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A NEW LIVER FLUKE FROM A MONKEY AND NEW 

 PARASITIC ROUNDWORMS FROM VARIOUS AFRICAN 

 ANIMALS 



By J. H. Sandground 



Of the Department of Tropical Medicine, Harvard Medical School, Boston, Mass. 



The Harvard African Expedition of 1926-27, under the leadership 

 of Prof. Richard P. Strong of the department of tropical medicine, 

 Harvard University Medical School, spent some months in the Repub- 

 lic of Liberia and then crossed Africa from the Belgian Congo on the 

 west to Mombassa on the east coast, making investigations of the 

 natives and the local fauna from the medical and zoological aspects. 



In the extensive collection of material brought back to the United 

 States for detailed study are many tubes of parasites from various 

 animals secured in the different localities where halts were made. 

 Many of these parasites were assigned to me for identification and 

 systematic study, and I take pleasure in recording my indebtedness 

 to Professor Strong for this privilege. 



The following paper, constituting part of the report on the parasite 

 collection, contains a description of a new species of the trematode 

 genus Dicrocoelium from the liver of a monkey, a new genus of the 

 nematode family Strongylidae, also from a monkey, and a new species 

 of the trichostrongylid genus Oswaldocruzia from a lizard. Nemato- 

 dirus hoplceni (Leiper 1907) from the hippopotamus was well represented 

 in this collection, and as a result of the reexamination of this parasite 

 it is considered necessary to remove it from the genus Nematodirus 

 and to create a new genus for its reception. 



Several other helminths, probably new to science, are also present 

 in this collection, but the inadequacy or the unfavorable condition of 

 some of the material does not permit me to give a complete descrip- 

 tion and specific determinations of these worms at the present time. 



As a matter of record, a list is appended of parasites present in the 

 collection which could.be identified generically, and in some instances 

 specifically, with the material available. 



An asterisk denotes a new host record of a previously described 

 species of parasite. 



No. 2783.— Proceedings U. S. National Museum. Vol. 75, Art. 12 



27388—29 



