BRAIN OF A FOSSIL UNGULATE. 



887 



surface of the brain of the Aard-Yark given by Elliot Smith 

 [4] be compared with text-fig. 156, the similarity will be seen to 

 be very striking. The detailed resemblances will be noticed below, 

 and they undoubtedly help to strengthen the evidence in favour 

 of a primitive Ungulate origin for the Tubulidentata — ^a view held 

 by Elliot Smith, Max Weber, and Lonnberg. 



Text-fi^. 156. 



Ventral view of bvain-cast of Anoplotherium, 



Lettering as in text-fig. 155, with addition of m.f., mastoid foramen ; 

 ol.tb., olfactory tubercle. 



Ventral Surface of Cerebrum, 



The whole of this region is well developed. This can be clearly 

 seen from text- fig. 156, for, seen from below, the pyriform lobes 

 almost completely conceal the neopallium — a part of which is 



