200 



ESSENTIALS OF BACTERIOLOGY 



the so-called gametes or sexual types. In the tertian and 

 quartan varieties these are not very different from the mature 



THE 



MOSQUITO PHASE 



Fig. 100. Schema showing the human and mosquito cycles of the 

 malarial parasite: A, Normal red cell; B, C, D, E, red cells containing 

 amebulasormyxopods; F, G, H, sporocytes; ]', K', L/, M', microgame- 

 tocytes or male gametes; J", K", L", M", O, macrogametocytes, or 

 female gametes; N', M', microgametes; P, traveling vermicule; Q, 

 young zygote; R, S, zygotomeres; T, blastophore; U, mature zygote 

 (modified from Blanchard's diagram illustrating life-cycle of Coccidium 

 schubergi) (Rees, in "Practitioner," March, 1901). 



organisms, but the estivo-autumnal gametes are crescentic in 

 shape and very characteristic. 



