PLATE Y. 



Bias longlremis. 



Fig. 1. Female seen from right side. 



2. Anterior antenna of female. 



3. Right anterior antenna of male. 



4. Left anterior antenna of male. 



5. Posterior antenna. 



6. Mandible and palp. 



7. Maxilla. 



8. Anterior foot- jaw. 



9. Posterior foot-jaw. 



10. Fourth swimming foot. 



11. Terminal spine of the same. 



12. Fifth foot of female. 



13. Fifth pair of feet of male. 



14. Abdomen of female. 



