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Rh Parasites of Uncertain Zoological Position resembling Leishmania

Hæmocystozoon braziliense was found by Franchini in the blood of a man from Brazil. The parasites are sometimes oval, the size of a red blood-cell, containing a large nucleus, a variable amount of pigment, and one

Fig. 240.—Diagram of the classification of the trypanosomes and allied flagellates. (After Wenyon.)

or more centrosomes, and sometimes a terminal flagellum arising from a blepharoplast; sometimes non-flagellate and very minute forms were found in the red cells. In a liver puncture, round, clear and encysted