A NEW INTESTINAL TREMATODE OF MAN. 

 (Fascioletta ilocana, gen. nov., sp. nov. ) 



By Philip E. Garrison. 1 

 (From the Biological Laboratory; Bureau of Science, Manila, P. I.) 



In April, 1907, during routine examination of fasces, at Bilibid Prison, 

 Manila, P. I., an ovum was found about 100 microns long, oval in form 

 with one end more sharply rounded; shell, light brown in color and of 

 medium thickness, with an operculum at the sharper end; contents 

 rather refractile, colorless, and composed of a mass of yolk-cells, among 

 which the germ-cell could in some cases be distinguished. 



In May, and again in September of the same year, eggs of the same 

 description were found in the fasces of two other natives prisoners and 

 in April of the present year still two other prisoners showed the same 

 ovum. 



One of the first three patients was discharged without treatment, two 

 were treated for other parasites and the stools examined for the worms 

 which were the source of the eggs in question, none being found. 



The two cases of April of the present year (prisoners Eos. 6667-D 

 and G612-D) arrived at the prison during the same week. The first was 

 treated for a rather heavy infection with Ascaris lumbricoides. Several 

 of these parasites were passed, but no other worms were found, although 

 upon subsequent examinations the undetermined ova had disappeared 

 from the stools. 



Treatment with male-fern was advised in the case of prisoner Xo. 

 6612-D upon the supposition that we might be dealing with an intestinal 

 trematode 2 and this treatment was administered by Dr. E. C. Shattuck, 

 resident physician of the prison. The stools passed after treatment were 

 examined by my student assistants, Mr. Eicardo Leynes and Mr. Eosendo 



1 Assistant surgeon, United States Navy ; detailed medical zoologist to the 

 Biological Laboratory, Bureau of Science, Manila, P. I. 



2 The use of male-fern in infections with intestinal trematodes was first sug- 

 gested to us by Dr. Ch. Wardell Stiles in his lectures at The United States Naval 

 Medical School, upon the theoretical ground that a drug which is effective for 

 cestodes mig'ht be also for other plathelminthic parasites. 



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