Fig. 2
The six major morphotype classes of trypanosomatids. a Trypomastigote. b Epimastigote. c Amastigote. d Opisthomastigote. e Choanomastigote. f Promastigote. Forms a and b represent the juxtaform superclass and possess a flagellum that is laterally attached to the cell body. Forms d, e and f represent the liberform superclass and do not possess a laterally attached flagellum. Amastigotes (c) exist for both liberform and juxtaform trypanosomatids