Plate L 



Comparative Series: Interior of the Brain-case of Primates seen from above, to show especially the Endocranial Openings 



of the Internal Carotid Artery 



All figures natural size. 



Lemur varius. Amer. Mus. No. 14024. The anterior end of the tunnel for the arteria promontorii is indicated by the bristle at the 

 left side of the sella turcica. The endocranial course of the arteria stapedia is indicated by the bristle on the right side on the medial 

 wall of the brain-case. (See page 174). 



Propithecus coquerelli. Amer. Mus. No. 31255. The courses of the arteria promontorii and art. stapedia are indicated by the 

 bristles. (See page 175). 



Perodicticus potto. Amer. Mus. No. 15972. The anterior branch (art. promontorii?) enters the brain-case through the prominent 

 foramen in front of the bulla. 



Alouatta sp. Amer. Mus. No. 14660. The internal carotid enters the brain cavity through the carotid groove on the anteromedial 

 extension of the periotic. The bristle leads through the hiatus Faloph to the canalis facialis (aqueductus Falopii). 



