THE EVIDENCE OE THE ORGANS OE VISION 



77 



the right side. In connection with this is another eye-like organ — the 

 left or ventral pineal eye, — much more aborted, much less like an eye 

 than the dorsal one ; so also there are two bundles of peculiar fibres 



Fig. 31. — One op a Series op Horizontal Sections through the Head op 



Ammoccetes. 



/.;»., upper lip muscles ; m.c, muco-cartilage ; »., nose; na.c, uasal cartilage; pn., 

 right pineal eye and nerve; g.h.r., right ganglion habenuhe ; s.m., somatic 

 muscles; or., membranous wall of cranium; cli., choroid plexus; gl., glandular 

 substance and pigment filling up brain-case. 



called Meynert's bundles, which connect this region with the infra- 

 infundibular region of the brain ; of these, the right Meynert's bundle 



