Portrait of Brachonella spiralis. Heterotrich ciliate with twisted anterior end. Blunt posterior with terminal contractile vacuole. Often with longer tuft of caudal cilia. Densely packed dark granules are usually present in the anterior of the cell. This used to be called Metopus spiralis. From stagnant freshwater with decomposing leaves near Boise, Idaho. Brightfield. This image was taken by William Bourland. He now uses a Zeiss Axioskop 2 with Spot Insight and Spot Flex CCD cameras (Diagnostic Instruments). Image copyright: William Bourland, image used under license to MBL (micro*scope).
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Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere
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