Fig. 4From: Macroanatomical investigations of the skulls of both genders of Heliosciurus gambianus (Gambian sun squirrel) and Funisciurus anerythrus (Thomas’s rope squirrel)Dorsal (a), lateral (b), ventral (c), occipital—showing foramen magnum (d) views of the skull, and dorsal view of the mandible of the male Funisciurus anerythrus. Skulls are similar to that of the Heliosciurus gambianus. Scale bars—0.5 cmBack to article page