410 F. L. LANDACRE 



EXPLANATION OF FIGURES 



82 is a reconstruction of the eighth, ninth and tenth ganglia of A. melas, 171 

 hours. 



83 is a reconstruction of the fifth, seventh and anterior portion of the eighth 

 ganglia of A. melas. 86 hours. The roots of the V and VII ganglia are slightly 

 schematized beyond their origin from the ganglia for the sake of clearness. 



