PLATE Q. 



Fig. 1. Alonella pulchella^ female. 



Fig. 2. " " reticulations. 



Fig. 3. *' " post-abdomen. 



Fig. 4. Alona modesta^ male. 



Fig. 5. Diaptomus similis^ female. 5a. jaw. 



" fifth foot of male. 

 " *' '* female. 

 minnetonka^ fifth foot of male. 

 '' "female. 

 " abdomen of female. 



stagnalis^ margin of last thoracic segment. 

 sanguineus^ " " " " " 



stagnalis^ fifth foot of the male. 

 Fig. 14. Epischura fluviatilis^ abdomen of male. 

 Fig. 15. " lacustris, fifth feet of male. 



Fig. 16. " fluviatilis, '' " '' " 



Fig. 17. Diaptomus pallidus '' '* " " inner ramus. 

 Fig. 18. " sicilis " " " " 



Fig. 6. 



w 



Fig. 7. 



ki 



Fig. 8. 



(I 



Fig. 9. 



u 



Fig. 10. 



u 



Fig. 11. 



u 



Fig. 12. 



il 



Fig. 13. 



u 



