BULLETIN 



OF THE 



Jllinois Qtate I aboratory 



OF 



NATURAL HISTORY 



Urbana, Illinois. 



VOLUME V. 



ARTICLE X. NOTES ON SPECIES OF NORTH AMERICAN 

 OLIGOCHMTA. III. LIST OF SPECIES FOUND IN 

 ILLINOIS, AND DESCRIPTIONS OF ILLINOIS TUBIFIC- 

 ID^E. 



By FRANK SMITH, A. M. 



Illinois State Laboratory of Natural History. 



URBANA, ILLINOIS. 



March 21, 1900. 



