834 



R. J. Anderson, 



point of contact between the anterior inferior angle of the parietal 

 and the sphenoid). One finds this separation in Hylobates Miilleri, 

 Semnopithecus obscurus, in some skulls of Semnopithecus entellus and 

 Macacus Cynomolgus also in Macacus rhesus and Cynocephalus for- 



Fig. 35, 

 Macacus nemestrinus. 



Fig. 36. 

 Macacus Rhesus. 



micarius. Owen mentions the case of a Boschman where the usually 

 parieto-sphenoidal articulation did not exist and cites another example, 

 but the variety is well known to human anatomists. Owen figures 

 a Chimpanzee without a parietal-sphenoid-suture. Flower thought 



Fig. 37. 

 Macacus Rhesus. 



Fig. 38. 

 Hylobates (Müller). 



that the separation of the parietal from the sphenoid was almost 

 always the case in Primates (Quadrumana). The rule holds for 

 Cynocephalus anubis, Cynocephalus Sphinx and Cynocephalus Niger 

 all of which have their parietals separated from the Alae of the 

 Sphenoids. The alisphenoids (Cartilaginous parts) as we know, lie 



