PLATE XXXV. 



Figs. 1-13. Pontella acutifrons (Dana). 



Fig. 1. Male, seen from above, magnified 16 diameters. 



Fig. 2. Forehead and rostrum with superior eyes. 



Fig. 3. Left anterior antenna of male. 



Fig. 4. Eight anterior antenna of male. 



Fig. 5. Denticulated joints of the same, more highly magnified. 



Figs. 6, 7. Teeth of the upper and lower denticulated plates. 



Fig. 8. Outer branch of one of the swimming feet. 



Fig. 9. Fifth pair of feet of female. 



Fig. 1 0. Fifth pair of feet of male. 



Fig. 11. Appendage of the same, more highly magnified. 



Fig. 1 2. Abdomen of female. 



Fig. 13. Abdomen of male. 



Figs. 14-20. Poiitellopsis villosa, n. gen. and sp. 



Fig. 14. Female, seen from above, magnified 20 diameters. 



Fig. 15. Anterior antenna of same. 



Fig. 16. Mandible and palp. 



Fig. 17. Foot of first pair. 



Fig. 18. Foot of second pair. 



Fig. 19. Fifth pair of feet of female. 



Fig. 20. Abdomen of female. 



