PLATE LXXXIII. 



Fig. 



1. Spine of Drilonereis longa, Webst., var. Elisabeths, Mel. X 100. 



1 a. Tip of foot with bristles. X Zeiss oc. 2, obj. D. 



2. Dorsal bristle of Arabella tricolor, Mont, x Zeiss oc. 2, obj. D. 



2 a. Bristles below the former with bold serration. x Zeiss oc. 2, obj. D. 



3. Bristle of Notocirrus scoticus, Mel. X Zeiss oc. 2, obj. D. 



4. Dorsal bristle of Eunice fasciata, Bisso. X Zeiss oc. 2, obj. D. 



4 a. Falcate bristle, x Zeiss oc. 2, obj. D. 



5. Anterior dorsal bristle of Marphysa sanguinea, Mont. x Zeiss oc. 2, obj. D. 



5'. Another showing slightly broader tip. X Zeiss oc. 4, obj. D, with 2-in. draw-tube. 



5 a. Brush-like bristle. X Zeiss oc. 4, obj. F. 



5 b. Variety of the latter near the tip of the tail, slightly twisted. X Zeiss oc. 4, obj. F. 



5 c. Ventral bristle. X Zeiss oc. 4, obj. F. 



6. Dorsal bristle of Marphysa Kinbergi, McL, from the ' Porcupine,' 1870. X Zeiss oc. 2, 



obj. D. 



6 a. Jointed bristle. X Zeiss oc. 4, obj. D. 



6 b. Tip of shaft of the foregoing turned so as to exhibit its structure. X Zeiss oc. 4, 



obj. D. 



7. Dorsal bristle of Eunice vittata, D. Chiaje. X Zeiss oc. 4, obj. D. 



7 a. Falcate bristle (ventral). X Zeiss oc. 4, obj. F. 



7 b. Great hook with a bifid crown, from Adventure Bank, ' Porcupine,' 1870. X Zeiss 



oc. 4, obj. F. 



8. Falcate bristle of Eunice norvegica, L., from Norway. x Zeiss oc. 2, obj. D. 



8 a. Posterior hook, x Zeiss oc. 2, obj. D. 



9. Dorsal bristle of Eunice norvegica, var. B.A. 'Porcupine.' x Zeiss oc. 2, obj. D. 



9 a. Brush-like bristle. X Zeiss oc. 2, obj. D. 



9 b. Falcate ventral bristle. X Zeiss oc. 2, obj. F. 



9 c. Posterior hook, x Zeiss oc. 2, obj. D. 

 10. Brush-like bristles of dorsal series of Eunice floridana, Pourt. X Zeiss oc. 2, obj. D. 

 10 a. Falcate bristle. X Zeiss oc. 4, obj. D. 

 10 b. Posterior hook. x Zeiss oc. 4, obj. D. 

 10 c. Dorsal bristle of the same, x Zeiss oc. 4, obj. D. 



