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Cercomonas (sir-ko-moan-ass), gliding flagellates, two flagella insert just below the anterior apex of the cell. The anterior flagellum beats floppily, the posterior flagellum trails against the substrate. Body very flexible and elements may be drawn out as strands behind the moving cells. Common. Lots of species, but the taxonomy is very unstable. Phase contrast.
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Cercomonas (sir-ko-moan-ass), gliding flagellates, two flagella insert just below the anterior apex of the cell. The anterior flagellum beats floppily, the posterior flagellum trails against the substrate. Body very flexible and elements may be drawn out as strands behind the moving cells. Common. Lots of species, but the taxonomy is very unstable. This is a compressed cell surrounded by some bacteria. The light circle with the dark centre is the nucleus with central nucleolus, and the very light region is the contractile vacuole. Phase contrast.
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Cercomonas (sir-ko-moan-ass), gliding flagellates, two flagella insert just below the anterior apex of the cell. The anterior flagellum beats floppily, the posterior flagellum trails against the substrate. Body very flexible and elements may be drawn out as strands behind the moving cells. Common. Phase contrast.
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Cercomonas (sir-ko-moan-ass), gliding flagellates, two flagella insert just below the anterior apex of the cell. The anterior flagellum beats floppily, the posterior flagellum trails against the substrate. Body very flexible and elements may be drawn out as strands behind the moving cells. Common. Lots of species, but the taxonomy is very unstable. The very light region is the contractile vacuole. Phase contrast.
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Cercomonas (sir-ko-moan-ass), gliding flagellates, two flagella insert just below the anterior apex of the cell. The anterior flagellum beats from side to side, the posterior flagellum trails against the substrate. Body very flexible and elements may be drawn out as strands behind the moving cells. Common. Phase contrast.
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Cercomonas, gliding flagellate, with very flexible body, one flagellum projecting anteriorly and moving with a stiff beat, the other flagellum trailing behind. Phase contrast.
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Cercomonas, a common type of gliding flagellate, the body is almost amoeboid, one flagellum extends anteriorly and beats stiffly, the other trails behind the cell while it is moving. Although common, these organisms are very hard to identify. From a freshwater pond near Boise, Idaho. Brightfield.
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Small cercomonad, the bullseye is the nucleus, one sweeping flagellum is directed anteriorly (to the right) and one flagellum trails below and behind the cell.
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Cercomonas: A flagellate with highly flexible body and two anterior flagella. The body may be extended as podia. Movement by gliding. This image was taken by Krishnakumar B. in a sample from an anaerobic bioreactor for organic rich wastewater treatment in Regional Research Laboratory-Trivandrum (CSIR-India).
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Cercomonas longicauda Dujardin, 1841. Cercomonad cells which are about 10 microns long, spindle shaped and flexible. Two flagella insert subapically into a small subapical depression. The anterior flagellum is non-acronematic and about 2.5 times the cell length, and its most basal part adheres to the anterior part of the body. The acronematic posterior flagellum is about 3 times the cell length, adheres to the length of the cell and has a slow sinusoidal beat during swimming. The cell moves by gliding or swimming. Strands of cytoplasm are drawn out behind the cell during movement.
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