scagliarum) is found in eastern and central parts of Buenos Aires Province, Argentina, and the other (ssp.

The dorsal surface is dark brown to brownish-black, the individual hairs having black bases and tips and pale central portions, giving the pelage an "agouti" appearance.

The cheeks and flanks are tinged with orange or buff and the underparts are greyish, the hairs having yellowish tips.

[3] The dark bolo mouse is mainly diurnal and normally lives on the ground surface although it sometimes undertakes some burrowing activity.

It is fairly common where it does occur, but seems not to tolerate disturbance to the meadows areas where it lives.