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Genus Acanthocystis Carter, 1863 Diagnosis: Centrohelea with a periplast with tangential plate-scales and external radial spine-scales. Radial spine-scales with a cylindrical shaft, attached to the central part of a radially symmetrical base-plate. Type species: Acanthocystis turfacea Carter, 1863 Remarks: The type species A. turfacea Carter, 1863 has been recorded in both marine, brackish, and fresh waters. Most other species occur in fresh waters. Reference: Siemensma (1991)
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Amoeba proteus var.

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Reticulomyxa hannae

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Velamentofex

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Claparedellus lachmannii

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Claparedellus

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Velamentofex tyrolensis

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