PLATE XIX. 



Euclia'tit prcstnndrecs, Philippi. 



Female. 



Fig. 1. Female, seen from above, magnified 20 diameters. 



Fig. 2. Female, seen from left side, magnified 40 diameters. 



Fig-. 3. Posterior antenna. 



Fig. 4. Mandible and palp. 



Fig. 5. Maxilla. 



Fig. 6. Anterior foot-jaw. 



Fig. 7. Posterior foot-jaw. 



Fig. 8. Foot of first pair. 



Fig. 9. Foot of second pair. 



Fig. 10. Foot of third pair. 



Fig. 11. Terminal spines of one of the swimming feet 



