PLATE 30. 



Uncinereis subita Chamberlin. 



Figures 1-4. 



1. — Parapodium from middle region of body. X 63. 



2. — Distal end of neuropodial seta, ordinary long-bladed form. X 1075. 



3. — Nein-opodial seta, short-bladed form, from middle region of body. X 1075. 



i. — Stout notopodial seta, or crochet, from middle region of body. X 1075. 



Platynereis polyscalma Chamberlin. 



Figures 5-8. 



5. — Neuropodial seta (heterogomph of first type) from third parapodium of epitokous female. X 1075. 

 6. — Neuropodial seta (heterogomph of second type) from eighth parapodium of epitokous female, 



X 1075. 

 7. — Distal portion of natatory seta from middle region of body. X 278. 

 8.— Tip of blade of same. X 1075. 



