Abrawayaomys Souza Cunha and Cruz 1979

Abrawayaomys Souza Cunha and Cruz 1979, Bol. Mus . Biol. Prof. Mello-Leitao Zool., 96: 2.

Type Species: Abrawayaomys ruschii Cunha and Cruz 1979

Species and subspecies: 1 species:

Species Abrawayaomys ruschii Cunha and Cruz 1979

Discussion: Sigmodontinae incertae sedis. Diagnostic traits seem to combine aspects of Neacomys, Oryzomys, and Akodon, and both Reig (1987) and Smith and Patton (1999) acknowledged the enigmatic affinities of Abrawayaomys as uncertain. Certain cranial features of Abrawayaomys suggest an archaic "thomasomyine," perhaps distantly related to the other endemic genera of SE Brazil (e.g., see comments under Delomys).