THE BRAIN 



169 



T- ^ 



K A I 



Z2Z- 

 XI- 



iVM-— yj 



^; 



77 



mi 



-Me a, 



G.J, MH mi 



ChTrJnf Eyp SflF^ KXUH) 



Fig. 139. — Bkain of Hatteria punctata. (A, dorsal ; B, ventral ; and (', 



lateral view. ) 



VH, MH, HH, NH, as in Fig. 13S ; J/e(Z, spinal cord ; I-XII, cranial nerves ; 

 Lp, process of the hemisphere representing a hippocampal lobe; X.opf, 

 optic nerve ; Ch, optic cliiasma ; Tr, optic tract ; jvf, infundibiihim ; Hyp, 

 hypophysis ; G.p, pineal body, shown in C continuous with the parietal eye 

 (Pa), and only indicated diagrammatically in A ; B^, curved ridge at the 

 base of the optic lobe ; h, small elevation in front of the cerebellum. 



