ZOOLOGICA 



SCIENTIFIC CONTRIBUTIONS 91; 

 NEW YORK ZOOLOGICAL SO 



THE 

 ETY 



VOLUME I, NUMBER 20. 



SOME NEW SPECIES 

 OF 



ECTOPARASITIC TREMATODES 



By G. a. MacCallum, M.D. 

 Department of Pathology, 



COLUMBIA UNIVERSITY, NEW YORK. 



PUBLISHED BY THE SOCIETY 



THE ZOOLOGICAL PARK, NEW YORK 



June, 1^15 



