PLATE 66. 



Branchethus latum Chamberlin. 



Figures 1, 2. 



1. — Neuropodial seta of anterior parapodium. X 278. 



2. — Portion of notopodial seta of anterior parapodium. X 278. 



Nainereis retusiceps Chamberlin. 



Figures 3-5. 



3. — Tenth parapodium, anterior view. X 63. 



4. — Ventral neuropodial seta, tenth parapodium. X 278. 



5. — Ordinary neuropodial seta, tenth parapodium. X 278. 



Plotobia simplex Chamberlin. 

 Figures 6-11. 



6. — Style of first right notocirrus. X 63. 



7. — Style of second right notocirrus. X 63. 



8.^ — Style of third right notocirrus. X 63. 



9. — Style of fifteenth right notocirrus. X 63. 

 10. — Style of last right notocirrus. X 63. 

 11. — Style of neurocirrus of about fifteenth setigerous somite. X 63. 



