35 
In the presegmenting forms the pigment has not yet 
condensed into a single block, and the distribution of 
the chromatin masses is still irregular. In fresh pre¬ 
parations the typical £ daisy ’ forms can be clearly 
seen (Fig. 8). 
Gametes 
Gametes are sexual parasites. They completely 
fill the cell, and are distinguished from adult asexual 
forms (Schizonts) by (i) their larger size, (2) by more 
abundant pigment, (3) by the fact that there is only 
one fairly large chromatin mass, whereas in an asexual 
form of nearly equal size the chromatin has already 
Fig. 9. Malignant Tertian Gametes (partly after Maurer). 
Right-hand corner: Spherical body (fresh) 
begun to divide into several portions (presegmenting 
stage). The different staining reactions of male and 
female are practically identical for all species. The $ 
being the fertilizing cell contains much nuclear matter 
staining red, while the ? , being the nutritive cell, 
contains much protoplasmic matter staining deep 
blue. 
1. Malignant Tertian (Fig. 9).— 
