CoUembola 21 a 
Plate 6. 
Fig. 48. Isotoma viridis, eyes and postantennal organ of left side, X 185. 
49. Isotoma viridis, left hind foot, X 295. 
50. Isotoma viridis, left mucro, X 635. 
51. Isotoma viridis, left aspect of tenaculum, X 185. 
52. Isotoma viridis, dorsal setae of third abdominal segment, X 145. 
53. Isotoma palustris, eyes and postantennal organ of left side, X 166. 
54. Isotoma palustris, left hind foot, X 495. 
55. Isotoma palustris, left mucro, X 505. 
56. Isotoma palustris, left aspect of tenaculum, X 250. 
57. Isotoma palustris, dorsal setse of second abdominal segment, X 250. 
Plate 7. 
Fig. 58. Entomobrya comparata, dorsal pattern of head, X 77. 
59. Entomobrya comparata, to show pigmentation, X 34. 
60. Entomobrya comparata, eyes of right side, X 278. 
61. Entomobrya comparata, left hind foot, X 475. 
62. Entomobrya comparata, left mucro and end of dens, X 748. 
63. Entomobrya comparata, left aspect of tenaculum, X 237. 
64. Lepidocyrtus cyaneus, eyes of left side, X 282. 
65. Lepidocyrtus cyaneus, left hind foot, X 748. 
66. Lepidocyrtus cyaneus, left aspect of left mucro and end of dens, X 748. 
Plate 8. 
Fig. 67. Sminthurides aquaticus, eyes of left side, X 400. 
68. Sminthurides aquaticus, right mid foot, X 1010. 
69. Sminthurides aquaticus, left hind foot, X 1010. 
70. Smihthurides aquaticus, dorsal aspect of right mucro, X 513. 
71. Sminthurides aquaticus, left mucro, X 513. 
72. Sminthurides aquaticus, right aspect of tenaculum, X 673. 
Figures 67, 70 and 71 are from Massachusetts specimens. 
