26 o 
EXPLANATION OF PLATE XXI 
The figures are slightly diagrammatic. Magnification of figs, 
i and 2 about 1,800 diameters; of figs. 3 to 9 about 2,000 diameters. 
Figs. 1 and 2. Diagrams of male and female gametocytes of Leuco- 
cytozoon lovati. The male gametocyte (fig. 1) is usually 
slightly smaller than the female (fig. 2), and its cytoplasm 
is hyaline. Chromatoid granules often occur at the ends of 
the oval or round parasites. The host cell has become 
spindle-shaped in each case, with its nucleus pushed to one 
side by the parasite. 
F , §f s - 3 t° 9 - Diagrams of schizogony of Leucocytozoon lovati , as 
seen in smears of the spleen of the avian host. 
Fig- 3 - Schizont, with remains of the host cell at either pole 
and host-cell nucleus to one side. 
Fig. 4. Uninucleate schizont, with host cell almost entirely- 
absorbed except for slight remains of the host-cell nucleus 
to one side. 
Fig- 5 - Schizont, showing nuclear multiplication. Very 
slight remains of host-cell nucleus on the right side. 
Fig. 6. Schizont in process of formation of merozoites. 
Fig- /- Schizont showing merozoites differentiated within. 
Fig. 8. Merozoites beginning to escape from schizont. 
Fig- 9 - Group of free merozoites. 
