List of sigmodontines
is a subfamily of mammals in the rodent family Cricetidae, which in turn is part of the Myomorpha suborder in the order Rodentia. Members of this subfamily are called sigmodontines or New World rats and mice and include grass mice and rice rats. They are found in South America and southern North America, primarily in forests, shrublands, and grasslands, though some species can be found in rocky areas and wetlands. They range in size from the small vesper mouse, at plus a tail, to the Magdalena water rat, at plus a tail. Sigmodontines generally eat vegetation, seeds, and insects, though some also eat fungi, crustaceans, or small fish. No sigmodontines have population estimates, but thirteen species are categorized as endangered, and two species—the fossorial giant rat and Zuniga's dark rice rat—are categorized as critically endangered. Ten species, including the genera Megalomys, Megaoryzomys, and Noronhomys, were driven extinct after 1500 due to the European colonization of the Americas and introduction of non-native rats, with some species surviving until the 1900s.
The 385 extant species of Sigmodontinae are divided into 84 genera, ranging in size from 1 to 42 species. Several extinct prehistoric sigmodontine species have been discovered, though due to ongoing research and discoveries, the exact number and categorization are not fixed.
Conventions
The author citation for the species or genus is given after the scientific name; parentheses around the author citation indicate that this was not the original taxonomic placement. Conservation status codes listed follow the International Union for Conservation of Nature Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the sigmodontine's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted. All extinct species, subspecies, or genera listed alongside extant species went extinct after 1500 CE, and are indicated by a dagger symbol: "".Classification
is a subfamily of the rodent family Cricetidae consisting of 385 extant species in 84 genera. These genera range in size from 1 to 42 species. Additionally, ten species, including the genera Megalomys, Megaoryzomys, and Noronhomys, were driven extinct after 1500 due to the European colonization of the Americas and introduction of non-native rats, with some species surviving until the 1900s. This does not include hybrid species or extinct prehistoric species.Subfamily Sigmodontinae
- Genus Abrawayaomys : one species
- Genus Abrothrix : eight species
- Genus Aegialomys : two species
- Genus Aepeomys : two species
- Genus Akodon : thirty-nine species
- Genus Amphinectomys : one species
- Genus Andalgalomys : two species
- Genus Andinomys : one species
- Genus Anotomys : one species
- Genus Auliscomys : three species
- Genus Bibimys : three species
- Genus Blarinomys : one species
- Genus Brucepattersonius : seven species
- Genus Calomys : thirteen species
- Genus Casiomys : six species
- Genus Cerradomys : four species
- Genus Chelemys : two species
- Genus Chibchanomys : two species
- Genus Chilomys : one species
- Genus Chinchillula : one species
- Genus Delomys : three species
- Genus Deltamys : one species
- Genus Drymoreomys : one species
- Genus Eligmodontia : four species
- Genus Eremoryzomys : one species
- Genus Euneomys : four species
- Genus Euryoryzomys : six species
- Genus Galenomys : one species
- Genus Geoxus : two species
- Genus Graomys : four species
- Genus Gyldenstolpia : one species
- Genus Handleyomys : two species
- Genus Holochilus : three species
- Genus Hylaeamys : eight species
- Genus Ichthyomys : four species
- Genus Irenomys : one species
- Genus Juliomys : two species
- Genus Juscelinomys : two species
- Genus Kunsia : one species
- Genus Lenoxus : one species
- Genus Loxodontomys : two species
- Genus Lundomys : one species
- Genus Megalomys : two species
- Genus Megaoryzomys : one species
- Genus Melanomys : three species
- Genus Microakodontomys : one species
- Genus Microryzomys : two species
- Genus Mindomys : one species
- Genus Neacomys : eight species
- Genus Necromys : nine species
- Genus Nectomys : five species
- Genus Neomicroxus : two species
- Genus Neotomys : one species
- Genus Nephelomys : seven species
- Genus Nesoryzomys : five species
- Genus Neusticomys : six species
- Genus Noronhomys : one species
- Genus Notiomys : one species
- Genus Oecomys : fifteen species
- Genus Oligoryzomys : nineteen species
- Genus Oreoryzomys : one species
- Genus Oryzomys : six species
- Genus Oxymycterus : seventeen species
- Genus Phaenomys : one species
- Genus Phyllotis : sixteen species
- Genus Podoxymys : one species
- Genus Pseudoryzomys : one species
- Genus Punomys : two species
- Genus Reithrodon : two species
- Genus Rhagomys : two species
- Genus Rheomys : four species
- Genus Rhipidomys : twenty-two species
- Genus Salinomys : one species
- Genus Scapteromys : two species
- Genus Scolomys : two species
- Genus Sigmodon : fourteen species
- Genus Sigmodontomys : one species
- Genus Sooretamys : one species
- Genus Tanyuromys : one species
- Genus Tapecomys : one species
- Genus Thalpomys : two species
- Genus Thaptomys : one species
- Genus Thomasomys : forty-two species
- Genus Transandinomys : two species
- Genus Wiedomys : two species
- Genus Wilfredomys : one species
- Genus Zygodontomys : two species
Sigmodontines