Abundance: 0.42 to 9.64% (median 1.94%)

Latitudinal range: -14.8° to -4.0°

Habitats: tropical/subtropical dry broadleaf forest (2), tropical/subtropical moist broadleaf forest (4), tropical/subtropical savanna (2)

Found in 8 samples

Bolivia: El Refugio Huanchaca Biological Station, Los Fierros Camp (LFF)

Brazil: Araguaia National Park (grasslands)

Peru: Iquitos–Nauta Highway, Cocha Paujil (traps), Reserva Nacional Allpahuayo-Mishana (Sherman traps), Reserva Nacional Allpahuayo-Mishana (Tomahawk traps), Reserva Nacional Allpahuayo-Mishana (Victor traps)

♂ ear length	14 mm	N = 1	Osgood 1916
ear length	14.49 mm	N = 67	Olds and Anderson 1987
♂ head and body length	104 mm	N = 1	Osgood 1916
♂ hind foot length	26 mm	N = 1	Osgood 1916
hind foot length	22.81 mm	N = 67	Olds and Anderson 1987
hind foot length	21.68 mm	N = 20	Olds and Anderson 1987
hind foot length	21.37 mm	N = 26	Olds and Anderson 1987
♂ skull length	26.8 mm	N = 1	Osgood 1916
skull length	23.54 mm	N = 67	Olds and Anderson 1987
skull length	23.79 mm	N = 20	Olds and Anderson 1987
skull length	23.27 mm	N = 26	Olds and Anderson 1987
♂ skull width	13.5 mm	N = 1	Osgood 1916
skull width	12.28 mm	N = 67	Olds and Anderson 1987
skull width	12.40 mm	N = 20	Olds and Anderson 1987
skull width	11.86 mm	N = 26	Olds and Anderson 1987
♂ tail length	111 mm	N = 1	Osgood 1916
tail length	101.00 mm	N = 67	Olds and Anderson 1987
tail length	95.44 mm	N = 20	Olds and Anderson 1987
tail length	101.69 mm	N = 26	Olds and Anderson 1987
♂ total body length	215 mm	N = 1	Osgood 1916
total body length	184.88 mm	N = 67	Olds and Anderson 1987
total body length	185.00 mm	N = 20	Olds and Anderson 1987
total body length	179.77 mm	N = 26	Olds and Anderson 1987
♂ upper tooth row length	3.6 mm	N = 1	Osgood 1916
upper tooth row length	3.10 mm	N = 67	Olds and Anderson 1987
upper tooth row length	3.07 mm	N = 20	Olds and Anderson 1987
upper tooth row length	3.14 mm	N = 26	Olds and Anderson 1987

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