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In a sample from the Tara expedition (Station 68) there were 30 large cells for about 1000 'normal-size' cells.
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Genetic material is shared between two individuals by the formation of a cytoplasmic bridge
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A pair of tintinnid ciliates caught in the act of exchanging genetic material.
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Specimen from the Scripps Canyon area in July 2009
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Lugol's-fixed specimen from the Bay of Villefranche in October 2010.
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This specimen is shown as viewed with transmitted light (left) and epifluoresence (visible light emitted when subjected to ultraviolet light) showing the algae it ate (right panel).
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Claparède & Lachmann's 1858 figure from Plate 9 of Tintinnus quadrilineata, now known as Amphorides quadrilineata
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A common tintinnid ciliate in Mediterranean. It is about 150 microns long. Like other tintiinids, the ciliate cell which resembles an oligotrich ciliate is inside a shell or lorica. Tintinnids feed on phytoplankton, microscopic algae and in turn serve as food for larger plankton organisms such as copepods and fish larvae.
