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KOFOID AND SWEZY. 



the axostyle (a.v.). A pair of posterior axostylar granules (post. ax. 

 gr.) or a deeply staining ring may be found at the point of emergence 

 of the axostyle from the cytoplasm. 



chr. bus. r, 



mar. fit- 



post, ax. gr, 

 post, ft.. 



FiGURE^B."" Diagrammatic figure of organelles of Trichomonas augitsta 

 Alexeieff. ~ X 1500. Ant. fl., anterior fiagella; ax., axostyle; ax. chr., axo- 

 stylar chromidia; bl., blepharoplast; chr. bus. r., chromatic basal rod or 

 parabasal body; cyt., cytostome; cyt. cAr., cytoplasmic chromidia; mar. fit., 

 marginal filament; n., nucleus; 'post. ax. gr., posterior axostylar granules; 

 post, fl., posterior flagellum; rh., rhizoplast connecting blepharoplast and 

 nucleus; und. ?n., undulating membrane; z'ac. , food vacuole. 



The cytoplasm of this organism is peculiarly mobile and protean 

 in its activity as Kucz;yTiski (1914) has so well shown. This is best 

 seen when the animal is creeping about on a substrate. In Figure C 



