Mus haussa (Thomas and Hinton, 1920) . Novit. Zool., 27:319.

TYPE LOCALITY: Nigeria, Farniso .

DISTRIBUTION: Records are from Senegal and S Mauritania through Mali, Ivory Coast, Burkina Faso, Ghana, S Niger, and Benin to N Nigeria; limits unknown.

COMMENTS: Subgenus Nannomys . Body size, pelage color and pattern, and other morphological traits of M. haussa are very similar to those of M. tenellus (Petter, 1963c, 1972a; Rosevear, 1969), and F. Petter (1969) came close to combining them. The relationship between M. haussa and M. tenellus needs to be assessed by systematic revision of the group.