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Description :

Monocercomonas are small trichomonad flagellates (5-15 µm) with three anteriorly directed flagella and a recurrent one slightly adhering on its proximal part to the cell body. Well developed axostyle protruding posterioly. Parabasal body rod-, disc- or V-shaped. About 20 species occurring in the intestinal tract of vertebrates such as M. caviae from the caecum of guinea pigs (Nie 1950) or invertebrates such as termites, roaches, tipulid larvae. Unidentified species from the gut of the cockroach Parasphaeria boleiriana from Brazil (interference contrast)