256 Prof. Minchin, Lieut. Gray, and late Lieut. Tulloch. [July 10, 



Figs. 5—7. — Herpetomonas from gut of Stomoxys; fig. 5, small form with dividing 

 nucleus ; fig. 6, small form showing the posterior position of the 

 blepharoplast, and long intracellular course of the flagellum ; fig. 7, 

 small form, ordinary type. 



Figs. 8 — 10. — Herpetomonas from gut of Stomoxys, non-flagellated forms ; fig. 8, mass 

 of blue-staining protoplasm containing one large chromatin body ; figs. 9 

 and 10, masses of protoplasm containing paired chromatin bodies. 



Fig. 11. — Large cell (probably a leucocyte) from contents of gut of Stomoxys {calcitrans ?), 

 containing in its interior large numbers of disintegrated Herpetomona 

 forms. 



