i82 THE LOWER PRIMATES 



LEVEL OF THE ANTERIOR COALMISSURE (FIG. 90) 



At the level of the anterior eommissure (AC) is ilhistrated the anterior 

 extremity of the optie thalamus and a portion of the tubercuhmi anticum 

 thalami (NMt). Lateral to the thalamus is a dense mass of iiJDers repre- 

 senting the internal capsule ( Cin ), hiteral to which is a portion of the corpus 

 striatum, the k'nticuiar nucleus ( Len). 



