PLATE 15. 



Nepthys ectopa Chamberlin. 



Figures 1-7. 



1. — interior region, dorsal view. X 13.5. 



2. — Proboscis, distal view. X 13.5. 



3._ Right thirty eighth parapodium, anterior view. 



4 _ Finer anterior neuropodial seta, exposed portion. 



5. — Principal type of neuropodial seta, smaller form. 



6. — Principal type of neuropodial seta, common form. 



7._ Notopodial aciculum, distal portion. X 408. 



X 63. 



X 408. 

 X 408. 

 X 408. 



Anaitides compsa Chamberlin. 

 Figures 8, 9. 



8. — Distal end of seta. X 281. 



9. — Second setigerous parapodium. X 18. 



