Gerbillus riggenbachi Thomas, 1903 . Novit. Zool., 10:301.

TYPE LOCALITY: Western Sahara (Rio de Oro) .

DISTRIBUTION: Western Sahara.

COMMENT: Considered a distinct species by Schlitter, 1976, Diss. Abstr. Int., 37(6), Lay et al., 1975, Z. Saugetierk., 40: 148, and Corbet and Hill, 1980:164; Corbet, 1978:122, and Petter, 1975, Part 6.3:8, included riggenbachi in pyramidum, without comment. May be conspecific with latastei; see Cockrum, 1977, Mammalia, 41:78.