1895.] 



BRAIN IN THE LEMTmS. 



145 



join or nearly join above. There are faintly marked parieto- 

 occipital fissures. 



Fig;. 2. 

 A " B 



Brain oi PerodicUcus potto. 



A, dorsal, B, ventral aspect ; p.s., presylyian fissure ; 

 other lettering as in fig. 1. 



§ The Brain of Loris gracilis. (Fig. 3.) 



The description of this little brain will not detain us long, as it 

 is, with the exception of Cheirogaleus, the simplest form of Lemmas 

 brain known to me. It is very rounded in form, a character 

 which also distinguishes Cheirogaleus. 



Fig. 3. 



Brain of Loris gracUis. 

 Lettering as in fig. 1. 



There are only three fissures plainly visible — the Sylvian, the 

 angular, and the antero-temporal. The angular fissure is of 

 moderate dimensions and is curved, the concavity being outwards. 

 The other fissures call for no particular comment. On one side of 

 the brain of one of the two specimens which I have is a very 

 short parieto-occipital fissure. I would point out, in criticism of 

 the use of intra-cranial casts, how totally my figure differs from 



Pkoc. Zool. Soc— 1895, No. X. 10 



