322 



E. J. Anderson, 



Tlie frontals are smaller. The parietal» large. The pineal 

 foramen is situated, apparently, between the pariteal and frontal, and 

 although this opening is in the parietal bone, its position is plainly- 

 suggestive of the fact that the parietal bones bear interesting relations 

 to the brain organs immediately behind the Epiphysis. 



Fig. 9. 



Nilelizard. 



Fig. 10. 

 Alligator. 



Belodon. Frontals seem large compared with parietals and in 

 Pelagosaurus the latter are small and fused as are the two frontals also. 



In Notosuchus terrestris (Cret.) the parietals are narrow and fused. 



Frontals broad and fused. Antero- posterior diameters of these 

 united bones equal. 



