1954. _Reithrodontomys megalotis hooperi_ Goodwin, Amer. Mus. Novit., 1660:1, May 25, type from Rancho del Cielo, 5 mi. NW Gomez Farias, 3500 ft., Tamaulipas. _Distribution in Tamaulipas._--Known only from type locality. =Reithrodontomys fulvescens=