EIGENMANN 



PLATE 23 



P 



- £ 



I 



X 





B 



Eye of an old Lucifuga, 94 mm. long. 

 A. Left eye-socket with contained eye and pigment-mass at its left. X 60. 

 B Part of same section, X 375, showing fibrillar network about eye. Eye a nodule 



of cells in which distinction can only be made between pigment and retina. 



Part of pigment mass at extreme left. (For right eye see plate 14 U). 



