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Litostomatea: Haptoria: Haptorida: Didiniidae

Didinium
Stein, 1859

Genus: Cell body equipped with a short cone-shaped snout; cytostome forms only when feeding; somatic ciliation is reduced to two narrow bands encircling the body, one equatorially and the other anteriorly; macronucleus long, sausage- or horseshoe-shaped (Carey, 1992).
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Didinium
Didinium
87 x 62 μm
Saitama, 1999

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Didinium
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