PLATE XXIII. 



Cyclops crassicornis. 



Fig. 1. Female seen from below. 



2. Anterior antenna of female. 



3. Foot of first pair. 



4. Foot of second pair. 



5. Foot of fifth, pair. 



6. Abdomen and tail. 



Cyclops phaleratus. 



7. Anterior antenna of female. 



8. Posterior antenna. 



9. Maxilla. 



10. Anterior foot-jaw. 



11. Posterior foot-jaw. 



12. Foot of fifth pair. 



13. Male seen from above. 



