PLATE XII. 



Pseudocyclops obtusatus. 



Fig. 1. Male seen from right side. 



2. Right anterior antenna of male. 



3. Left anterior antenna of male. 



4. Posterior antenna. 



5. Mandible and palp. 



6. Maxilla. 



7. Anterior foot-jaw. 



8. Posterior foot-jaw. 



9. Foot of first pair. 



10. Terminal spine, &c., of swimming foot. 



11. Fifth pair of feet of male. 



12. Foot of fifth pair of female. 



13. Abdomen of male. 



Pseudocyclops crassiremis. 



14. Fifth pair of feet of male. 



