Fic. 20.— Brain oF 
AMMOCG@TES, 
A, dorsal view; B, late- 
ral view; C, ventral 
view. 
etise 
AEA, 
ISA 
C.E.R., cerebral hemi- 
spheres; G.H.R., 
right ganglion habe- 
nule; PN., right 
pineal eye; CH,, 
CH;,, choroid plex- 
uses ; I.-XIT. cra- 
nial nerves; C.P., 
Conus spost-commis- 
suralis. 
