Photocytes 



Nerve 



Basophile Course granular 



eosinoph'ile 



Fig. 13.3. Light-Producing Cells or Photocytes of 



Chaetopterus variopedatus 



Section through the epidermis of the aliform notopodium. 



Fig. 13.4. Pelagic Shrimp {Systellaspis?) Discharging a 

 Luminous Cloud (after Beebe, 1934.) 



