Figure 4.

Winsurf reconstructions of the left middle ear cavities of Meriones unguiculatus, Desmodillus auricularis, Gerbillurus setzeri, Jaculus orientalis, Macroscelides flavicaudatus and Elephantulus rupestris, seen from approximately lateral views. The tympanic cavity (TC) is shaded in grey, the epitympanic recess (ER) in red, the dorsal mastoid cavity (DMC) in blue and the ventral mastoid cavity (VMC) in green. Only Meriones and Macroscelides have both mastoid cavities. Middle ear cavities are shown semitranslucent to reveal the inner ear (white) and middle ear ossicles (yellow). The tympanic membrane's pars tensa and pars flaccida are also shown, in translucent brown. Scale bar: 10 mm.