PLATE CVIIL 



Fig. 



1. Hook of Lumbriclymene minor, Arwidsson. 'Porcupine,' 1870. x 390. 



2. Hook of Notoproctus (fragment), off Cape Ghiardia. ' Porcupine,' 1870. X 360. 



3. Winged bristle of Rhodine gracilior, Tauber. X oc. 2, obj. D. 

 3 a. Simple capillary bristle. X oc. 2, obj. D. 



3b. Hook of the foregoing. X oc. 4, obj. F. 



3 c. Hook of Rhodine Loveni, Malmgren. x oc. 4, obj. F. 



4. Hook of Isocirras planiceps, Sars, near the posterior end of the body. X 360. 



5. Winged bristle of Leiochone borealis Arwidsson. x oc. 2, obj. D, with 2 in. draw-tube. 

 5 a. Simple capillary bristle (with serrated edge). X oc. 4, obj. D, with 1 in. draw-tube. 

 5 c. Peculiar bristle with serrated edge, commencing with larger spikes. X oc. 4, obj. D. 

 5 d and 5 e. Hooks of the foregoing. X 350 diam. 



6. Hook of a variety (?) from the North Sea. x 380. 



7. Winged bristle of Leiochone Johnstoni, Mcintosh, from Loch Alsh. x oc. 4, obj. A, 



with full draw-tube. 

 7 a. Simple capillary bristle. X oc. 4, obj. A, with l\ in. draw-tube. 

 lb. Hook of the same, x 133. 

 7 c. The foregoing more highly magnified. x oc. 4, obj. D. 



8. Hook of Praxillella affinis, Sars. St. Magnus Bay, 1867. x 360. 



9 and 11. Hooks of Praxillella? No gular bristles. ' Porcupine,' 1870. 994 fathoms. 

 X 360. 

 10. Bristles of Pseudoclymene quadrilobata, Sars. X 200. 

 10 a. Hook of the foregoing from the eighth segment. X 360 diam. 



12. Winged bristle of Pseudoclymene (Erstedi, Claparede, from the eighth bristle-bundle. 



X oc. 4, obj. D, with 1 in. draw-tube. 

 12 a. Capillary bristle. X oc. 4, obj. D. 

 12 b. Spiked bristle. X oc. 4, obj. D, with full draw-tube. 

 12 c. Hook of the same. X 360 diam. 



13. Hook of Asychis Jeffrey sii, Mcintosh, off Cape Finisterre. ' Porcupine,' 1870. X 200. 



14. Hook of Asychis biceps ?, Sars, from Loch Linnhe. x 350. 



15. Stout tooth-like bristle of fourth foot of Phyllochsetopterus gracilis, Grube. X oc. 2, 



obj. A. 



