Abundance: 0.28 to 1.85% (median 0.89%)

Latitudinal range: -24.5° to -7.8°

Habitats: (1), tropical/subtropical moist broadleaf forest (2), tropical/subtropical savanna (1)

Found in 4 samples

Brazil: Pinkaití Research Station (ground), Alta Floresta (Sherman traps), Abismo Iguatemi (Late Pleistocene)

Peru: Aguas Claras Camp (traps)

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