440 



PROTOZOOLOGY 



Genus Haemoproteus Kruse. Gametocytes in erythrocytes, 

 with pigment granules, halter-shaped when fully formed (hence 

 Halterium Labbe); schizogony probably in viscera of vertebrate 

 hosts; sexual reproduction in blood-sucking insects; in birds and 

 reptiles. 



H. columhae Celli et Sanfelice. In the pigeon, Columba livia; 

 widely distributed; schizogony in endothelial cells of capillaries of 

 lungs and other organs; sexual reproduction in, and transmission 

 by, Lynchia maura, L. hrunea, L. lividicolor, L. capensis and 

 Microlynchia fusilla. 



Fig. 201. The life-cycle of Leucocijtozoon anatis (Brumpt, modified), 

 a-c, development of macrogamete; d-f, development of microgametes; 

 g, fertilization; h, ookinete; i, j, ookinete piercing through the stomach 

 wall; k-m, development of sporozoites; n, sporozoites entering endo- 

 thelial cells; o-r, schizogony. 



