Chilomastix mesnili – Trophozoite (10-15 µm X 4-7 µm) in stools

France, CHU Dijon Parasitologie-Mycologie

Only 3 forward-oriented flagella and a very large nucleus are visible on this pic. Characteristic morphology features of C. mesnili are a cytostome, a typical curved cytostomal fibril, and a pointed posterior tip.