Plate XVIII. 



M O N C 1 Y L E I J I JI A E . 



Fig. 1. A portion of the cross-section of the body through the level at which the 



oviclact is continued into the ootyp. x 305 diani. 

 „ 2. Median portion of a cross-section of the body through the ootyp. x 204 



diam. 

 „ 3. A portion of the median sagittal section of the body through the region of 



the common genital opening. x 20-1 diam. ,r, a circular vessel whicli 



surrounds the bulbus ejacuUttoriHs. 



„ 4. An almost median sagittal section of tlie anterior part of the body. x 73 



diam. a, ventral lip. 

 „ 5. Cross-section of the body through the beginning of the intestinal trunks 



x204 diam. 

 „ G. Section of the ovary near the oviduct end. x 305 diam. 

 ,, 7. Chitinous penis, x 305 diam. 

 „ 8. Cross-section of the pharynx, x 204 diam. 



