102 ILLINOIS BIOLOGICAL MONOGRAPHS [320 



PLATE VII 



Fig. 24. Ovarian complex, Cyclocoelum cuneaiutn, anterior view. X92. 



Fig. 25. Frontal section, showing structure of body wall. X 435. 



Fig. 26. Ovarian complex, Haemalotrephus similis, partial anterior view from above. X92. 



Fig. 27. Ovarian complex, Cyclocoelum pseudomicrostomum, dorsal view. X92. 



Fig. 28. Frontal section, anterior end of Haematotrephus similis. X145. 



Fig. 29. Drawing of wax reconstruction of anterior end of Cyclocoelum elongatum. X 108. 



