Walker: CEsophaoostomum AnosTOMi'M ; I.] 



[Phil. Journ Sci., VIII, B, No. G. 



Fi0. 1. Cephalic end of ynung rhabditiform larva, showing shape of oesophagus. X 350. 



Fig. 2. Body of a young rhabditiform larva, showing undulating course of intestinal tract. 



X 350. 





'^ig. 3. Young rhabditiform larva, showing posterior end of intestinal tract and anus, v 350. 



PLATE II. YOUNG RHABDITIFORM LARVA OF CESOPHAGOSTOMUM APIOSTOMUM 



WILLACH. 



