218 



COMPARATIVE ANATOMY 



-3* 



VH- 



B 





-/ 



Hi 



va+m- 



& 



Met 



C.p Mil //// 



it* i h m 



Bol 



c^^v 



I ^ri <\^\MX 



X x 



R 



K 

 FIG. 166. BRAIN OF Hatteria punciata. A, dorsal ; B, ventral ; and C, 



lateral view. 



Bol, olfectory bulb ; Ch, optic chiasma ; GHS, cerebral peduncles ; G.p, pineal 

 bc/dy, shown in C continuous with the parietal eye (Pa), and only indicated 

 diagrammatical!}' in A ; h, small elevation in front of the cerebellum ; HH, 

 cerebellum ; Hyp, hypophysis ; Inf, infundibulum ; Lp, process of the hemi- 

 sphere representing a hippocampal lobe ; between Lp and GHS is adeep groove 

 (fovea limbica) between the olfactory lobe and pallium ; Med, spinal cord ; 

 MH, optic lobes ; NH, medulla oblongata ; Nopt, optic nerve ; I? 1 , curved 

 ridge at the base of the optic lobe ; Tr, optic tract ; VH, cerebral hemi- 

 spheres ; I- XII, cerebral nerves. 



