156 



EYES or CRUSTACEA. 



of action of the eyes of the Myriapods and as to their 

 internal structure, differs entirely from that of Graber. 



Fig. 105.— Leptudora byalina. 



The Etes op Crustacea. 



The eyes of many Crusta-ea are highly developed. 

 In the higher families (tlience named Podophthalmata, 



