448 MR. LUBBOCK ON THE THYSANURA. 
EXPLANATION OP THE PLATES. 
Plate XLV. 
Fig. 1. Smynthurus Buskii. Mandible, x 60. 
Fig. 2. „ „ Tip of the same, x 250. 
Fig. .3. „ „ Mandible of other side, x 60. 
Fig. 4. „ „ Tip of the same, x 250. 
Fig. 5. ., „ Maxilla, x 60. 
Fig. 6. „ „ Tip of the same, x 250. 
Fig. 7- „ „ Labrum, x 250. 
Fig. 8. „ „ Palpus, x 250. 
Fig. 9. „ „ Second maxilla, x 250. 
Fig- 10. „ „ Leg of third pair, x 60. 
Fig. H. „ „ Foot, x 250. 
F |g- 12- „ „ Spring, x 60. 
Fi g- Wk „ „ Part of the same, x 250. 
*ig- 11- ,, „ Anal appendages, x 250. 
Fig. 15. Papirius cursor. Antenna, x 60. 
Fig- 16. „ „ Tip of the same, x 250. 
Fi g- 17- „ „ Upper lip, x 250. 
Fig- 1 6. „ „ Tips of the two mandibles, x 250. 
Fig- 19. „ „ Palpus, x 250. 
Fig. 20. „ „ Maxilla of the second pair, x 250. 
Fig- 21. „ „ Leg of the third pair, x 60. 
F jg- 22. „ „ Foot of the first leg, x 250. 
Fig- 2.3. „ „ Foot of the third leg, x 250. 
Plate XLVI. 
Fjg- 24. „ „ Spring, x 60. 
Fig. 25. Gregar'ma of P. cursor. 
Fig. 26. Papirius Saundersii. Upper lip, x 250. 
F jg- 2 7- n „ Tip of first maxilla, x 250. 
* ! g- 28. „ }) Tip of second maxilla, x 250. 
F jg- 29 - » » Palpus, x 250. 
Fig. 30. „ M Lower lip, x 250. 
rig- 31. „ n Foot of anterior leg, x 250. 
*jg- 32. M n Foot of posterior leg, x 250. 
rig. 33. „ w Anterior abdominal appendage, x 250 
rig. 34. „ ?j Anal hairs, x 250. 
Fig. 
Smynthurus 
a. Orifice of tube. y. Point of attachment of basal muscle. 
b. Basal part of tentacle. g . Branch of basal muscle. 
c. Apical part of tentacle. h. Apical muscle. 
d. Point of attachment to dorsal surface. i. Papillae turned outside in. 
c. Basal muscle. 
Fig. 
Papirius purpureas 
Fig. 37- Female generative organs, Smynthurus Buskii 
organs 
Fig. 38 
Fig. 39. Spermatozoa, x 250. 
Fig. 40. Earlier stages of spermatozoa, x 250. 
Fig. 41. Greenish cellules occurring in considerable numbers in the male generative organs, X 250- 
Fig. 42. Large transparent cells occurring in considerable numbers in the male generative 
organs, x 250. 
Fig. 43. Papirius Saundersii. 
