Euneomys fossor (Thomas, 1899) . Ann. Mag. Nat. Hist., ser. 7, 4:280.

TYPE LOCALITY: Argentina, "Prov. Salta."

DISTRIBUTION: Known only from the type locality, which is questionable as Euneomys is otherwise unrecorded this far north in Argentina (see Mares et al., 1989b).

COMMENTS: Status doubtful—"the name Chelemyscus fossor should be attached to an appropriate species of Euneomys by some future revisor" (Pearson, 1984:231).