Ciliates

The following micrographs have been kindly supplied by Dr Alan Warren, Department of Zoology, Natural History Museum, London, UK.

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Amphileptus sp. (possibly A. carchesii), a gymnostome ciliate feeding on the colonial peritrich Carchesium polypinum. Isolated from the mixed liquor of the activated sludge sewage treatment plant at Thames Water's Mogden STW, Middlesex, UK.

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Scyphidia physarum (a peritrich ciliate) attached to the freshwater snail Physa fontinalis. Isolated from the River Crane, Middlesex, UK.

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A closeup of Scyphidia physarum (a peritrich ciliate) attached to the freshwater snail Physa fontinalis. Isolated from the River Crane, Middlesex, UK.