WIM VAN EGMOND / SCIENCE PHOTO LIBRARY WIM VAN EGMOND / SCIENCE PHOTO LIBRARY
Stentor coeruleus heterotrich ciliate, differential interference contrast (DIC) light micrograph. S. coeruleus is one of the largest ciliates, reaching up to 2 millimetres long. Magnification: x63 when printed 10 centimetres high.
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