Mass: 42.4 g based on Cameron and Spencer 1983

Abundance: 0.03 to 59.02% (median 2.28%)

Latitudinal range: 16.7° to 38.9°

Habitats: (10), temperate broadleaf/mixed forest (1), temperate coniferous forest (1), temperate savanna (1), temperate wetland (3), tropical/subtropical dry broadleaf forest (1), tropical/subtropical moist broadleaf forest (1)

Found in 18 samples

Belize: Cockscomb Basin Forest Reserve (old field), Cockscomb Basin Forest Reserve (dry, open woodland)

Mexico: Cueva de Abra (Late Pleistocene)

United States: Bob White Memorial Wetlands Research and Teaching Station, Park Ranger Station No. 1, Croatan National Forest (open canopy pine plantation), Rockefeller State Wildlife Refuge and Game Preserve, Memphis, Kemper County, Ardis (Late Pleistocene), Saber-tooth Cave (Late Pleistocene), Golf Course (Late Pleistocene), Croley-Evans (Holocene), Watson Brake (3.2 mm fraction) (Holocene), Scovill (Holocene), Taylor Bayou (north bank) (Late Pleistocene), Meyer Cave (Holocene), Schulze Cave (layer C1) (Late Pleistocene)

♀ body mass	37.08 g	N = 114	Cameron and Spencer 1983
♂ body mass	45.86 g	N = 196	Cameron and Spencer 1983
♂ hind foot length	35 mm	N = 6	Merriam 1901
♂ hind foot length	33 mm	N = 6	Merriam 1901
hind foot length	29 mm	N = 9	Merriam 1901
hind foot length	32.5 mm	N = 4	Merriam 1901
♂ tail length	151 mm	N = 6	Merriam 1901
♂ tail length	137 mm	N = 6	Merriam 1901
tail length	117 mm	N = 9	Merriam 1901
tail length	149 mm	N = 4	Merriam 1901
♂ total body length	295 mm	N = 6	Merriam 1901
♂ total body length	267 mm	N = 6	Merriam 1901
total body length	231 mm	N = 9	Merriam 1901
total body length	288 mm	N = 4	Merriam 1901

See also Oryzomys, Oryzomys alfaroi, Oryzomys angouya, Oryzomys capito, Oryzomys chapmani, Oryzomys couesi, Oryzomys longicaudatus, Oryzomys melanotis, Oryzomys nigripes, Oryzomys sp.