PLATE 25. 



Sections of Chaetodermaattcnuat a. X 33. 



1. Section tlirougli brain. 



2. Section tliroufili radiila. 



3. Section througli junction of stomach and intestine. 



4. Section tlirough suprarectal conunis.sure. 



5. Section tliroiigli outlet of coelonioduct (pores omitted in figure), 

 (i. Sectiim llirougli posterior end of jjrothorax. X 00. 



7. Hypodermis, showinj;; gland cells and attached fibres. X 555. 



8. Section through heart. 



Fig 

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 Figs. 9, 10. Two successive sections through the subradular ganglion and connectives. X 135. 



