Authors report on a short survey of the Kounounkan Massif, some 90 km east of Conakry. Thirty three mammal species were recorded. Presence of some species, failure to record others and range extensions are discussed. Despite the short duration of the survey, the species of mammal confirmed to be at Kounounkan are almost exactly those which would be predicted on biogeographic grounds alone, indicating the site is little disturbed and that none of the larger and non-volant mammals (at least) have been locally extirpated by hunting or habitat destruction.