PLATE XVIII. 



Cyclops tenuicornis. 



Fig. 1. Female seen from above. 



2. Anterior antenna of same. 



3. Mandible and palp. 



4. Maxilla. 



5. Anterior foot-jaw. 



6. Posterior foot-jaw. 



7. Fifth foot. 



8. Caudal segment and setae. 



9. Anterior antenna, penultimate stage of de- 



velopment. 



10. Labrum. 



Misophria pallida. 



11. Maxilla. 



12. Mandible and palp. 



