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

Abundance: 0.38 to 100.00% (median 97.62%)

Latitudinal range: -31.5° to -29.9°

Habitats: desert/xeric shrubland (6) only

Found in 6 samples

Chile: Las Chinchillas Natural Reserve (equatorial-facing slopes, spring 1987), Colonia Alfalfares (25 May), Asentamiento Ceres (1 June), Asentamiento Ceres (2 June, 7:00 hours), Asentamiento Ceres (2 June, 23:00 hours), Asentamiento Ceres (3 June)

♀ 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 Oryzomys, Oryzomys alfaroi, Oryzomys angouya, Oryzomys capito, Oryzomys chapmani, Oryzomys couesi, Oryzomys melanotis, Oryzomys nigripes, Oryzomys palustris, Oryzomys sp.