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Description of Paramecium caudatum

Peniculine ciliate, 120-330 micrometres long (usually 200-300 micrometres). Body elongate, somewhat stiff, with rounded anterior; posterior tapering to a blunt point. Tuft of longer cilia at posterior; somatic ciliation otherwise uniform. Long oral groove, leading to deep buccal cavity lined with cilia. Two contractile vacuoles with stellate appearance (radial canals). Numerous trichocysts. Single ovoid macronucleus. Bacterivorous. Very widespread and common in salt, brackish and freshwater.


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Source: BioPedia

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