Schwabia
Schwabia
Schwabia spec.

 

 

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.

 

Schwabia
Details of filopodia
Schwabia
Schwabia
Cell with a bunch of debris; the shell is the vague dark spot.
Schwabia
Schwabia with large collection of debris around its pseudostome. The image below is a photo montage which shows the position and size of the shell in relation to the debris.

Schwabia
Schwabia
Retracting filopodium in Z shape
Schwabia
Schwabia
Schwabia
Schwabia