Bull. U. S. B. F„ 1926. (Doc. 987) 
Figs. 27 to 30.— Cysts showing successive stages in the division of the nuclei. Figures 27 and 28, metaphase; Figure 29, 
anaphase; Figure 30, telophase. X 2700 
Figs. 3l to 35. — Nuclei drawn at a higher magnification to show successive stages in division. X 3150 
Figs. 36 and 37.— Cysts that have recently divided into a number of approximately equal parts. The cyst shown in 
Figure 36 contained 11 cells, three on the lower side not being shown in the figure. X 1800 
Figs. 38 to 40. — An undescribed species of ameba occasionally found in the digestive tract of trout. Figures 38 and 39 
are the trophozoites from the stomach, while Figure 40 is" the encysted stage from the intestine. X 1640 
