EXPLANATION OF PI,ATE XXI. 



Dendronereides heteropoda, gen. et sp. nov. 



Fig. 6a. — Anterior end, dorsal view. X 40. 

 „ 6b. — Front view of partially extruded proboscis, showing the basal ring of 

 papillae. 



6c. — ist right foot, front view, x 100. 



6d. — 4 th right foot, front view. X 100. 



6e. — 9th right foot, front view. X 100. 



6f. — -21st right foot, front view, x 100. 



6g. — Single bunch of gill branches from the 25th foot, x 100. 



6h. — Dorsal division of 26th right foot, front view, x 100. 



6j. — 30th right foot, front view. Setae not shown. X 100. 



6k. — -Dorsal seta from the 14th foot. x 560. 



61,. — Ventral seta with long teeth, from 14th foot. X 560. 



6m. — Homogomph falcate seta from the ventral division of the 14th foot. 

 X 560. 



6n. — Tip of shaft of seta from the ventral division of the 22nd foot, show- 

 ing the 'hemigomph' condition. X 560. 



Fig. 



Nereis reducta, sp. nov. 



7A. — Anterior end, dorsal view. X 26. 



7B. — Anterior end, ventral view. X 26. 



7c. — Paragnath from Group I. X 330. 



jv, — Paragnath from Group VIII. «=sideview; ô=surface view. X 330. 



7E. — ist right foot, front view. X 100. 



7F. — 3rd right foot, front view. X 100. 



7G. — 10th right foot, front view. X 100. 



7H. — 60th right foot, front view. X 100. 



7J. — Homogomph seta with long tapering tip, from dorsal division of 40th 



foot. X 560. 

 7K. — Heterogomph falcate seta from lower part of ventral division of 40th 

 foot. X 560. 



