Oryzomys maracajuensis Langguth and Bonvicino 2002
Oryzomys maracajuensis Langguth and Bonvicino 2002, Arq. Mus . Nac., Rio de Janeiro, 60: 292.
Type Locality: Brazil, Matto Grosso do Sul State, Municipality Maracaju, Fazenda da Mata; 21º38′S, 55º09′W.
Vernacular Names: Maracaju Oryzomys.
Distribution: Definitely known only from the type locality, S Brazil, but probably occurs in E Paraguay; limits unknown.
Discussion: O. subflavus species group. Similar to O. subflavus but larger, with longer fur and different karyotype (2n = 56, FN = 58); collected sympatrically with O. scotti .