470 THOS. H. MONTGOMERY jr, 
Fig. 6. Male, slightly oblique median section of head to one side 
of the median plane. 255: 1. 
Fig. 7. Female, reconstruction of the head end in the horizontal 
plane, viewed from the dorsal aspect, oesophagus not shown. 
Fig. 8. Female, a tuft of retinal cells attached fe a cell of the 
eye capsule. 848: ie 
Fig. 9. Male, portion of a section through the anterior hypodermal 
wall of the eye, the section paratangential to the surface of the cuti- 
cula, and so cut that of the hypodermal cells the uppermost ones are 
cut close to the surface of the cuticula, the others at gradually deeper 
levels. 848: 1. 
Figs. 10, 11. Male, longitudinal sections of hypodermal cells of 
the eye, in both the free ends of the cells pointing towards the bottom 
of the plate, in Fig. 10 the attached cuticula shown. 848: 1. 
Fig. 12. Female, reconstruction of the supra-intestinal organ, the 
anterior end of the organ towards the upper side of the plate, to show 
the arrangement of its lateral branches which are represented as if 
they projected at right angles from the longitudinal duct instead of 
being curved around the intestine; the comparative thickness of the 
different portions not shown. 15:1. 
Fig. 13. Female, left half of a cross section of the head in plane 
D of Fig. 2 of the preceding plate, showing the first median nervous 
septum and the second ventral nerve. 255: 1. 
Fig. 14 Right half of section of the same individual, in the plane 
92.08 Kies M 2b5.:.1. 
Plate 38. 
Fig. 15. Ventral portion of cross section of the head of the same 
individual, in the plane E of Fig. 2, showing the second ventral nerve 
and the left nervous septum of the first pair. 255: 1. 
Fig. 16. Portion of cross section of the head of the same in- 
dividual, in plane A of Fig. 2. 255: 1. 
Fig. 17. Portion of cross section of the head of the same in- 
dividual in plane C of Fig. 2. 255: 1. 
Figs. 18—21. Cross sections through different regions of the supra- 
intestinal organ, showing its apposition to the intestine. 848: 1. 
Fig. 22. Female, cross section of the nerve cord and hypodermis 
in the anterior region of the trunk; the cytoplasmic structure of the 
hypodermis somewhat diagrammatized. 848: 1. 
Fig. 23. Male, transverse section of cephalic ganglion in the plane 
of the ventral commissure. 848: 1. 
Fig. 24. Female, transverse section of the nerve cord and ventral 
hypodermis of the leer trunk region. 848: 1. 
Fig. 25. Female, transverse section of nerve cord and ann: 
body wall, the cuticula not drawn. 848: 1. 
