Plate XIII 



Fig. 65 Taken from section of eye shown in Fig. 11. Shows retinuls with their distal processes 

 extending to hypodermis. Shows early pigment deposition in proximal processes. Hypodermal cells 

 shown in outline. X 1350. 



Fig. 66 Taken from section of eye shown in Fig. 11. Ommatidia completely differentiated except 

 spindle shaped enlargement of the rhabdom. Distal ends of cones not yet differentiated completely. 

 Cone at left of figure cut obliquely. Retinula not altogether normal in their distribution. X 1350. 



Fig. 67 Regenerated ommatidium from eye. Shown in Fig. 11. Rhabdom still not quite normal 

 in appearance. X 1350. 



Fig. 68 Sections from an eye shown in Fig. 15. Shows differentiated hypodermis and retinular 

 nuclei beginning to assume their definitive position. Hypodermis and retinulae both show dividing 

 nuclei. X 1350. 



