192 



CHARLES R. ST()('KAi;r> AND A. L. JOHXSOX 



to the supraoccipital spine. The range of measurements (text- 

 fig. 39) is from 72 mm down to 26 mm or as 2.7:1. There is 

 a loose and irregular conformity between the curve of this 

 chart and that for the meatus to bregma measurements, with, 

 however, some fairly marked differences between adjacent 

 skulls which make it quite evident that there is only a slight 

 correlation between the two. The region of the skull posterior 



7o — 

 to — 



So— 



¥o=\ 



Jo 

 Zo 

 /0 



Text-figure 39. Sequence J. Auditory meatus to supraoccipital spine. Same 

 skull sequence' as text-figure 35. 



to the bregma is shown to be almost as variable among the 

 dog breeds as are the measurements from the meatus to 

 the nasion in the anterior region (compare text-figs. 36 and 

 '.VJ). These measurements are definitely confined to the 

 cranium, and the variations among them do not approach 

 in significance the wider differences found among the anterior 

 or facial dimensions of the skull. The most violent variations 

 and disharmonies to be found in the dog's skull occur anterior 

 to the nasion. 



