Plate XI. 



DiCLIDOPHOEA SESSILIS. 



Fig. 1. Cross-section of the body through the posterior part of the jphaiynx ; to 



show a pair of gigantic ganglionic cells {nerv. c). x 204 diam. 

 „ 2. A portion of a cross-section of the body two sections (each = 0.01 mm.) 



behind the one represented in fig. 1 ; to show the ganglionic cells (ueir. c.) 



at the root of the posterior nerves, x 204 diam. 

 „ 3. A small ventral portion of the right side of a cross-section of the body. 



X 305 diam. 

 „ 4. An almost median sagittal section of the body through the region of the 



common genital opening, x 204 diam. 

 „ 5. Median portion of a cross-section of the body through the recejitacuhim 



seininis at the level where it communicates with the oviduct, x 204 diam. 

 „ G. Diagonal muscular fibres, together with a few longitudinal fibres ; drawn 



from a specimen in toto. x 305 diam. 

 „ 7. Mesenchyma cells adjoining the oviduct end of the ovary, x 305 diam. 



Drawn from a specimen in toto. 



DiCLIDOPHORA ELONGATA. 



Fig. 8. Three lobes of the vitellarium. x 305 diam. 



