PLATE LII. 



Figs. 1-14. CoryccBus varius, Dana. 

 Fig. 1. Female, seen from above ; a, lateral processes of third thoracic segment. 

 Fig. 2. The same, seen from left side; both magnified 40 diameters. 

 Fig. 3. Abdomen of female, seen lateral!}'. 

 Fig. 4. Abdomen of male, seen from the front. 

 Fig. 5. Abdomen of immature female, seen from the front. 

 Ficr. 6. Anterior antenna. 

 Fig. 7. Posterior antenna of male. 

 Fig. 8. Posterior antenna of female. 



Fig. 9. a, Mandible; a', a', apical processes; a", palp; l>, maxilla. 

 Fig. 10. Anterior foot -jaw. 

 Fig. 11. Posterior foot-jaw. 

 Fig. 1 2. Foot of first pair. 

 Fig. 13. Foot of third pair. 

 Fig. 14. Foot of fourth pair. 



Figs. 15-19. CoryccBus pellucidus, Dana. 

 Fig. 15. Female, seen from left side; magnified 80 diameters. 

 Fig. 16. Anterior antenna. 

 Fioj. 17. Posterior antenna. 

 Fig. 18. Posterior foot-jaw. 

 Fig. 19. Abdomen and tail with attached spcrmatophores. 



