Schwabia spec.

Diagnosis. Shell grey or yellow, ovoid, rigid, slightly compressed; organic matrix, densely agglutinated with small and flat mineral particles; aperture somewhat cut off, small, circular or oval, without any thickened rim; nucleus vesicular, relatively large, finely granulated with one nucleolus, eccentric and small. Filopodia long and branching, with small veils and granules along the base of the filopodia. Living cells collect a large bunch of debris around their pseudostome.

Dimensions: shell c. 60 µm.

Ecology: I found these specimens in moss on a rock in a forest near Saarburg, Germany. Cells easily multiplied in wet mounts kept in humidity chambers. The granules in the hyaloplasm are only visible in phase contrast.