140 
PROCEEDINGS OF SOCIETIES. 
PLATE 4— VOL. II. 
EL A CH 1ST A TRISERIATELLA. 
1. The natural size. 
2. Magnified. 
Vide Proceedings of Societies, pages 116-124, and pages 109-115. 
The remaining figures to illustrate Mr. Haliday’s paper on Pulex, not in 
time for the Proceedings of this No. ; see the No. for January, 1856. 
3. Larva—slightly magnified. 
4. Do.—more magnified. 
5. Rachidian chain. 
6. Two-niter mediate ganglia. 
7. Intestinal canal, with head. 
8-9. Rudiments of generative system. 
10. Head—side view. 
13. Do.—from above. 
14. Antenna. 
11. Epistoma—from above. 
12. Fore part of head—from below. 
15. Mandibles closed, &c. 
16. Palpus under mandible. 
17. Palpus detached. 
18. Mandibles extracted. 
19. Intermediate segment of above. 
20. Do.—side view. 
21. Hinder part of body. 
22. Upper edge of anal declivity. 
23. Terminal hooks from below. 
24. Intestinal canal. 
25. Grapplers of male. 
26. Internal organs do. 
27. Vesicles apart. 
28. Ovident and ovary of female. 
