PLATE CIX. 



Fig. 



1. Hooks of Rhodine gracilior, Tauber, as published in 1869. X 350. 



2. Dorsal bristle of Nicomache metadata, Arwidsson. X oc. 4, obj. D. 



2 a. Spine from the anterior region of the same. X oc. 4, obj. A. 



3 and 3 c. Dorsal bristles of Proclymene Mulleri, Sars. x oc. 4, obj. D. 



3 b and 3 d. Hook of the foregoing. 3 b X about 90 diam.; 3 d x oc. 4, obj. D. 



4. Bristle of Heteroclymene robusta, Arwidsson. x oc. 4, obj. D, with draw-tube. 



4 a. Hook of the foregoing. X oc. 4, obj. D. 



5. Anterior spine of Pseudoclymene quadrilobata, Sars. X oc. 4, obj. A, with draw-tube. 



6. Tip of a spine of Isocirrus planiceps, Sars, from the Hebrides. X oc. 4, obj. A, with 



draw-tube. 

 6 a. Hook of the same. X oc. 4, obj. D. 

 9. Hook of Isocirrus DA from Montrose Bay. X oc. 4, obj. A. 



10. Capillary (winged) bristle of Leiochone (Clymene) ebiensis, Audouin & Edwards. 



X oc. 4, obj. D. 

 10 a. Anterior hook in which development is incomplete. From Jersey. X oc. 4, obj. D. 



10 b. Completely developed hook, x 350. 



11. Bristle (with narrow wings) of Leiochone clypeata, De St. Joseph. x oc. 4, obj. D, 



with draw- tube. 



11 a. Hook of the foregoing from the tenth segment. X oc. 4, obj. D. 



12. Dorsal bristle of Praxillella gracilis, Sars. X oc. 4, obj. A, with full draw-tube. 



12 a. Hook of the same. X oc. 4, obj. D, with full draw-tube. 



13 and 13 a. Dorsal bristles of Praxillella prmter mis sa, Malmgren. x oc. 4, obj. D. 

 13 b. Hook of the foregoing, x oc. 2, obj. D. 



13 a. Hook of the last row. x oc. 4, obj. D, with draw-tube. 



14. Tuft of dorsal bristles from the twentieth foot of Girratulus caudatus, Levinsen. 



X 133. 



14 a. Posterior hook-like bristle of the same. X oc. 4, obj. A, with 2 in. draw-tube. 



15. Dorsal bristle of Prionospio Malmgreni, Claparede. X oc. 4, obj. D. 



15 a. (The upper fig. 15 in the plate) another with more distinctly granular contents. 



X oc. 4, obj. D. 

 15 b. Hook of the foregoing, x oc. 4, obj. D. 

 3 6. Spinous bristle of Maldane Sarsi, Malmgren. x oc. 4, obj. D. 



