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New World rats and mice
Rodents native to the Americas From Wikipedia, the free encyclopedia
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The New World rats and mice are a group of related rodents found in North and South America. They are extremely diverse in appearance and ecology, ranging from the tiny Baiomys to the large Kunsia. They represent one of the few examples of muroid rodents (along with the voles) in North America, and the only example of muroid rodents to have made it into South America.
The New World rats and mice are often considered part of a single subfamily, Sigmodontinae, but the recent trend among muroid taxonomists is to recognize three separate subfamilies. This strategy better represents the extreme diversity of species numbers and ecological types.
Some molecular phylogenetic studies have suggested that the New World rats and mice are not a monophyletic group, but this is yet to be confirmed. Their closest relatives are clearly the hamsters and voles.
The New World rats and mice are divided into 3 subfamilies, 12 tribes, and 84 genera.
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Classification
- Family Cricetidae - hamsters, voles, and New World rats and mice
- Subfamily Tylomyinae
- Subfamily Neotominae
- Subfamily Sigmodontinae
- Rhagomys incertae sedis
- Tribe Oryzomyini
- Tribe Thomasomyini
- Tribe Wiedomyini
- Tribe Akodontini
- Tribe Phyllotini
- Tribe Sigmodontini
- Tribe Ichthyomyini
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References
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