64 REFEREXCES TO THE PLATES AND FIGURES. 11. 



h. Gizzard. 



c. Intestine. 



(1. Oviduct filled with ripe ova. 



e. Rectum. 



f. Anus. 



g. Tail. 



li. Enterohryiis elcgiais. 



i. Aithroinitiis crislatus. 

 Fig. 13. Anterior extremity of Thdastomum labiatum. 



a. The lobed lip. 



h. The buccal organ. 

 Fig. 14. Portion of the female generative apparatus of Aicaris inftcUi. 



a. Ovary. 



6. 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. 



(J. Vagina. 



Ti. Generative aperture. 

 Fig. 15. Tail of Streptostomum agile, with a growing thallus of Euterobiijus elegons (a). 

 Fig. 16. Portion of the body of the male of Ascaris iufixta. 



a. Intestine. 



h. Testicle. 

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



a. Intestine. 



h. 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 Julus marginatus, magnified two diameters. 



a. Conglomerated salivary glands. 



h. 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 Ascaris infecta. 

 Fig. 23. Young oi 'Thelastomum attenuatum 



