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in vivo portrait of the small shelled amoeba of uncertain affinity, Apogromia pagei (ERTL, 1984).Collected from a rain barrel in Boise, Idaho. April 2006. DIC.
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in vivo portrait of the small shelled amoeba of uncertain affinity, Apogromia pagei (ERTL, 1984).Collected from a rain barrel in Boise, Idaho. April 2006.
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View of the contractile vacuole in diastole (left) and at the end of systole (right) in the small shelled amoeba of uncertain affinity, Apogromia pagei (ERTL, 1984).Collected from a rain barrel in Boise, Idaho. April 2006. Phase contrast.
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Small heterotrophic flagellate of about 15 µm which has four anteriorly directed flagella and bears posterior axopods with extrusomes. Flagella and axopods arise from a centroplast situated on the anterior face of the nucleus. Two free-living species from freshwater habitats which feed on bacteria. Phase contrast.
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Paulinella (paul-in-ella) is a testate amoeba but this species is distinguished by the presence of (usually two) curved endosymbiotic blue green algae. The small aperture of the lorica is to the top of the image. Differential interference contrast.
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Haeckel says: Half the shell, with the enclosed central capsule and the phaeodium, stained by carmine. (The central nucleus dark).
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Haeckel says: Top of a pyramid.
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Haeckel says: A single triangular mesh of the lattice sphere.
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Haeckel says: Distal end of a tube.
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Haeckel says: Left- Distal part of a single radial tube, with the terminal corona. Right- apex of a six-sided pyramid, seen from the inside.
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Haeckel says: Left- A single radial tube. Right: Distal end of a single radial tube.
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Haeckel says: A single radial tube.
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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
