PLATE XLV. 



Figs. 1-9. Pontella securifer, n. sp. 



Fio\ 1. Right anterior antenna of male. 



Fig. 2. Side view of rostrum with eyes (slightly oblique). 



Fig. 3. The same, seen from above. 



Fig. 4. Mandible and palp. 



Fig. 5. Fifth pair of feet of male. 



Fig. 6. Fifth pair of feet of female. 



Fig. 7. Abdomen of male. 



Fig. 8. Abdomen of female (without tail setae), seen from left side. 



Fig. 9. The same, seen from behind. 



Figs. 10-15. Pontella inermis, n. sp. 



Fig. 10. Male (?), seen from above ; magnified 16 diameters. 



Fig. 11. Right anterior antenna of the same. 



Fig. 12. Left anterior antenna of the same. 



Fig. 13. Apex of mandible. 



Fig. 14. Terminal and lateral spines of swimming foot. 



Fig. 15. Fifth pair of feet of male ? 



Figs. 1G-19. Pontella strenua, Dana. 



Fig. 16. Anterior antenna of male (imperfect). 



Fig. 17. Fifth pair of feet of male and extremity of that of left side, more highly 



magnified. 

 Figs. 18, 19. Abdomen of two different specimens. 



Fig. 20. Pontella detruncata, Dana. 

 Fig. 20. Fifth pair of feet of female. 



