OF THE ALIMENTARY TRACT 



193 



The organism grew well for four days in ascitic 

 fluid diluted with 4 parts of 0.9% sodium chloride 

 solution, ranging in size from 3 microns to 10 mi- 

 crons in the dividing forms. Division was by longi- 

 tudinal fission, the nucleus apparently passing 



Fig. 29. — Triccrcomonas and Enteromonas. 



A, B, C and D, trophozoites, E, cyst, of Tricercomonas intesti- 

 nalis. F, G, H and /, Enteromonas from the guinea pig. C, D 

 and /, dividing forms. Drawings from specimens stained by iron- 

 haematoxylon. x 1600. 



through mitosis, the two halves of the dividing body 

 being equipped with nucleus and flagella before the 

 body completed division. 



The parasite has been cultivated in Boeck's L. 

 E. A. medium by Boeck (1924) and Thomson and 

 Robertson (1925). 



