Plate XIX. 



Calicotyle Mitsukukii. 



Fig. 1. The whole worm viewed from the ventral side. 

 „ 2. Tlie same viewed from the dorsal side, x ahout 5 diam. 

 „ 3. The same viewed from the ventral side, x about 5 diam. 

 „ 4. Foremost portion of the body, viewed from the ventral side, x 29 diam. 

 „ 5. Hook of the same very nearly in profile, x 73 diam. 

 „ 6. Saggital median section of the posterior sucker, x 29 diam. 

 „ 7. Sagittal median section of the body through the region of the ootyp. x 73 



diam. 

 „ 8. Sagittal median section of the foremost portion of the body ; composed 



from four sections, x 73 diam. 

 „ 9. A small portion of the mesenchyma with vitellarium ; from a sagittal section. 



X 305 diam. 

 „ 10. Terminal portion of the male genital duct viewed from the ventral side. 



X 204 diam. 

 „ 11. An almost median sagittal section of the penis bulb with the basal part of 



the chitinous penis. x 805 diam. The two large cells drawn below are 



probably the prostate glands. 

 „ 12. Cross-section of the glandular portion of the vaginal canal, x 305 diam. 

 „ 18. Ovarian ova from the oviduct portion of the ovary, x 805 diam. 



Calicotyle Kkoyeei. 

 Fig. 14. Hook in profile, x 204 diam. Drawn for the sake of comparison. 



