64 REFERENCES TO THE PLATES AND FIGURES. II. 



b. Gizzard. 



c. Intestine. 



d. Oviduct filled with ripe ova. 



e. Rectum. 



f. Anus. 



g. Tail. 



h. Enterobryus elegans. 

 i. Arthromilus cristatus. 

 Fig. 18. Anterior extremity of Thdastomum labiatum. 



a. The lobed lip. 



b. The buccal organ. 



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



a. Ovary. 



b. 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. 



g. Vagina. 



A. Generative aperture. 



Fig. 15. Tail of Streptostomum agile, with a growing thallus of Entcrobryus eleijans (). 

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



a. Intestine. 



b. Testicle. 



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



a. Intestine. 



b. Testicle. 



c. Penis. 



Fig. 18. Spennatophori of A. infecta. 



Fig. 19. One of the spiculae 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 maryinatus, magnified two diameters. 



a. Conglomerated salivary glands. 



b. Tubular salivary glands, at their terminal portion. 



c. (Esophagus. 



d. Pr^ventriculus. 



e. Biliary tubes. 

 / Fatty band. 

 g. Ventriculua. 



h. Large intestine. 



t. Rectum. 



Fig. 22. Young of Ascaris infecta. 

 Fig. 23. Young of Thelastomum attenuatum 



