PLATE IXa. 
Fig. 1. T)ots>q\. oi Polynoe platycirrata, . ... x 350. 
Fig. 2. Dorsal bristle of Lepidonotus gymnonotus, . . . . x 90. 
Fig. 3. Tip of average ventral bristle of the same, . . . . x 210. 
Fig. 4. Dorsal bristle of Polynoe capensis, . . . . . x 350. 
Fig. 5. Ventral bristle of tire same, . . . . . x 350. 
Fig. 6. Dorsal bristle of Polynoe pustidata, . . . . x 350. 
Fig. 7. Tip of a ventral bristle of the same form, . . . . x 350. 
Fig. 8. Attenuate dorsal bristle of Polynoe {Langerhansia) euplectelloe, . x 350. 
Fig. 9. Tip of average ventral bristle of the foregoing, . . . x 210. 
Fig. 10. Tip of a dorsal bristle of Evarnetenuisetis, . ... x 350. 
Fig. 11. Extremity of one of the superior ventral bristles of the same 
species, ....... x 350. 
Fig. 12. Tip of an inferior ventral bristle of the same, . . . x 350. 
Fig. 13. Tip of dorsal bristle of Lagisca magellanica, var. murrayi, . x 90. 
Fig. 14. One of the short ventral bristles (from the middle of the series) of 
the same, . . . . . . . x 90. 
