SEPTUM, HIPPOCAMPUS, PALLIAL COMMISSURES 



466 



Fig. 67 Section caudal to the genu. A small band of hippocampal cortex is 

 seen beneath the genu as in the rat. The sharp separation of the hippocampal 

 primordium from the parolfactory area is more clear in the rabbit than in most 

 mammals. 



Fig. 68 Section a short distance in front of the anterior commissure. Note 

 how the precommissural fibers in part contribute to the fornix superior and in 

 part enter the hippocampal primordium. 



Fig. 69 Section at the level of the neuroporic recess. The fornix columns 

 contribute to the fornix superior. The perforating fibers appear to enter the 

 cingulum. It is possible that they go to the hippocampus farther back. 



