246 



Fig. h. Drawn from a total preparation, x 20. 



Fig. 12. A, anterior segment with scolex. B, middle segment. 



C, posterior segments. x 100. 



Fig. 13. Combination figure of transverse sections, x 390. 



Fig. 14. Cross-section of a middle segment, x 390. 



Fig. 1 5. Cross-section of a posterior segment. x 390. 



Fig. 16. Oncosphere. x 390. 



Figs. 17—25. 



Hymenole pis trichorhynchus n. sp- 



Fig. 17. A specimen magnified 20 times. 



Fig. 18. Anterior segments with scolcx. x 140. 



Fig, 19. Segments from the middle parts, at the junction of the 



anterior slender parts with the posterior broader parts. 



x 140. 



Fig. 20. Posterior segments, x 140. 



Fig. 21. Scolex with fully protruded rostellnm. x 140. 



Fig. 22- A hook from unprotruded rostcllum. x 390. 



Fig. 23. Cross-section of a segment in which fertiliged eggs have 

 just appeared. x 390. 



Fig. 24. Cross-section of a posterior segment containing onco- 

 spheres, x 390. 



Fig. 2$. Cross-section of cirrus pouch, x 390. 



