Monogenetic Trematodes 



Their Systematics and Phylogeny 



by 

 BORIS E. BYCHOWSKY 



Edited 



by 



WILLIAM J. HARGIS, JR. 



Translated 



by 



PIERRE C. OUSTINOFF 



AMERICAN INSTITUTE OF BIOLOGICAL SCIENCES 

 2000 P Street, N. W. 

 Washington 6, D. C. 



