

ZOOLOGY FOR MEDICAL STUDENTS CHAP. 



la and, it may be, inwards as well. The cuticle is thus 



r 



R. 



nf. 



inn 



FIG. 1 06. 



; tnrc df (lie simple (A) and radiate (B) types of eye of the Arthropoda. 

 niie cone; ep, epidermis ; /, lens ; n.f, nerve fibre ; p, pigment-roll ; R, retinal 

 ( HI ; r, . 



up into numerous little lenses the function of which apparently 



