hylaeamys'' is a genus of South American oryzomyine rodents found principally in humid forested areas east of the Andes. The species in this genus have historically been placed in ''Oryzomys''. They are most closely related to ''Euryoryzomys'', ''Transandinomys'', '' Nephelomys'', '' Oecomys'', and ''Handleyomys'', and most closely resemble species of the former two genera. They are distinguished from members of ''Euryoryzomys'' by all-dark or indistinct two-tone tail coloration (as opposed to the distinct two-tone tail coloration of ''Euryoryzomys''), from members of ''Transandinomys'' by having shorter whiskers above their eyes that do not extend posteriorly behind their ears, and in both cases by differences in carotid circulation. The genus is named after ''hylaea'' ("forest" in Greek), the term used by Humboldt for the lowland South American rainforests that are the main habitat of the genus. The genus currently comprises the following species: * '' Hylaeamys acritus'' * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Megacephalus
''Hylaeamys megacephalus'', also known as Azara's broad-headed oryzomys or the large-headed rice rat, is a species of rodent in the genus ''Hylaeamys'' of family Cricetidae, of which it is the type species. It is found mainly in lowland tropical rainforest from its type locality in Paraguay north through central Brazil, French Guiana, Guyana, Suriname, and Venezuela onto Trinidad and Tobago. To its west and east, other closely related species of ''Hylaeamys'' are found: '' H. perenensis'' in western Amazonia, '' H. acritus'' in Bolivia, and '' H. laticeps'' and '' H. oniscus'' in the Atlantic Forest of eastern Brazil. Taxonomy It was first described by Spanish naturalist Félix de Azara. Based on his description, several names were given to the animal, including ''Mus megacephalus'' Fischer, 1814 and ''Mus capito'' Olfers, 1818, both of which were largely forgotten for over a century. When ''capito'' was rediscovered in 1960, it came in use (as ''Oryzomys capito'') for a "sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Laticeps
''Hylaeamys laticeps'', also known as the Atlantic Forest oryzomysMusser and Carleton, 2005 or the large-headed rice rat, is a species of rodent in the family Cricetidae. The rodent is endemic to the Atlantic Forest region of southeastern Brazil. The taxonomic history of ''Hylaeamys laticeps'' has been complex, and the name ''laticeps'' has been used for various members of the genera '' Cerradomys'', '' Euryoryzomys'', '' Transandinomys'' and ''Hylaeamys'' at different times. Until 2006, it was classified in the genus ''Oryzomys ''Oryzomys'' is a genus of semiaquatic rodents in the tribe Oryzomyini living in southern North America and far northern South America. It includes eight species, two of which—the marsh rice rat (''O. palustris'') of the United States and ...'' as ''Oryzomys laticeps''. The species ''Oryzomys seuanezi'' is now a junior synonym of ''H. laticeps''.Weksler, Percequillo and Voss, 2006 References Literature cited *Musser, G. G. and M. D. Carlet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Tatei
''Hylaeamys tatei'', also known as Tate's oryzomysMusser and Carleton, 2005 or Tate's rice rat, is a South American rodent species of the family Cricetidae. It is known only from the eastern foothills of the Andes in central Ecuador, where it has been found at elevations from 1130 to 1520 m. ''H. tatei'' is most closely related to '' H. yunganus'', which occurs throughout Amazonia. The species is found in tropical rainforest and is terrestrial and probably nocturnal. It is named after American zoologist George Henry Hamilton Tate George Henry Hamilton Tate (April 30, 1894 – December 24, 1953) was a British-born American zoologist and botanist, who worked as a mammalogist for the American Museum of Natural History in New York City. In his lifetime he wrote several book .... References Literature cited * * * Mammals of Ecuador Hylaeamys Mammals described in 1998 Taxa named by Michael D. Carleton {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Yunganus
''Hylaeamys yunganus'', also known as the Amazonian oryzomysMusser and Carleton, 2005 or Yungas rice rat, is a species of rodent in the genus ''Hylaeamys'' of family Cricetidae. It is found in lowland tropical rainforest throughout Amazonia, in northeastern Bolivia, eastern Peru, eastern Ecuador, southeastern Colombia, southern Venezuela, Guyana, Suriname, French Guiana, and northern Brazil. A closely related species, ''Hylaeamys tatei'', occurs only in a small area in eastern Ecuador. Both were previously placed in ''Oryzomys ''Oryzomys'' is a genus of semiaquatic rodents in the tribe Oryzomyini living in southern North America and far northern South America. It includes eight species, two of which—the marsh rice rat (''O. palustris'') of the United States and ...''. References * * Hylaeamys Rodents of South America Mammals of Bolivia Mammals of Brazil Mammals of Colombia Mammals of French Guiana Mammals of Guyana Mammals of Peru Mammals of Suriname Mam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transandinomys
''Transandinomys'' is a genus of rodents in the tribe Oryzomyini of family Cricetidae. It includes two species—'' T. bolivaris'' and '' T. talamancae''—found in forests from Honduras in Central America south and east to southwestern Ecuador and northwestern Venezuela in northern South America. Until 2006, its members were included in the genus ''Oryzomys'', but phylogenetic analysis showed that they are not closely related to the type species of that genus, and they have therefore been placed in a new genus. They may be most closely related to genera like ''Hylaeamys'' and '' Euryoryzomys'', which contain very similar species. Both species of ''Transandinomys'' have had eventful taxonomic histories. ''Transandinomys bolivaris'' and ''T. talamancae'' are medium-sized, soft-furred rice rats. The upperparts—brownish in ''T. bolivaris'' and reddish in ''T. talamancae''—are much darker than the whitish underparts. Both species are characterized by ver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Oniscus
''Hylaeamys oniscus'', the sowbug rice rat, is a rodent species in the family Cricetidae. It was formerly placed in the genus ''Oryzomys'' as ''Oryzomys oniscus''. It occurs only in northeastern Brazil. It is close to ''Hylaeamys laticeps ''Hylaeamys laticeps'', also known as the Atlantic Forest oryzomysMusser and Carleton, 2005 or the large-headed rice rat, is a species of rodent in the family Cricetidae. The rodent is endemic to the Atlantic Forest region of southeastern Brazil ...'', which occurs further south in Brazil, and the two have been considered to be the same species. References Hylaeamys Rodents of South America Mammals of Brazil Endemic fauna of Brazil Mammals described in 1904 Taxa named by Oldfield Thomas {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Acritus
''Hylaeamys acritus'', formerly ''Oryzomys acritus'', is an oryzomyine rodent of the family Cricetidae. The name is derived from the Greek word ακριτος 'confused, doubtful', because it could easily be confused with species such as ''H. megacephalus'' and ''Euryoryzomys nitidus''. It is known only from northeastern Bolivia; its type locality is within Noel Kempff Mercado National Park. The rodent is terrestrial and is found in moist lowland semideciduous forest and savanna A savanna or savannah is a mixed woodland- grassland (i.e. grassy woodland) ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to .... It has olive brown coloration on its back; the cheeks and flanks are amber, and the top of the head is dark. The coat is 9 mm long at the center of the torso. Chest fur between the front legs is thick and 3 to 4 mm long. Abdominal hairs are gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylaeamys Perenensis
''Hylaeamys perenensis'', formerly ''Oryzomys perenensis'', also known as the western Amazonian oryzomys, is an oryzomyine rodent of the family Cricetidae. It is found in western Amazonia (southeastern Colombia, eastern Ecuador, eastern Peru, northern Bolivia, and western Brazil). It has an omnivorous An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nut ... diet and is nocturnal, terrestrial, and nonsocial. It is commonly found along rivers. References * * Hylaeamys Rodents of South America Fauna of the Amazon Mammals described in 1901 Taxa named by Joel Asaph Allen {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelomys
''Nephelomys'' is a genus of South American oryzomyine rodents found in the Andes from Bolivia to Venezuela, with a westward extension into the mountains of Costa Rica. Its generic name is derived from the Ancient Greek word ''nephelê'' "mist", referring to the cloud forest habitat of the members of the genus. The species in this genus have historically been placed in ''Oryzomys'', but in 2006, Brazilian zoologist Marcelo Weksler and coworkers described it as a separate genus, because it is not closely related to the type species of ''Oryzomys''.Weksler, 2006 They are most closely related to other members of clade B, including ''Euryoryzomys'', ''Transandinomys'', '' Hylaeamys'', '' Oecomys'', and ''Handleyomys'', with some weak evidence supporting a sister-group relationship to ''Transandinomys''.Weksler et al., 2006, p. 20 ''Oryzomys'' appears in a different part of the oryzomyine evolutionary radiation, perhaps close to ''Holochilus'' and related genera. ''Nephelomys'' spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryzomyini
Oryzomyini is a tribe of rodents in the subfamily Sigmodontinae of the family Cricetidae. It includes about 120 species in about thirty genera,Weksler et al., 2006, table 1 distributed from the eastern United States to the southernmost parts of South America, including many offshore islands. It is part of the clade Oryzomyalia, which includes most of the South American Sigmodontinae. The name ''Oryzomyini'' derives from that of its type genus, ''Oryzomys'', which means "rice rat" or "rice mouse". Many species are also known as rice rats. Taxonomy Contents of Oryzomyini An oryzomyine group was first envisaged by Oldfield Thomas in the early 20th century. He defined it to include pentalophodont species, which have a mesoloph(id) on the upper and lower molars, with a long palate (extending past the third molars). Thomas included ''Oligoryzomys'', ''Oecomys'', and ''Oryzomys'' (which included many species now in other genera), as well as '' Rhagomys'', which is currently classified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euryoryzomys
''Euryoryzomys'' is a genus of rodents in the tribe Oryzomyini of family Cricetidae. It includes six species, which are distributed in South America. Until 2006, its members were included in the genus ''Oryzomys'', but they are not closely related to the type species of that genus, and therefore they were placed in a new genus. They are most closely related to genera like ''Hylaeamys'' and ''Transandinomys''; many members of these genera were previously placed in a single species, known as ''Oryzomys capito''. The genus name, ''Euryoryzomys'', combines the name "''Oryzomys''" with the Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ... word ''eurus'' "broad", referring to the broad range in distribution of the genus. It includes the following species: * '' Euryoryzomys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |