Fig. 3 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. 3. Scatter plot of RW1 versus RW2 of the (A) ventral and (B) dorsal cranium of Meriones crassus Sundevall, 1842 and M. libycus Lichtenstein, 1823. Legends: ○ = M. crassus (other than Western Zagros), ● = M. crassus of Western Zagros, □ = M. libycus. Below: thin-plate spline deformation grids visualize shape variation as expressed by the first two RWs axes (grids represent shape difference between configurations corresponding to lowest and highest RW-values). For the numbering of landmarks, see Fig. 2.