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world of amoeboid organisms

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I found this amoeboid several times in a freshwater pond (Crailoo, the Netherlands). The cell is small, about 10 µm in diameter, with 3-6 granulopodia, extending from one side of the cell, thus resembling a comet. The granulopodia are retractive. When disturbed by a passing protist, they can retract extremely fast, just like some helizoans do. After a short time, the granulopodia stretch again. All observed specimens (n=4) were surrounded by debris.

Stretched granulopodia
Retracted granulopodia
Recollected in 2020
  • Last updated April 13, 2020
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