THE CEPHALIC NEUROMERES. 



ol.m.n.* if'i 



83 



..^"l'._l^'~^^"^ *''°.™ *li.«_l^mal surface, showing on the left the 



per ones. N0I 

 ; nerve cells of the optic ganglia, op.g'. and"oIfacto*i^ 



•w. .scir=:tt-»: ri-s s-iri?~ 



lobes, ol. c> and ol. c'. 



