The test primarily consists of idiosomes (self made pieces looking like sausages). A few xenosomes (incorporated grains of sand) are visible. All xenosomes are covered with a coating. indicates 50 µm. Sample from a freshwater pond on the island of Hiddensee (Baltic Sea, Germany). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.
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Wolfgang Bettighofer, www.protisten.de.