NERVOUS SYSTEM. VERTEBRATA. 



377 



It is extremely difficult to accurately determine the 

 pattern formed by the numerous sulci which indent the 

 neopallium. But we can certainly say that, however we 

 interpret such sulci as can be mapped out (figs. 216 and 

 217), their arrangement differs considerably from that of 

 the Lemurs and Apes. Jn the accompanying drawing, 

 a tentative interpretation of the sulci is attempted. 



Dr. Forsyth Major, Proc. Roy. Soc. vol. Ixii. 1898, p. 46. 



D. 545. A cast of the cranial cavity of an extinct Lemuroid 

 (Megaladapis madayascariensis) . 

 The general appearance of this brain is not unlike that 



Fig. 218. (x.) 



Fig. 219. (xf.) 



SULC. CENT 



SULC.INT. 



SULC.RECT. 

 / 



SULC. PAR. 



SYL.F. 



of Daubentonia, but the olfactory bulbs appear to be borne 

 on long stalks, a part only of which is represented in this 

 cast as a prominent rostrum. 



