Fig. 5 in Cranial phenotypic variation in Meriones crassus and M. libycus (Rodentia, Gerbillinae), and a morphological divergence in M. crassus from the Iranian Plateau and Mesopotamia (Western Zagros Mountains)

Fig. 5. Box-and-whisker plots of (A) skull size and (B) relative bulla size of the ventral cranium. The boxes indicate the 25–75 % quartiles; the whiskers represent the minimal and maximal values.