CULIGlM, 
571 
with, this saliva will pass some of the sporozoites, which will thus be 
introduced into the blood of the person bitten. Once there, they enter 
Fig 370.—-Diagram showing the two ways in which the malaria parasite multiplies. B 
shows the asexual cycle in the blood-corpuscles of man. On the left side are shown 
crescents (at C) being sucked up by a mosquito. These develop into male and female 
(at M) in the mosquito’s stomach (shaded black). The fertilised female encysts on 
the stomach-wall, and from her burst forth a family of sporozoites (at S) which 
settle in the mosquito’s salivary gland (shown by the large arsow). If the mosquito 
now bites someone else, these sporozoites, injected with its saliva, infect the blood- 
corpuscles of the person bitten. Here they grow, and while some pursue the cycle B, 
some may become crescents and be sucked up by another mosquito, to go through 
the sexual cycle in its body. 
