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Assulina (ass-you-line-a) a testate amoeba with a subapical mouth located on the ventral surface of the slightly flattened lorica. Common in mosses. Phase contrast.
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Quadricilia rotundata (Skuja, 1948) V+rs, 1992. Cells are 5-9 x 10-15 microns, globular cells 10-20 microns in diameter. Cell globular, or nearly so, with 4 (-8) unequal, smooth, acronematic flagella inserted anteriorly in a shallow depression. The flagella are 1-3 times the diameter of the cell body. Many thin, branched pseudopodia may be produced from any point of the cell surface. Cytoplasm sometimes highly vesiculate, nucleus central or in the cell anterior.
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ATCC culture 50636.
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Villoslada de Cameros, La Rioja, Spain
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Galende, Castille and Leon, Spain
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Altuzarra, La Rioja, Spain
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Ribadelago, Castille and Leon, Spain
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Hoyo de Manzanares, Madrid, Spain
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Muelas del Pan, Castille and Leon, Spain
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Franceses, Canary Islands, Spain
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Lumbreras, La Rioja, Spain
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Lumbreras, La Rioja, Spain
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Covaleda, Castille and Leon, Spain
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San Martin De Castaneda, Castille and Leon, Spain
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El Maillo, Castille and Leon, Spain
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Canencia, Madrid, Spain
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Euglypha (you-g-lie-fa) is a widespread and common testate amoeba. This one was found in a sample of moss, and this is a habitat in which testate amoebae are common. The aperture is to the top of the image. The test is made up of scale arranged a bit like fish scales, and their are marginal spine scales. This test no longer contains an amoeba. Phase contrast.
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Abollifer prolabens Voers, 1992. The cell is about 8-12 x 10-20 microns It is ovoid-oval and dorso-ventrally flattened with a deep anterior or depression into which the flagellum inserts. The sides of this depression are swollen. The cell surface is rigid and granulated, the cell appears opaque and probably has a pellicle. The cell moves by gliding, but it may detach from the substrate and jerk through the water with an irregular sinusoidal flagellar beat, a second shorter trailing flagellum is sometimes present.
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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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Ribadelago de Franco, Castille and Leon, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Lumbreras, La Rioja, Spain