Acomys cineraceus Fitzinger and Heuglin, 1866 . Sitzb. K. Akad. Wiss. Wien, 54:573.

TYPE LOCALITY: WC Sudan, Doka, E Sennaar (Allen, 1939:364) .

DISTRIBUTION: From N Ghana and Burkina Faso through N Togo, N Benin, S Niger, and N Nigeria to C and S Sudan, N Uganda, and C and S Ethiopia (specimens in the National Museum of Natural History).

SYNONYMS: cinerascens, hawashensis, hystrella, intermedius, johannis, lowei, witherbyi .

COMMENTS: Subgenus Acomys . Dieterlen (in litt.) noted that A. cineraceus is a distinct species and one of four (A. wilsoni, A. percivali, and A. cahirinus) occurring in Sudan. Petter (1983) recognized witherbyi as a species, and reported that it coexists with a member of the cahirinus-dimidiatus complex in Sudan. In morphology, A. cineraceus is closely similar to A. kempi; systematic revision would reveal whether each is a species, or simply represents a population of one species.