| Smoky grass mouse | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Akodon |
| Species: | A. fumeus |
| Binomial name | |
| Akodon fumeus Thomas, 1902 | |
The smoky grass mouse (Akodon fumeus) is a species of rodent in the family Cricetidae. [2] It is found in Argentina, Bolivia and Peru.
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.
Akodontini is the second most speciose rodent tribe of the subfamily Sigmodontinae. It includes at least 106 living species in 19 genera and is distributed mainly in the southern half of South America, with only two genera extending into Guyana (Podoxymys) and Venezuela (Necromys). It also includes genera previously placed in tribe Scapteromyini. The following genera are now generally recognized:
The smoky shrew is a medium-sized North American shrew found in eastern Canada and the northeastern United States and extends further south along the Appalachian Mountains.
Akodon is a genus consisting of South American grass mice. They mostly occur south of the Amazon Basin and along the Andes north to Venezuela, but are absent from much of the basin itself, the far south of the continent, and the lowlands west of the Andes. Akodon is one of the most species-rich genera of Neotropical rodents. Species of Akodon are known to inhabit a variety of habitats from tropical and tropical moist forests to altiplano and desert. Fossils are known from the late Pliocene onwards.
Akodon azarae, also known as Azara's akodont or Azara's grass mouse, is a rodent species from South America. It is found from southernmost Brazil through Paraguay and Uruguay into eastern Argentina. It is named after Spanish naturalist Félix de Azara.
The cursor grass mouse or cursorial akodont, is a sigmodontine rodent from South America.
Lindbergh's grass mouse is a rodent species from South America. It is found in Brazil.
The montane grass mouse is a rodent species from South America. It is found in Argentina, Brazil, Paraguay and Uruguay.
Akodon aerosus, also known as the highland grass mouse or Yungas akodont, is a species of rodent in the family Cricetidae. It is found in the eastern Andes from eastern Ecuador through Peru into central Bolivia.
Akodon affinis, also known as the Colombian grass mouse or Cordillera Occidental akodont, is a species of rodent in the family Cricetidae. It is found only in the Cordillera Occidental of Colombia.
Akodon albiventer, also known as the white-bellied grass mouse or white-bellied akodont, is a species of rodent in the family Cricetidae. It is found in the Andean highlands from southeastern Peru to southwestern Bolivia, northwestern Argentina, and far northeastern Chile at elevations from 2400 m to over 5000 m.
The Bogotá grass mouse or Bogotá akodont, is a species of rodent in the family Cricetidae. It is found in the Andes eastern and central Colombia and northwestern Venezuela. Alavarado-Serrano and D'Elía (2013) have assigned the species to a new genus, Neomicroxus along with Neomicroxus latebricola.
Akodon boliviensis, also known as the Bolivian grass mouse or Bolivian akodont, is a species of rodent in the family Cricetidae. It is found in the Andes from southeastern Peru through Bolivia into northwestern Argentina.
Akodon budini, also known as Budin's akodont or Budin's grass mouse, is a species of rodent in the family Cricetidae. It is found in the Andes of northwestern Argentina and adjacent Bolivia. The species is named after Emilio Budin, an Argentine specimen collector who worked with Oldfield Thomas.
The intelligent grass mouse or Patagonian akodont is a species of rodent in the family Cricetidae. The species is found in Argentina and Chile.
The Altiplano grass mouse is a species of rodent in the family Cricetidae. It is found in Bolivia, and Peru.
Akodon spegazzinii, also known as Spegazzini's akodont or Spegazzini's grass mouse, is a rodent in the genus Akodon found in northwestern Argentina. It occurs in grassland and forest at 400 to 3,500 m above sea level. After the species was first named in 1897, several other names were given to various populations now included in A. spegazzinii. They are now all recognized as part of a single, widespread and variable species. Akodon spegazzinii is related to Akodon boliviensis and other members of the A. boliviensis species group. It reproduces year-round. Because it is widely distributed and common, Akodon spegazzinii is listed as "least concern" on the IUCN Red List.
The variable grass mouse is a species of rodent in the family Cricetidae. It is known only from Bolivia, where it is found at elevations from 400 to 3000 m.
The smoky mouse is a species of rodent in the family Muridae native to southeastern Australia. It was first described in 1934 and its species name is Latin for "smoky". As its name suggests, it is a grey-furred mouse, darker grey above and paler smoky grey below. Mice from the Grampians are larger and a darker more slate-grey above. It has a black eye-ring and dark grey muzzle. The feet are light pink, and the ears a grey-pink. The tail is longer than the mouse's body, and is pink with a brownish stripe along the top. Mice from east of Melbourne average around 35 grams and have 107 mm long bodies with 116 mm long tails, while those from the Grampians are around 65 grams and have 122 mm long bodies with 132 mm long tails.
Akodon caenosus is a rodent in the genus Akodon found in northwestern Argentina and south-central Bolivia. Since its description in 1918, it has been alternatively classified as a separate species or a subspecies of Akodon lutescens. The species Akodon aliquantulus, described from some very small Argentine specimens in 1999, is now recognized as a synonym of A. caenosus.
