Petromyscus barbouri Shortridge and Carter, 1938 . Ann. S. Afr. Mus., 32:288.
TYPE LOCALITY: South Africa, NW Cape Province, Little Namaqualand, Witwater, Kamiesberg, 3500-3800 ft .
DISTRIBUTION: Known only from Springbok and Kamiesberg regions and Loeriesfontein area in Little Namaqualand, NW Cape Province, South Africa (see map in Skinner and Smithers, 1990:315); limits unknown.
COMMENTS: Although listed as a subspecies of P. collinus by Meester et al. (1986), P. barbouri is separated from P. collinus not only by the diagnostic short and bicolored tail noted by Shortridge and Carter (1938), but by its smaller skull, relatively shorter rostrum, much shorter molar rows, and lack of postaxillary teats.