ugLY. | Trypanosoma gambiense 77 Glossina palpalis. oad 
Figs. 25—38 represent round and irregularly-shaped forms of the parasite, taken from 
the eighth to the forty-sixth day of development. It is impossible to say what is exactly 
the origin of these forms—whether by the segmentation of large masses, or simply by 
the division and subdivision of irregular forms. Some of the examples figured are 
evidently dividing, as they show several nuclei and flagella. Whether the round 
aflagellar forms correspond to the so-called “latent” forms of various writers it is 
impossible to say. Those possessing flagella were active during life. In our opinion, 
they may be looked upon as part of the degenerative processes which are constantly 
taking place in the intestine of the fly. 
x 2000.1 
Fia. 39.—Trypanosoma gambtense from hind-gut, 10 days after infected feed. 
Fic. 40.—7. gambiense from fore-gut, 17 days after infected feed. 
Fie. 41.—T. gambiense from fore-gut, 17 days after infected feed. 
Fra, 42.—T7. gambiense from hind-gut, 34 days after infected feed. 
Fie. 43.—T. gambiense from mid-gut, 34 days after infected feed. 
Fie. 44.—T. gambiense from hind-gut, 46 days after infected feed. 
Figs. 39—44 represent what appear to us to be degenerative forms of the “normal 
reproductive type.” They are of all sizes and shapes, and the cell-contents are scattered 
over with broken-up nuclei, or at least granules of some stainable substance. Figs. 39, 
43, and 44 are also vacuolated. 
