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BIOLOGY OF THE PROTOZOA 



Fig. 97. — Trypanosoma gambiense, one cause of African sleeping sickness. Normal 

 individual and successive stages in division of blepharoplast, nucleus and cell. (After 

 Calkins.) 



Fig. 98. — Division of Lophomonas blatiarum. A, Nucleus leaving the old calyx, 

 centrioles and parade smose pre.sent; B, the nucleus at the posterior end of the cell, 

 divided ; C, development of daughter-calyces and bundles of flagella. (After Janicld.) 



