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Cothurnia imberbis.
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Cothurnia crystallini.
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Los Limites, La Rioja, Spain
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Logrono, La Rioja, Spain
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Portrait of Platycola. This peritrich ciliate resides in a simple non-valved lorica with a curved neck. The lorica adheres to the substrate along its length. Most often two individuals per lorica. From freshwater pond with abundant filamentous algae near Boise, Idaho. Oblique illumination.
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Cothurnia nodosa.
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Ribadelago, Castille and Leon, Spain
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Los Limites, La Rioja, Spain
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Logrono, La Rioja, Spain
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Platycola, a loricate peritrich. This one forms a flattened lorica with apical apertures through which the cells extend while feeding. The cell cannot be seen clearly. The lorica appears transparent when first formed but gets darker with age. From Lake Donghu, China. Phase contrast micrograph.
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Thuricola (thurr-ick-owe-la) is a peritrich ciliate which lives within a lorica. Contractile and this cell has withdrawn into the lorica. A flap has closed over the contractile cell and this features distinguishes this genus. Differential interference contrast.
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Cothurnia pyxidiformia (Udckem).
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Logrono, La Rioja, Spain
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Madrid, Madrid, Spain
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Platycola, a loricate peritrich. This one forms a flattened lorica with apical apertures through which the cells extend while feeding. Two contracted cells lie inside the lorica. The lorica appears transparent when first formed but gets darker with age. From Lake Donghu, China. Differential interference contrast micrograph.
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Logrono, La Rioja, Spain
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Platycola has mounted its lorica upside down on the Hyponeuston, the aquatic area closely attached to the water surface. Obviously the water´s surface tension was more attractive than the petri dish ore bunches of filamentous algae. Sample from a little creek near Kiel. This image was taken using Zeiss Universal with Olympus C7070 CCD camera.