STUDIES ON CEYLON HAIMATOZOA. 695 
All the remaining figures are from the Glossiphonia, with the 
exception of 16 and 17. 
Figs. 13-15.—Osmic fixed film from leech just about the beginning of 
the middle stage of digestion. 
Fig. 13.—Flagellate stage showing elongated body. 
Fig. 14.—Flagellate, with broad posterior end. 
Fig. 15.—Very long flagellate kinetonucleus at same level as tro- 
phonucleus. 
Figs. 16, 17.—Early flagellate stages from horse leech to show secon- 
dary increase in size and preparation for division. Note the condition 
of the flagella showing outgrowth from the kinetonucleus. 
Figs. 18-27 from the Glossiphonia at middle stage of digestion. 
Fig. 18.—Division stage. Note relative position of the kinetonuclei 
and the condition of the Hagella. The unequal character of the division 
is obvious. 
Fig. 19.—Another division stage. The features are much as in 
Fig. 20.—Early division stage to show condition of kinetonucleus and 
flagella. 
Fig. 21.—Trypaniform individual with broad posterior end and many 
red-staining granules in the protoplasm. 
Fig. 22.—Small broad form. 
Figs. 25 and 24.—Short, rather broad, trypaniform individuals. 
Figs. 25 and 26.—Long slender forms. 
Fig. 27.—Isolated forms of this type are Just appearing in this leech 
which is at the middle stage of digestion. This is very like the final 
type developed at the close of digestion. 
Fig. 28.—Very long slender form. 
Figs. 29 and 30.—From a leech whose digestion is still more advanced 
Note the difference in the type of the organism. 
Figs. 31-36.—Flagellates from leech at end of digestion, this type 
alone is present with very few exceptions. 
