This amoeba is a very slow mover. It projects a wide pseudopodium in the direction it wants to move. In these images, the movement was to the upper right-hand corner. Its size is roughly 45 -50 micrometers in diameter. I believe that it is a testate amoeba due to the pile of material moving along with it. Focusing through the subject (bottom image) to the top shows the conglomeration of spherical objects that would form the test. It is not the exquisite assemblage found in some testate amoeba. Subject found in pond water.
Leitz DIAVERT microscope with 40x NPL achromat and Zernike phase contrast.
Nikon D800 with a Diagnostic Instruments 1X projection lens.
Modified Vivitar 283 flash.
Amoeba - Volume 2 -Testate amoeba.
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Amoeba - Volume 2 -Testate amoeba.
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