Cyphoderia ampulla, Harderbos, Netherlands

Cyphoderia ampulla (Ehrenberg, 1840)

Diagnosis: shell elongated pyriform, colorless or faintly yellow-brown, composed of numerous small circular scales, circular or faintly compressed in cross-section; aperture circular or broad-elliptical; curved neck; fundus hemispherical or with a mammilated apex; plasma with many dark granules; nucleus large, granular; fine straight filopodia.

Dimensions: literature (61)-90-190 µm; my measurements

Ecology: in wet mosses, sphagnum and debris of shallow waters.

Remarks: a variable species.

Cyphoderia ampulla
Cyphoderia ampulla
Structure of the shell wall as visible with a 40X objective – Crailoo, Netherlands
Cyphoderia ampulla
Cyphoderia ampulla
Cyphoderia ampulla, elongated shell
Cyphoderia ampulla
Cyphoderia ampulla
Cyphoderia ampulla, right: with mammilated fundus
Cyphoderia ampulla
Cyphoderia ampulla, 115 µm – Laegieskamp, Netherlands
Cyphoderia ampulla
Cyphoderia ampulla
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