EXPLANATION OF PLATE XVI. 



FIGURE 82. Ampliitrite oruata, (p. CIS;) lateral view, somewhat reduced, from a 



living specimen. 



83. Ampharete gracilis, (p. 612 ;) lateral view. 

 84. Euchone elegans, (p. 618 ;) lateral view. 

 85. Polycirrus eximius, (p. 616 ;) dorsal view of a living specimen creeping 



by means of its tentacles ; natural size. 

 {Figures 82, 84, 85, were drawn from nature by A. E. Yerrill ; 83, by J- H. Ernerton.) 



