Plaie IV. 



Fig. 1. MiciiocoTYLE sEEASTis. MeclicUi sagittal section of the pharynx. 

 X 805 diam. 

 „ 2. MicRocoTYLE RETICULATA. Median portiou of a cross-scctiou of the 



body through about the middle of the pharynx, x 204 diam. 

 „ 3. The same. Horizontal (optic) section of the pharynx, showing the 



muscles ; from a small individual, x 305 diam. 

 „ 4. MicRocoTYLE S E 13 A sJT I s. Longitudinal SGction of the ootyp, showing 



the shell-glands, x 305 diam. 

 „ 5. The SAME. One-half of the cross-section of the body just through the 



anterior end of the brain ; to show the nerve cells {((). x 305 diam. 

 ,, G. MicROcoTYLE FUSiFORMis. A cross-sectioH of the body at the level 



of the origin of the posterior nerves, x 305 diam. 

 „ 7. MicROCOTYLE GAUD AT A. Lateral portion of a cross-section of the 



body. X 305 diam. 

 „ 8. T H E s A M E. Median portion of a cross-section of the body through the 



region of the ovary. The yolk-duct was filled with yolk-cells, but these are 



not drawn in the figure, x 305 diam. 

 ,, 9. The SAME. A portion of the section of the ovary near the oviduct end. 



X 305 diam. 



