﻿MARINE 
  POLYCHAETE 
  WORMS 
  — 
  PETTIBONE 
  

  

  Ir. 
  an 
  -dC 
  "PO^, 
  

  

  277 
  

  

  J. 
  ^ 
  - 
  N 
  

  

  Figure 
  31. 
  — 
  For 
  explanation 
  see 
  facing 
  page. 
  

  

  