64 REFEEENCES TO THE PLATES AND FIGURES. II. 



h. Gizzard. 



c. Intestine. 



d. Oviduct filled with ripe ova. 



e. Rectum. 



f. Anus. 



g. Tail. 



h. Enterohryus elegans. 



i. Arthromitus cristaHis. 

 Fig. 13. Anterior extremity of Thelastomum labialum. 



a. The lobed lip. 



J. The buccal organ. 

 Fig. 14. Portion of the female generative apparatus of Ascaris Inftcta. 

 ' a. Ovary. 



h. Pyriform commencement of the oviduct. 



c. Mass of ripe ova, viewed by reflected light. 



d. Termination of the anterior oviduct, in outline. 



e. Uterus, with an ovum at its termination, viewed by transmitted light. 

 / Spermatheca. 



(/. Vagina. 



h. Generative aperture. 

 Fig. 15. Tail of Strqitostomvm affile", with a growing thallus of Enterohryus eleyans (a). 

 Fif. 16. Portion of the body of the male of Ascaris Infccta. 



a. Intestine. 



h. Testicle. 

 Fig. 17. Posterior extremity of the male of A. infecta. 



a. Intestine. 



6. Testicle. 



c. Penis. 

 Fig. 18. Spermatophori of A. infecta. 

 Fig. 19. One of the spiculse of the penis of A. infecta. 



Fig. 20. Outline of the posterior extremity of A. infecta, exhibiting the ventral tubercles. 

 Fig. 21. Alimentary canal of Jidm marffinatus, magnified two diameters. 



a. Conglomerated salivary glands. 



6. Tubular salivary glands, at their terminal portion. 



c. Oesophagus. 



d. Proventriculus. 



e. Biliary tubes. 

 /. Fatty band. 

 g. Ventriculus. 



h. Large intestine. 



i. Rectum. 

 Fig. 22. Young of Aacarii infecta. 

 Fig. 23. Young of Thelastomum attenuatuvi- 



