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الوصف:

Pendulomonas (pen-dew-low-moan-ass) adriperis Tong, 1997. Cells are ovoid or droplet-shaped, about 4 to 9 microns long, 2.5 to 5 microns wide, somewhat flexible and not flattened. The cells have two flagella similar in length emerging subapically (about one third of the way down). The flagella are slightly longer than the cell and not acronematic. The anterior flagellum projects in front of the body and beats with an asymmetric pattern, and the posterior flagellum trails behind the body and may be held in a curve or obliquely. Sometimes, the posterior flagellum beats stiffly and rapidly in non-swimming cells. The cells usually swim by slow rotating movements and the cell bodies wag. When the cells swim rapidly, the anterior flagellum beats quickly and cells do not wag. The cells may attach to the substrate by the tip of the trailing flagellum. In attached cells, the cells may wag or tremble rapidly. Commonly observed in enrichment cultures.