— 155 — 



Fig. 2. Ceplialic extremity of the same species. 



Fig. 3. Caudal extremity of c? of the same species wiili bursa, 2 spi- 

 cula and gubernaculum. 



Fig. -I. Posterior end of spicula of the same species with bent hooks. 



Fig. 5. Caudal extremity of female with anus. 



Fig. 6. Diaphanocephaiiis costatus (Rud. 1819). General view of d"- 

 and $ in copula (magnif, X 6). 



Fig. 7. Cephalic extremity of cT of the same species. 



Fig. 8. Caudal bursa of male of the same species. 



Fig. 9. General view of c? of the same species. 



Fig. 10. Spicula of the same species with spirally twis<ed ends. 



Fig. 11. Canoe-shaped gubernaculum of the same species. 



TABLE III. 



Fig. 12. Ascaris euxina Linst. 1903. Cephalic extremity. 



Fig. 13. Tail of S' of same species. 



Fig. 14:. Tail of $ of same species. 



Fig. 15. Ascaris zebrae n. sp. (^ and $ in natur, size. 



Fig. 16. Dorsal lip of same species. 



Pig. 17. Tail of J' of same species with 2 spicula and a series of pa- 

 pillae. 



Fig. 18. Portion of cuticle of the caudal extremity of J" with a late- 

 ral and several submedial papillae. 



T A B L E IV. 



Fig. 19. Trispiculascaris heliciiia (M o 1. 1860). Dorsal lip. 



Fig. 20. Tail of c? with papillae, spiculae and gubernaculum. 



Fig. 21. Tail of $ with anus. 



Fig. 22. Onieoascaris chrysanthemoides n. g. n. sp. rf and $ in na- 

 tur. size. 



Fig. 23. View of dorsal lip from the exterior. 



Pig. 24. View of dorsal lip from the interior. 



Pig. 25. Caudal extremity of male with papillae, spicula and mosaic 

 drawing on the surface of the cuticle. 



Fig. 26. Part of the cuticle of the caudal extermity of the male with 

 the free end of the anterior preanal papilla, which has the aspect of a 

 double-flower. 



T A B L E V. 



Fig. 27. SiibiUura suctoria M o 11 n 1860. Cephalic extremity with ini- 

 tial part of the oesophagus (cf ). 



Fig. 28. Oesophagus of same species with bulb. On the sides of the 

 body there are alae {(^). 



Fig. 29. Tail of c? with papillae, sucker, spicula and gubernaculum. 



Fig. 30, Strongyluris brevicaudata Miill. 1894. Cephalic extremity of 

 the parasite. View from above. 



