Mass: 27.8 g based on Cortes et al. 1988, Cortés et al. 2000, Figueroa Rojas et al. 2003, Kelt 1994, Pearson 1983, and Péfaur et al. 1979

Abundance: 0.20 to 93.75% (median 13.21%)

Latitudinal range: -46.6° to -29.9°

Habitats: Mediterranean woodland (2), desert/xeric shrubland (3), temperate broadleaf/mixed forest (6), temperate savanna (2)

Found in 13 samples

Argentina: Estancia La Mimosa, East of Bariloche, Lanín National Park

Chile: Valle de la Picada (425 m), Fundo San Carlos de Apoquindo (September), General Carrera Lake (shrub-pasture), Burca, Fray Jorge National Park, Dichato, Melefquén (May), Melefquén (June), Asentamiento Ceres (25 May), Malleco National Reserve

body mass	23.9 g	N = 6	Cortes et al. 1988
body mass	27.5 g	N = 5	Cortés et al. 2000
body mass	25.5 g	N = 1	Figueroa Rojas et al. 2003
body mass	23.46 g	N = 20	Kelt 1994
♂ condyloincisive length	24.5 mm	N = 1	Thomas 1916
♂ ear length	16 mm	N = 1	Thomas 1916
ear length	15.95 mm	N = 20	Kelt 1994
ear length	15.03 mm	N = 34	Olds and Anderson 1987
♂ head and body length	100 mm	N = 1	Thomas 1916
♂ hind foot length	29 mm	N = 1	Thomas 1916
hind foot length	28.00 mm	N = 20	Kelt 1994
hind foot length	25.13 mm	N = 34	Olds and Anderson 1987
lower tooth row length	3.99 mm	N = 21	Kelt 1994
♂ skull length	27.5 mm	N = 1	Thomas 1916
skull length	25.44 mm	N = 21	Kelt 1994
skull length	25.01 mm	N = 34	Olds and Anderson 1987
skull width	12.90 mm	N = 21	Kelt 1994
skull width	13.17 mm	N = 34	Olds and Anderson 1987
♂ tail length	131 mm	N = 1	Thomas 1916
tail length	118.55 mm	N = 20	Kelt 1994
tail length	124.15 mm	N = 34	Olds and Anderson 1987
total body length	210.45 mm	N = 20	Kelt 1994
total body length	217.68 mm	N = 34	Olds and Anderson 1987
♂ upper tooth row length	3.8 mm	N = 1	Thomas 1916
upper tooth row length	3.86 mm	N = 21	Kelt 1994
upper tooth row length	3.46 mm	N = 34	Olds and Anderson 1987
♀ body mass	27.80 g	N = 58	Pearson 1983
♀ body mass	21.7 g	N = 21	Péfaur et al. 1979
♀ body mass	21.1 g	N = 9	Péfaur et al. 1979
♂ body mass	37.70 g	N = 54	Pearson 1983
♂ body mass	23.5 g	N = 15	Péfaur et al. 1979
♂ body mass	22.5 g	N = 10	Péfaur et al. 1979
♀ ear length	15.1 mm	N = 21	Péfaur et al. 1979
♀ ear length	15.1 mm	N = 9	Péfaur et al. 1979
♂ ear length	15.5 mm	N = 15	Péfaur et al. 1979
♂ ear length	14.9 mm	N = 10	Péfaur et al. 1979
♀ hind foot length	26.5 mm	N = 21	Péfaur et al. 1979
♀ hind foot length	24.1 mm	N = 9	Péfaur et al. 1979
♂ hind foot length	27.0 mm	N = 15	Péfaur et al. 1979
♂ hind foot length	24.2 mm	N = 10	Péfaur et al. 1979
♀ tail length	121.6 mm	N = 21	Péfaur et al. 1979
♀ tail length	111.1 mm	N = 9	Péfaur et al. 1979
♂ tail length	127.3 mm	N = 15	Péfaur et al. 1979
♂ tail length	114.1 mm	N = 10	Péfaur et al. 1979
♀ total body length	215.2 mm	N = 21	Péfaur et al. 1979
♀ total body length	197.8 mm	N = 9	Péfaur et al. 1979
♂ total body length	222.5 mm	N = 15	Péfaur et al. 1979
♂ total body length	199.5 mm	N = 10	Péfaur et al. 1979

See also Oligoryzomys, Oligoryzomys O. flavescens-O. fornesi, Oligoryzomys chacoensis, Oligoryzomys flavescens, Oligoryzomys fornesi, Oligoryzomys fulvescens, Oligoryzomys microtis, Oligoryzomys nigripes, Oligoryzomys sp., Oligoryzomys spp.