Bolomys obscurus (Waterhouse, 1837) . Proc. Zool. Soc. Lond., 1837:16.

TYPE LOCALITY: Uruguay, Maldonado .

DISTRIBUTION: S Uruguay and EC Argentina.

SYNONYMS: benefactus.

COMMENTS: Type species of Cabreramys (Massoia and Fornes, 1967), considered a junior synonym of Bolomys by Reig (1987).