Biota of Freshwater Ecosystems 

 Identification Manual No. 4 



FRESHWATER POLYCHAETES (MNELIDA) OF NORTH AMERICA 



by 



&!OLOG!CAL - 



IJbnARY 



Nancy Foster I •"— ~ ' 



Chairman, Department of Biology \ V.-QCDS HOLE, J-'iASS. 

 Dunbarton College ? \v,. H. 0. I. 

 Washington, D.C. 20008 ' 



for the 



ENVIRONMENTAL PROTECTION AGENCY 



Project # 18050 ELD 

 Contract # 14-12-894 



March 1972 



For sale by the Superintendent of Documents, U.S. Government Printing Office 



Washington, D.C 20402 - Price $2.50 



Stock Number 5501-0368 



