PLATE CXXXV. 
Fie. 
1. Bristle of Mystides elongata, Southern. x oc. 4, obj. F. 
la. Another, more or less in profile. oc. 4, obj. F. 
2. Bristle of Parexogone hebes, Webster & Benedict. » oc. 4, obj. F. 
2a. Spine in the dorsal region of the foot. oc. 4, obj. F. 
3. Anterior region of Procerastea halleziana (after Malaquin). 
3a. Tips of the bristles of the same (after Malaquin). 
3). Anterior region of female bud (Sicconereis) of the foregoing (after Malaquin). 
Knlarged. 
4, Head of Grubea limbata, Claparéde (after Claparéde). 
4a. Bristles of the foregoing (after Claparede). 
5. Head and anterior end of Grubea pusilla, Dujardin (after Claparede). Enlarged. 
6 and 6a. Bristles of Spherosyllis erinaceus, Claparéde. x oc. 4, obj. F. 
7 anterior, and 7 a posterior, bristles of Spherosyllis bulbosa, Southern. X oc. 4, obj. F, 
with 2-in. draw-tube. 
8. Head and anterior region of Grubea clavata, Claparéde (after Claparéde). 
8a. Anterior foot of the same. X oc. 2, obj. D. 
8b. Bristle of the same. X oc. 2, obj. D. 
9. Head and anterior region of Spherosyllis ovigera, Langerhans (after Langerhans). 
Knlarged. 
10. Bristie of Pionosyllis serrata, Southern. xX oc. 2, obj. F. 
11. Bristles of Autolytus longiferens (after Malaquin). 
lla. Posterior bristle of the same. X oc. 4, obj. F. 
12. Head and anterior region of Streplosyllis Websteri, Southern (after Southern). 
12a. Bristles of the foregoing (after Southern). 
13. Husyllis monilicorinis, Malmgren (after Malmgren). 
15. Head and anterior region of Autolytus (Procerea) macrophthalmus (atter Marenzeller). 
15a and 156. Anterior and posterior bristles. 
16. Head and anterior region of Procerea brachycephala, Marenzeller (after Marenzeller). 
17. Head and anterior region of Autolytus punctatus, De St. Joseph (after De St. Joseph). 
18. Head and anterior region of Autolytus Hdwardsi, De St. Joseph (after De St. Joseph). 
19. Bristle of Hteone foliosu, De Quatrefages, from an Irish specimen. Forwarded by 
Mr. Southern. X oc. 4, obj. F, with draw-tube 4. 
20. Winged bristle of Manayunkia (Haplobranchus) xstuarius, Bourne. X oc. 4, obj. F. 
20a. Hook of the foregoing. x oc. 4, obj. F. 
21. Hook of Huchone normant, McI. & oc. 4, obj. F, with 1-in. draw-tube. 
22 and 22a. Lateral and face-views of the tube of a Terebellid dredged off Valentia. 
“Porcupine,” 1869. About nat. size. 
23. Anterior hook of Hydroides norvegica, Gunner. X oe. 4, obj. F. 
24. Head and anterior region of Marphysa fallax, Marion & Bobretzsky. 
24a. Foot of the foregoing. Enlarged. / 
25. The sixtieth foot of Nerinides longirostris, De Quatrefages, from Blacksod Bay. 
x oc. 2, obj. A. 
