On the division of trypanosomes in Colisa fasciata (Perciformes) in vivo.

In vivo observation of the division in the trypomastigotes of the fish trypanosome, Trypanosoma trichogasteri, from Colisa fasciata is hereby reported for the first time. The division is initiated with the duplication of the kinetoplast followed by nuclear division and cytokinesis. Contrary to earlier reports, cytokinesis commences from the posterior end and the flagellum originates simultaneously or subsequent to cytoplasmic separation.