BULLETIN 



OF THE 



Illinois Qtate | aboratory 



OF 



NATURAL HISTORY 



Urbana, Illinois. 



VOLUME V. 



ARTICLE XI. NOTES ON SPECIES OE NORTH AMERICAN 

 OLIG CHM TA. IV. ON A NE W L UMBRICULID GENUS 

 FROM FLORIDA, WITH ADDITIONAL NOTES ON THE 

 NEPHRIDIAL AND CIRCULA TORY SYSTEMS OF ME SO- 

 P OR ODRIL US ASYMME TRICUS SMI TH 



By FRANK SMITH, A. M. 



Assistant Professor of Zoology, University of Illinois. 



Illinois State Laboratory of Natural History. 



URBANA, ILLINOIS. 



June 9, 1900. 



