PLATE XXXVII.
F ig .
1. Papillæ of the tip of the proboscis in Aphrodita aculeata. X 55.
2. Papillæ of the proboscis of Lætmatonice filicornis. X 55.
3. Papillæ of the proboscis of Lætmatonice producta. X 40.
4. Papillæ of the proboscis of Hermione hystrix. X 55.
5. Tip of tentacle of Hermione hystrix. X 55.
6. Second bristle of the second foot of Hermione hystrix. x 90.
7. Ventral bristle (at ventral edge) of the same foot of Hermione hystrix. X 90.
8. Smaller bristle from the posterior foot of Hermione hystrix. X 90.
9. Ventral bristle of Lepidonotus squamatus. X 80.
10. Ventral bristle from the middle of the twelfth foot of Lepidonotus squamatus. X 210.
11. Ventral bristle from the middle of the twelfth foot of Lepidonotus clava. X 210.
12. One of the short dorsal bristles of Lepidonotus squamatus. x 180.
13. One of the longer .bristles of Lepidonotus squamatus. X 280.
14. Group of bristles at the base of the tentacular cirri (first foot) of Lepidonotus clava.
X 210.
15. Dorsal bristle of Lepidonotus clava. X 210.
16. Superior ventral bristle of Gattyana cvtrosa. x 258.
17. Ventral bristle from the middle of the foot of Gattyana cirrosa. X 258.
18. Dorsal bristle of the middle of the foot of Gattyana cirrosa. X 210.
19. Bristle from the base of the tentacular cirri of Gattyana cirrosa. X 210.
20. Tip of upper bristle of the first foot of Eunoa nodosa. X 210.
21. Tip of the upper bristle of the first foot of Eunoa OErstedi. X 210.
22. Ventral bristle of the first foot of E. nodosa. X 210.
23. One of the smaller ventral bristles of the first foot of Eunoa OErstedi. X210.
24. Tip of a dorsal bristle (average example) from an anterior foot of Eunoa nodosa.
X 350.
25. Tip of a dorsal bristle (average example) from an anterior foot of Eunoa OErstedi.
X 350.
26. Dorsal bristle of Eunoa nodosa (coast of Durham). X 210.
27. Ventral bristle of Eunoa nodosa (coast of Durham). X 210.
28. Tip of a dorsal bristle of Acanthicolepsis asperrima. X 210.
29. Ventral bristle of Acanthicolepsis asperrima. X 210.
30. Tip of another example in Acanthicolepsis aspemma, showing minute process. X 350.
31. Tip of one of the longer dorsal bristles of Lagisca floccosa. X 350.
32. Tip of a median ventral bristle of the same. X 350.
33. Tip of a bifid dorsal bristle of Euphrosyne JRobertsoni. x 350.