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Oryzomys
Oryzomys is a genus of semiaquatic rodents in the tribe Oryzomyini living in southern North America and far northern South America. It includes eight species, two of which—the marsh rice rat (O. palustris) of the United States and O. couesi of Mexico and Central America—are widespread; the six others have more restricted distributions. The species have had eventful taxonomic histories, and most species were at one time included in the marsh rice rat; additional species may be recognized...
11 branches of this genus, most-observed first · about 9 known species

Northeastern Marsh Rice Rat
speciesOryzomys palustris

Northwestern Marsh Rice Rat
speciesOryzomys texensis

Coues's Marsh Rice Rat
speciesOryzomys couesi

Mexican Marsh Rice Rat
speciesOryzomys mexicanus

White-bellied Marsh Rice Rat
speciesOryzomys albiventer
Gorgas's rice rat
speciesOryzomys gorgasi

Xochimilco Marsh Rice Rat
speciesOryzomys fulgens

Lower California Rice Rat
speciesOryzomys peninsulae

Tres Marías Rice Rat
speciesOryzomys nelsoni

Jamaican Rice Rat
speciesOryzomys antillarum
Thomas's rice rat
speciesOryzomys dimidiatus
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
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Every page naming Oryzomys in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 44445.