88 ILLINOIS BIOLOGICAL MONOGRAPHS [438 



EXPLANATION OF PLATE 



Figures 12 and 13. Andrya macrocephala (see also Plate I). 



Fig. 12. Uterus of ripe proglottid. 



Fig. 13. Section of scolex. 

 Figures 14 to 16. Andrya translucida. 



Fig. 14. Mature proglottid, dorsal view. 



Fig. 15. Mature proglottid, dorsal view ; ovary and shell gland omitted. 



Fig. 16. Mature proglottid, ventral view, showing ovary and uterus. 

 Fig. 17. Anoplocephala wimerosa. Mature proglottid, dorsal view. 

 Figures 18 to 21. Anoplocephala variabilis (see also Plate III). 



Fig. 18. Section of scolex in expanded condition. 



Fig. 19. Section of scolex in contracted condition. 



Fig. 20. Uterus of ripe proglottid. 



Fig. 21. Uterine embryo, middle membrane not represented. 



