Nesoryzomys darwini, also known as Darwin's nesoryzomys or Darwin's Galápagos mouse, is a species of rodent in the genus Nesoryzomys that lived on Santa Cruz Island in the Galápagos Islands. It was probably nocturnal and inhabited burrows or rock crevices under bushes. Only four specimens exist, collected by Frank Wonder between 12 and 16 January 1929. This extinction may have been caused by competition and disease created by the introduction of nonnative brown and black rats.
Oecomys auyantepui, also known as the Guianan oecomys and north Amazonian arboreal rice rat, is a species of rodent in the genus Oecomys from South America. It is found in Guyana, Suriname, French Guiana, and nearby regions of Venezuela and Brazil. It is an arboreal rodent known from the understory of primary rainforest, found at altitudes from sea level to 1100 m.
Oecomys bicolor, also known as the white-bellied oecomys or bicolored arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It has a wide distribution in the Amazon biome, occurring in northwestern Brazil, northern Bolivia, eastern Peru, eastern Ecuador, eastern Colombia, much of Venezuela, Guyana, Suriname, and French Guiana, and extends into eastern Panama, but it may contain more than one species.
Oecomys cleberi, also known as Cleber's oecomys or Cleber's arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. Known only from the Federal District of Brazil, its taxonomic status relative to O. concolor and O. paricola is unresolved.
Oecomys concolor, also known as the unicolored oecomys, unicolored rice rat, or unicolored arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It is found in tropical rainforest in the Amazon biome, but its range is poorly documented; it has been recorded in northwestern Brazil, southeastern Colombia, and southern Venezuela.
The mamore arboreal rice rat,, also known as the Mamore oecomys is an arboreal species of rodent in the genus Oecomys of family Cricetidae. Its distribution extends over much of Bolivia and into nearby Brazil and Paraguay. Although Oecomys has been recorded from Argentina, it is uncertain whether those records represent O. mamorae. It is found in a variety of habitats at elevations from 200 to 2100 m, where it feeds on fruit and green seeds.
Oecomys paricola, also known as the Brazilian oecomys, Brazilian arboreal rice rat, or South Amazonian arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It is found in central Brazil south of the Amazon, where it lives in lowland tropical rainforest.
Nesoryzomys indefessus, also known as the Santa Cruz nesoryzomys or Indefatigable Galápagos mouse, is a rodent of the genus Nesoryzomys of family Cricetidae from Galápagos Islands of Ecuador. It contains two subspecies: one formerly lived on Santa Cruz Island, but is now extinct, probably due to the introduction of black rats; and another that is still alive on Fernandina Island. The two are sometimes considered to be different species.
Nesoryzomys fernandinae, also known as the Fernandina nesoryzomys, Fernandina rice rat, or Fernandina Galápagos mouse, is a species of rodent in the genus Nesoryzomys of family Cricetidae. It is found only on Fernandina in the Galápagos Islands, which it shares with N. indefessus narboroughi. Its natural habitat is subtropical or tropical dry shrubland. The conservation status of this endemic species continues to be investigated.
Nesoryzomys indefessus narboroughi is a subspecies of Nesoryzomys indefessus, a rodent in the genus Nesoryzomys, from Fernandina Island in the Galápagos Islands. The only other subspecies occurred on Indefatigable Island, but is now extinct. Some consider the two to be distinct species, in which case the Fernandina form would be Nesoryzomys narboroughi. Another, larger, Nesoryzomys is also found on Fernandina—Nesoryzomys fernandinae.
Nesoryzomys swarthi, also known as the Santiago nesoryzomys or Santiago Galápagos mouse, is a species of rodent in the genus Nesoryzomys of family Cricetidae. It is found only on Santiago in the Galápagos Islands. Its natural habitat is subtropical or tropical dry shrubland.
Oecomys flavicans, also known as the tawny oecomys or yellow arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It is found in the mountains of northwestern Venezuela and nearby Colombia.
Oecomys phaeotis, also known as the dusky arboreal rice rat or dusky oecomys, is a species of rodent in the genus Oecomys of family Cricetidae. It is found on the eastern slopes of the Andes of Peru, at 1500 to 2000 m altitude.
Oecomys rutilus, also known as the reddish oecomys or red arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It is found in Guyana, Suriname, French Guiana, and nearby regions of Brazil and Venezuela.
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. 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.
Handleyomys alfaroi, also known as Alfaro's rice rat or Alfaro's oryzomys, is a species of rodent in the genus Handleyomys of family Cricetidae. It is found in Belize, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, and Panama. It was previously included in Oryzomys as Oryzomys alfaroi. Its natural habitats are subtropical and tropical lowland or montane dry forests at elevations ranging from sea level to 2500 m.
Aegialomys galapagoensis, also known as the Galápagos rice rat or Galápagos oryzomys, is a species of rodent in the family Cricetidae endemic to the Galápagos Islands.
Mindomys hammondi, also known as Hammond's rice rat or Hammond's oryzomys, is a species of rodent in the tribe Oryzomyini of family Cricetidae. Formerly considered to be related with Nectomys, Sigmodontomys, Megalomys, or Oryzomys, it is now placed in its own genus, Mindomys, but its relationships remain obscure; some evidence supports a placement near Oecomys or as a basal member of Oryzomyini.
Oecomys catherinae, also known as the Atlantic Forest oecomys, is a species of rodent in the genus Oecomys from eastern Brazil.
Hylaeamys tatei, also known as Tate's oryzomys 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.
