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MR. A. H. GARROD ON THE ANATOMY OF TUPAIA. [Mar. 18, 



dromus, and Macroscelides, as figured by Dr. Peters l . It is broadest 

 a little behind its middle, from which it narrows gradually in front, 

 more rapidly behind, so as to be pyriform in general outline when 



Fig. 2. 



Brain of Tupaia belangeri; superior aspect. 



seen from above. No trace of any convolutions can be detected. 

 The olfactory lobes are considerable in size, longer than broad. 

 Each hemisphere is very slightly convex from before backwards, its 



Fig. 3. 



Brain of Tupaia belangeri ; mid-longitudinal section. 



outline forming the base of the triangular side view of the organ, 

 the two other sides of which are of nearly equal length, so that its 

 deepest part is at about its middle. 



The corpus callosum is thin and nearly straight. It continues 

 forward to within one sixth of the length of the hemisphere from its 



1 Eeise naeh MosBambique, 1852, pi. sxiv. figs. 10, 12, 13. 



