.-r^-ir'- 





III/ 



Fig. 2\7 Drawing of the nerves and ganglia of the proboscis of L. marginatus. 

 Slightly diagrammatic. No structures shown in the proboscis but nerves and 

 ganglia. The drawing was made by Miss M. L. Moles from the first sketch taken 

 from the dissection. Much enlarged. 



471 



