PLATE CIII. 



Fig. 



1. Bristle of Ophelia limacina, H. Rathke. x oc. 4, obj. D. 



2. Bristle of a young example. X oc. 4, obj. F. 



3. Bristle of Ammotrypane aulogaster, H. Rathke. X oc. 4, obj. D. 



4. Bristle of Travisia Forbesii, Johnston. X oc. 2, obj. F. 



5. Bristle of Eumenia crassa, (Ersted. x oc. 2, obj. F. 

 5 a. Forked bristle of the same. X oc. 2, obj. D. 



5 b. Forked bristle of Eumenia (Lipvbranchus) Jeffrey sii, Mel. X oc. 2, obj. D. 



6. Capillary bristle. X oc. 4, obj. D. 



7. Capillary bristle of Scalibregmainflatum, H. Rathke. X oc. 4, obj. D. 

 7 a. Tip of the foregoing more highly magnified. 



7 b. Forked bristle of the same species, x oc. 4, obj. F., with full draw-tube. 



8. Simple capillary bristle of Sclerocheilus minutus, Grube. X oc. 4, obj. D, with full 



draw -tube. 



8 a. Winged bristle of the foregoing, second foot. X oc. 4, obj. D. 

 8 b. Bifid bristle of the same species. X oc. 4, obj. D. 



9. Falcate bristle of Ephesia gracilis, H. Rathke. x oc. 4, obj. D. 



10. Jointed bristle of Ephesia peripatus, Johnston, from Guernsey. x oc. 4, obj. D, with 



full draw-tube. 



11, 11a, 11/?, and lie. Tips and base of the dorsal bristles of Arenicola marina, L. 



X 280 diam. 



11 d. Crotchet of the foregoing. X oc. 4, obj. D. 



12 and 12 a. Tips of the dorsal bristles of Arenicola, branchialis, Audouin & Edwards, 



showing fine spikes. X oc. 2, obj. D. 

 12b and 12c. Hooks of the same species, the former a larger and the latter a smaller 

 specimen. 12 b, X oc. 4, obj. D. 12 c, X oc. 4, obj. D, with draw-tube. 



13 and 13 a. Tips of the dorsal bristles of Arenicola ecaudata, Johnston. X oc. 2, obj. D. 



13 b. Hook of the foregoing, x oc. 4, obj. D, with 2 in. draw-tube. 



14 and 14 a. Bristles of Ammotrypane eylindricaudatns, Hansen, c Porcupine,' 1870, 



X oc. 4, obj. D, with 2 in. draw-tube. 



15. Bristle of Armandiella Tiobertianse, Mcintosh. x 360. 



16. Bristles of Cirratulusbioculatus, McL, Shetland, 1867. X 360. 



17. Bristles of Cirratulid Z. ' Porcupine,' 1870. X 360. 



