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Oligohymenophorea (formerly Nassophorea): Peniculida: Parameciidae

 Paramecium caudatum
Ehrenberg, 1838

Intact cells

Paramecium caudatum intact cells Genus: Cigar- or foot-shaped; a single macronucleus and 1 to several vesicular or compact micronuclei (Kudo, 1966).
Species: 180-300 μm long; a compact micronucleus; two contractile vacuoles (Kudo, 1966). Cylindrical or cigar-shaped; rounded anteriorly, pointed posteriorly; one large compact micronucleus ("caudatum" group) approximately 8 μm diam.; two contractile vacuoles; 170-290 μm long (Wichterman, 1986). Elongate, rounded anteriorly, pointed posteriorly; caudal cilia present; 180-280 μm long; a single macronucleus with a single micronucleus; two contractile vacuoles (Carey, 1992).
Paramecium caudatum, an intact cell, composite photo, cell body μm long, μm wide, x 1000, Japan, 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 :
Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells Paramecium caudatum, intact cells

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