EXPLANATION OF PLATE XXX. 



Mastobranchus indicus, sp. nov. 



Fig. 25A. — Anterior end, ventral view, x 8. 

 „ 25B. — Dorsal capillary seta from the 12th segment (nth foot). X 485. 

 „ 25c— Tip of long crochet from the ventral division of the 12th segment 



(nth foot), x 1120. 

 „ 25D. — Ventral crochet from the 13th segment (12th foot). X 360. 

 „ 25E. — Tip of the dorsal crochet from the 15th segment (14th foot). X 1120. 

 „ 25F. — Ventral crochet from the 50th segment. X 360. 



Laonome indica, sp. nov. 



Fig. 26A. — Anterior end, dorsal view, x 25. 

 2 6b. — Collar segment, ventral view, x 56. 

 26c. — Tip of a branchia. X 56. 



26D. — Dorsal capillary seta from the 2nd setigerous segment. X 660. 

 26R. — Spatulate dorsal setae from the 2nd setigerous segment. X 560. 

 26F. — Capillary seta from the 8th setigerous segment. X 660. 

 26G. — Uncinus from the 2nd setigerous segment. «=front view; &=side 

 view, x 800. 

 ,, 26H. — Uncinus from the 8th setigerous segment. X 800. 



Ficopomatus macrodon, gen. et sp. nov. 



Fig. 27A. — Anterior end, dorsal view, x 26. 

 ,, 27B. — Posterior end, ventral view. X 56. 

 ,, 27c. — Operculum from the left side. X 40. 



,, 27D. — Modified seta from the ist setigerous segment, side view. X 560. 

 ,, 27E. — The same seta, front view. X 560. 



,, 27F. — Simple capillary seta from the ist setigerous segment, x 560. 

 ,, 27G. — Capillary seta as found in the dorsal bundles of segments 2—6. 



X 560. 

 ,, 27H. — Uncinus from a thoracic segment. a=face view; 5=side view. 



X 840. 

 ,, 27J. — Anterior abdominal parapodial lobe. 



,, 27K. — Ventral seta from an anterior abdominal segment, x 560. 

 ,, 271,.- — -Uncinus from an anterior abdominal segment, x 840. 

 ,, 27M. — -Diagrammatic sections of the tube, a — old portion of a free tube; 



&= recent portion of a free tube ; c=front view of the aperture of 



an attached tube. 



