PLATE XIXa. 
Fig. 1, Brusli-sliaped bristle of Nematonereis (fragment) from Sea Point. 
From the superior division of the foot, . . . x 350. 
Fig. 2. Articulated ventral bristle of the same species, . . . x 350. 
Fig. 3. Brush-shaped bristle, from the superior branch of Nematonereis, 
from St. Vincent, ...... x 350. 
Fig. 4. Compound bristle, from the inferior division of the foot of the 
same species, ....... x 350. 
Fig. 5. Long hook, from the inferior division of the foregoing, just after 
development {i.e., unworn), . . . . . x 350. 
Fig. 6. Dorsal bristle of jE'imme . . . . x 210. 
Fig. 7. Brush-shaped bristle from the same group, . . . . x 350. 
Fig. 8. Compound bristle, from the inferior division of the foot of the 
foregoing, . . . . . . . x 210. 
Fig. 9. Strong bifid posterior hook from the same, one of the wings only 
being indicated, . . . . . . x 210. 
Fig. 10. Compound bristle, from the inferior division of the foot of Eunice 
prognatha, . . . . . . . x 350. 
Fig. 11. Tip of stout blackish hook, from the posterior region of the same, . x 210. 
Fig. 12. Compound bristle, from the inferior group of the twentieth foot of 
Eunice torresiensis, . . . . . . x 350. 
Fig. 13. Posterior hook, from the same species, . . . . x 210. 
Fig. 14. Compound bristle, from the twentieth foot of Eunice cerstedi, off 
Marion Island, . . . . . . x 350. 
Fig. 15. Compound bristle, from the same foot of a specimen of Eunice 
from Bergen, Norway, . . . . x 350. 
Fig. 16. Compound bristle, from the twentieth foot of Eunice vittata, . x 350. 
Fig. 17. Posterior hook, from the same species, . . . . x 350. 
Fig. 18. Compound bristle, from the inferior border of the twentieth foot of 
Marphysa goodsiri, . . . . . . x 350. 
Fig. 19. Tip of the posterior hook of the same species, . . . x 350. 
Fig. 20. One of the lower (broader) bristles, from the dorsal group of the 
foregoing, ....... x 350. 
Fig. 21. Superior bristle, from the twentieth foot of Eunice cirrohranchiata. 
Not altogether a lateral view, . . . . x 210. 
Fig. 22. Compound bristle from the same foot, slightly turned round, . x 350. 
Fig. 23. A more completely lateral view of a bristle from the same foot, the 
shaft being somewhat injured by compression, . . x 350. 
Fig. 24. Posterior hook of the same species, with the usual double wing, . x 210. 
