Mass: 28.5 g based on Pearson 1983 and Péfaur et al. 1979

Latitudinal range: -46.6° to -29.9°

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