il.'l i 



BULLETIN 



OF THE 



Illinois Qtate | aboratory 



OF 



NATURAL HISTORY 



Urbana, Illinois. 



VOLUME V. 



ARTICLE XI. NOTES ON SPECIES OE NORTH AMERICAN 

 OLIG CHAi TA. IV. ON A NE IV L UMBRICULID GENUS 

 FROM FLORIDA, WITH ADDITIONAL NOTES ON THE 

 NEPHRIDIAL AND CIRCULA TORY SYSTEMS OF MESO- 

 PORODRILUS ASYMMETRICUS SMITH. 



By frank smith, A. M. 



Assistant Professor of Zoology, University of Illinois. 



Illinois State Laboratory of Natural History. 



UKBANA, ILLINOIS. 



^ • June 9, 1900. 



