PLATE Ia. 
Fig. 1. Dorsal bristle of EupTirosyne capensis, . . . . x 350. 
Fig. 2. Dorsal bristle of Euphrosyne capensis^ at the inner or dorsal edge 
of the row, ....... x 350. 
Fig. 3. Ventral bristle of the same species, . . . . x 350. 
Fig. 4. Dorsal serrated and forked bristle of Euphrosyne borealis, . x 350. 
Figs. 5, 6. Varieties in the ventral bristles of the foregoing, . . . x 350. 
Fig. 7. Long serrated dorsal bristles of Chloeia jlava, . . . x 210. 
Fig. 8. Anterior dorsal bristle of the same form, with a smooth tip, . x 210. 
Fig. 9. Ventral bristle of the same, . . . . . x 350. 
Fig. 10. Tip of a boldly serrated dorsal bristle of Chloena atlantica, 
beyond the fork, . . . . . . x 350. 
Fig. 11. Tip of another dorsal bristle from the same species, showing slighter 
serrations, . . . . . . . x 350. 
Fig. 12. Third kind of dorsal bristle of the foregoing, with a well-marked 
fork and smooth surface, . . . . . x 210. 
Fig. 13. Ventral bristle of the same species. From the middle of the body, 350. 
Fig. 14. Long slender bristle. From the dorsal tuft of Chloeia fusca, . x 350. 
Fig. 15. Ventral bristle (average form). From an anterior foot of same 
species, ....... x 350. 
Fig. 16. Fragment of one of the longer roughened or spinous dorsal bristles 
of Amphinome rostrata, . . . . . x 350. 
