. PLATE XXIIa. 
Fig. 1. Dorsal bristle, from the twentieth foot of Nothria abranchiata, . x 210. 
Fig. 2. Inferior bristle, from the same foot, . . . . x 210. 
Fig. 3. Hook, from the twentieth foot of the foregoing, . . . x 210. 
Fig. 4. Bifid bristle, from the first foot of iVbi/m’a ^2/cnohrawc/w’ato, . x 210. 
Fig. 5. Lower hook, from the twentieth foot of the same, . . . x 210. 
Fig. 6. Bifid bristle, from the first foot of Nothria macrobranchiata, . x 210. 
Fig. 7. Hook, from the middle of the foot (about tw^entieth) of the 
same, ....... x 210. 
Fig. 8. Bristle, from the twentieth foot of Eone trifida, in calcium 
chloride, ........ x 350. 
Fig. 9. Blunt spine, from the fiftieth foot of the same, . . . x 350. 
Fig. 10. Bristle, from the upper edge of the inferior series of the twentieth 
foot in Glycera sagittariw, . . . . . x 350. 
Fig. 11. Bristle, from the middle of the ventral series in Glycera lamelli- 
formis, ....... x 350. 
Fig. 12. One of the lower series of the superior tuft of the thirtieth foot in 
Hemipodus magellanicus, . . . . . x 350. 
Fig. 13. One of the lower series of the superior division of the ventral bristles 
of the thirtieth foot of the same, . . . . x 350. 
Fig. 14. Bristle, from the middle of the inferior series of the ventral bristles 
of the thirtieth foot in the foregoing species, . . . x 350. 
Fig. 15. The middle bristle (of the three), from the inferior ventral series of 
the ninetieth foot in the same, . . . . x 350. 
Fig. 16. Stout bristle, from the anterior region of Hn'ci’a . x 210. 
Fig. 17. Basal region of a serrated bristle, from the same region of the fore- 
going, the tip being fractured, . . . . x 210. 
Fig. 18. Long and peculiarly curved bristle, from the tenth foot of Aricidia 
fragilis, . . . . . . . x 350. 
Fig. 19. Long bristle, from the ventral tuft of the eighth foot of Scoloplos 
kergiielensis, . . . . . ... x 350. 
Fig. 20. Forked bristle, from the tenth foot of Eumenia reticulata, . . x 350. 
Fig. 21. Forked bristle, from about the fortieth foot of Scalibregma injiatum, 
var., ........ X 350. 
Figs. 22, 23. Two bristles, from Ephesia antarctica, the former being 
slightly turned, 
X 350. 
