Wilfredomys Avila-Pires 1960
Wilfredomys Avila-Pires 1960, Bol. Mus . Nac., Nov. Ser., Rio de Janeiro, 220: 3.
Type Species: Thomasomys oenax Thomas 1928
Species and subspecies: 1 species:
Species Wilfredomys oenax (Thomas 1928)
Discussion: Sigmodontinae incertae sedis. Genus diagnosed to encompass another problematic thomasomyine-like species from the Atlantic Forest region; see Osgood (1933 b) and Pine (1980 b) for historical reviews of the generic affiliations of the type species. The categorical recognition of this taxon, conventionally treated as a subgenus of Thomasomys (e.g., Carleton and Musser, 1984; Corbet and Hill, 1991; Pine, 1980 b), will depend on phylogenetic studies involving other SE Brazilian endemics (also see comments under Delomys and Juliomys).