Trypanosoma brucei ssp.
Trypanosoma brucei gambiense.
Trypomastigotes in mouse thin blood film (Giemsa's stain, oil immersion). They
have a small kinetoplast at the posterior end of the body, a central nucleus,
and a flagellum that emerges at the anterior end. One organism demonstrates
a characteristic feature of African trypanosomes- the presence of dividing forms
in the blood stream.