THE OHIO STATE UNIVERSITY BULLETIN 

 Volume XIX Number 5 



OHIO BIOLOGICAL SURVEY 



BULLETIN 4 



A REVIEW OF THE DESCRIBED SPECIES 

 OF THE ORDER 



Euglenoidina Block 



CLASS FLAGELLATA (PROTOZOA) WITH PAR- 



TICULAR REFERENCE TO THOSE FOUND 



IN THE CITY WATER SUPPLIES AND 



IN OTHER LOCALITIES OF OHIO 



BY 



L. B. WALTON 



MARCH, 1915 



PUBLISHED BY THE UNIVERSITY AT COLUMBUS, OHIO 



Entered as second-class matter November 17, 1905, at the postoffice 

 Columbus, Ohio, under Act of Congress, July 16, 1894. 



