PLATE Q 5. 



Fig. 1. Cyclops fluviatilis, female. 



Fig. 2. antenna. 



Fig. 3. antenna of young. 



Fig. 4. abdomen of young. 



Fig. 5. foot of young. 



Fig. 6, foot of adult. 



Fig. 7. fifth foot. 



Fig. 8. eye. 



Fig. 10. C. serrulatus, young. 



Fig. 11. Daphtiella hrachyura, female. 



Fig. 12. Daphnella brachyiira, male. 



Fig. 13. edge of valves. 



Fig. 14. abdomen of male. 



Fig. 15. abdomen of female. 



Fig. 16. antenna of male. 



