146 Diseases of Poultry 



Son. These, however, are not all distinct : dilatatum is 

 undoubtedly the same as oxycephalum ; armatum is also 

 probably the same." 



None of these trematode worms are of any pathological 

 importance, although, as is well known, they often cause 

 serious maladies in other animals. All the flukes that have 

 tw^o hosts undergo a complicated metamorphosis, the early 

 stages always taking place in some water-mollusk. Those 

 found in the fowl have not had their life-histories worked 

 out. 



Numerous flagellate and other microscopic parasites have 

 been described from the intestine, ceca and cloaca of 

 fowls. Martin and Robertson ^ mention particularly the 

 flagellates, Chilomastix gallinanim. Trichomonas gallinarum, 

 Trypanosoma eberthi and Trichomastix gallinarum. 



Berke ^ describes a microfilaria occurring very abundantly 

 in the liver of domestic fowls. 



None of these parasites causes serious injury so far as 

 known. 



^Martin, C. H., and Robertson, Muriel, "Further Observations 

 on the Cecal Parasites of Fowls with some Reference to the Rectal 

 Fauna of Other Vertebrates." Quart. Jour. Micros. Sci. (London), 

 N. S., Vol. 57, pp. 53-81, 1911. 



2 Berke, Centralb. f. Bakt., etc., Abt. 1, Bd. 58, pp. 32(3-330, 1911. 



