GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Light micrograph of a living Trithigmostoma sp. ciliate feeding on Navicula sp. diatoms (brown). Trithigmostoma has a specialized ingesting organelle, a cytopharyngeal basket, to ingest microalgae. Sample out of a Brookside habitat. Microscopic contrast technique: Differential interference contrast. Magnification 600x when printed 10 centimetres wide.
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