_Sigmodon melanotis_ Bailey, Proc. Biol. Soc. Washington,
15:114, June 2, 1902, type from PAitzcuaro, 7,000 ft.,
MichoacAin.
_Range._--Central MichoacAin, as now known.
_Specimens examined_, 8: nos. 100623-100626, 52089-52092, distributed
by localities as follows: 2 mi. W PAitzcuaro (7,400 and 7,700 ft.), 2;
3-1/2 mi. S PAitzcuaro, 7,800 ft., 2; TancA-taro, 6,000 ft., 4.
_Remarks._--This species was taken along with the species _S.
hispidus_ two miles west of PAitzcuaro, and can be easily distinguished
from the latter by the dark reddish as opposed to grayish color of the
upperparts and by the shorter hind foot (less instead of more than
32.5 mm.).
=Sigmodon hispidus mascotensis= Allen