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Rosculus (ross-cue-lus) a naked lobose amoeba, typically progressing with a single pseudopodium (i.e. is monopodial) hyaline cap is well developed. Nucleus to rear left, contractile vacuole at posterior. Phase contrast.
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Rosculus (ross-cue-lus) a naked lobose amoeba, typically progressing with a single pseudopodium (i.e. is monopodial) hyaline cap is well developed. Phase contrast.
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Rosculus (ross-cue-lus) a naked lobose amoeba, typically progressing with a single pseudopodium (i.e. is monopodial) hyaline cap is well developed. Group of cells. Phase contrast.
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Sainouron (sigh-noo-ron) is a small gliding flagellate from soils. Body elliptical, one trailing flagellum, rarely with an anterior flagellum. This image shows a subapical insertion of the flagellum. The cell shape is somewhat distorted (swollen). Phase contrast.
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Sainouron (sigh-noo-ron) is a small gliding flagellate from soils. Body elliptical, one trailing flagellum, rarely with an anterior flagellum. The flagellum can here be seen to be acronematic (the far end is thinner). Phase contrast.
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Hellkesimastix (hell-keys-ee-ma-stix) a small flagellate, originally reported from soils. With one trailing flagellum and one other short flagellum. Probably,y a cercomonad. Phase contrast micrograph.
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Helkesimastix faecicola Woodcock and Lapage, 1915. Cells ovoid or drawn out, 5-10 microns long and about two-thirds as wide as long. A single flagellum, 2-3 times cell length, inserts at or slightly below the cell apex, is attached along the length of the body and also adheres to the substratum as cells glided. The nucleus is central, and there is a single contractile vacuole towards the posterior. Cells are slightly flexible and the cytoplasm is sometimes drawn out along the trailing flagellum.
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Heteromita (het-err-o-might-a), one of the smaller gliding flagellates, mostly from soils and freshwater habitats. Flattened, two unthickened flagella inserting into a subapical depression in the cell. Anterior flagellum beats with a flopping motion, posterior flagellum drags behind. A cercomonad. There can be considerable variation among cells in a population. Phase contrast.
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Heteromita (het-err-o-might-a), one of the smaller gliding flagellates, mostly from soils and freshwater habitats. Flattened, two unthickened flagella inserting into a subapical depression in the cell. Anterior flagellum beats with a flopping motion, posterior flagellum drags behind. A cercomonad. There can be considerable variation among cells in a population. Phase contrast.
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Heteromita (het-err-o-might-a), one of the smaller gliding flagellates, mostly from soils and freshwater habitats. Flattened, two unthickened flagella inserting into a subapical depression in the cell. Anterior flagellum beats with a flopping motion, posterior flagellum drags behind. A cercomonad. There can be considerable variation among cells in a population. Phase contrast.
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Phase contrast image showing two flagella of similar lengths inserting near the anterior pole of rhc ell. The light area posterior to the point of flagellar insertion is the nucleus. This flagellate eats bacteria - such as those around it.
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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 crassicauda Dujardin, 1841. Cercomonad cells which are elongate-ovate, from two to two and a half times as long as broad, its substance granulate, caudal filament usually very thick at its base, tapering to a fine point at its distal end, about equal in length to the body, anterior flagellum finer and longer than the caudal filament, two or three contractile vacuoles, located near the anterior extremity, nucleus subcentral. Length of body 27 microns
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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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