\ 
Figs. 
Fig. 
Fig. 
Fig. 
Fig. 
PARASITIC PROTOZOA FROM GEYLON. 87 
15, 16.—Spirocheta tropidonoti, n. sp., in the blood of Tropi- 
donotus stolatus. 
15.—Living organism, beside a red corpuscle. Heart blood. 
16.—Organism dividing into two. (Dry film; absolute 
alcohol, Giemsa.) 
- 17.—Opalina virgula, u. sp., from large intestine of Rhaco- 
phorus maculatus. (Picro-acetic acid, Delafield’s 
hematoxylin.) 
- 18—Small Opalina, from same preparation as preceding. 
Probably a young individual. 
. 19.—Balantidium hyalinum, n. sp., from duodenum of 
Rana tigrina. (Sublimate alcohol, Delafield’s hema- 
toxylin.) 
20.—Spirocheta termitis, n. sp., from the gut of Calotermes 
militaris. Various forms are depicted. (Dry film ; 
absolute alcohol, Giemsa.) 
21.—Nyctotherus termitis, n. sp., from intestine of Calotermes 
militaris. (Picro-acetic acid, Delafield’s hematoxylin 
and eosin.) 
