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Amphitrema stenostoma
Amphitrema stenostoma, 52 µm

Amphitrema stenostoma Nüsslin, 1884

Diagnose: Test ovoid, symmetrical, more or less compressed; composed of a transparent membrane, with adherent foreign bodies; two apertures at opposite poles; large vesicular nucleus; one to several contractile vacuoles; straight filopodia, sparsely branched, radiating; apertures inwardly funnel-shaped narrowed, without outer ring-shaped thickening and constriction of the neck.

Dimensions: Length 55 µm; width 40 µm; breadth 30 µm.

Ecology: in wet or submerged Sphagnum vegetation.

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