| Rhoads's Oldfield mouse | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Thomasomys |
| Species: | T. rhoadsi |
| Binomial name | |
| Thomasomys rhoadsi Stone, 1914 | |
Rhoads's Oldfield mouse (Thomasomys rhoadsi) is a species of rodent in the family Cricetidae. It is found only in Ecuador.
The rodent subfamily Sigmodontinae includes New World rats and mice, with at least 376 species. Many authorities include the Neotominae and Tylomyinae as part of a larger definition of Sigmodontinae. When those genera are included, the species count numbers at least 508. Their distribution includes much of the New World, but the genera are predominantly South American, such as brucies. They invaded South America from Central America as part of the Great American Interchange near the end of the Miocene, about 5 million years ago. Sigmodontines proceeded to diversify explosively in the formerly isolated continent. They inhabit many of the same ecological niches that the Murinae occupy in the Old World.
Thomasomys is a genus of rodent in the family Cricetidae, named after British zoologist Oldfield Thomas. Nuclear DNA sequence analysis has indicated that it is a sister taxon to Rhagomys. It contains the following species:
The beady-eyed mouse is a species of rodent in the family Cricetidae. It is found only in Ecuador.
The ashy-bellied Oldfield mouse is a species of rodent in the family Cricetidae. It is found in Colombia and Ecuador.
Daphne's Oldfield mouse is a species of rodent in the family Cricetidae. It is found in Bolivia and Peru.
The slender Oldfield mouse is a species of rodent in the family Cricetidae. It is found in Ecuador and Peru.
The woodland Oldfield mouse is a species of rodent in the family Cricetidae. It is found in Colombia and Venezuela.
The strong-tailed Oldfield mouse is a species of rodent in the family Cricetidae. It is found only in Peru.
Kalinowski's Oldfield mouse is a species of rodent in the family Cricetidae. It is found only in Peru.
The soft-furred Oldfield mouse is a species of rodent in the family Cricetidae. It is found in Colombia and Venezuela.
The distinguished Oldfield mouse is a species of rodent in the family Cricetidae. It is found only in Peru.
Thomas's Oldfield mouse is a species of rodent in the family Cricetidae.
Rosalinda's Oldfield mouse is a species of rodent in the family Cricetidae. It is found only in Peru.
Taczanowski's Oldfield mouse is a species of rodent in the family Cricetidae. It is found only in Peru.
The dressy Oldfield mouse is a species of rodent in the family Cricetidae. It is found only in Venezuela.
The wandering Oldfield mouse, also called the wandering thomasomys, is a species of rodent in the family Cricetidae. It has been found in both the Cordillera Oriental and Cordillera Occidental of the Andes in central and north central Ecuador, at elevations from 2400 to 3600 m. It has terrestrial habits, and has been found in cloud forest and areas of secondary vegetation. It was formerly considered a subspecies of T. cinereiventer.
Hudson's Oldfield mouse is a species of rodent in the family Cricetidae. It is known only from the Andes in southern Ecuador, where it has been found at an elevation of 3100 m. It was formerly considered a subspecies of T. gracilis. It is named after American zoologist Wilfred Hudson Osgood.
The large-eared Oldfield mouse is a species of rodent in the family Cricetidae. It is known only from a single locality in the Andes in north central Peru, in montane forest at an elevation of 3300 m. It has terrestrial habits and is sympatric with T. apeco.
The Popayán Oldfield mouse, also called the "Popayán thomasomys", is a species of rodent in the family Cricetidae. It is present in the Andes of southwestern and central western Colombia, at elevations from 1800 to 3200 m. It has been found in páramo, montane forest, and secondary forest. It was formerly considered a subspecies of T. aureus. T. nicefori, presently considered a synonym, will likely be raised to the status of a separate species. The specific name comes from the Colombian city of Popayán.
Thomasomys ucucha, also known as the ucucha thomasomys, is a rodent in the genus Thomasomys of the family Cricetidae. It is known only from high altitude forest and grassland habitats in the Cordillera Oriental of Ecuador. Seven other species of Thomasomys live in the same areas. First collected in 1903, T. ucucha was formally described as a new species in 2003 and most closely resembles T. hylophilus, which occurs further to the north. The species is listed as "vulnerable" in the IUCN Red List as a result of habitat destruction.
