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Difflugia guttula
Difflugia mica, from Frenzel 1892

Difflugia mica  Frenzel 1892

Diagnosis: Test ovoid, organic, loosely covered with small mineral platelets.

Dimensions: Length 35-40 µm; width 25 µm.

Ecology: Freshwater, pond. Cordoba.

Remarks: The description was made after one single specimen.

Difflugia guttula
Difflugia mica anulata, from Schönborn, 1962

Difflugia mica var. anulata  Schönborn, 1962

It differs from the typical form by the presence of a thick cushion around the mouth. The length of the test is 40–50 µm, the width of the test is 34–36 µm, the diameter of the pseudostome is 16–22 µm.

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