Apogromia verbrugghei De Saedeleer, 1934
Diagnosis: Shell hyaline, small, pyriform or retort-shaped, double-sided symmetrically, with one side fastened to the substrate; outline sometimes irregular or angular. Shell with a distinct neck. Pseudopodia granular, very thin, and anastomosing, thus forming a network.
Dimensions: De Saedeleer (1934): shell 8.5-12.7 µm. My measurement: c. 9 µm (n=3).
Ecology: freshwater; pond along the Belgian coast; peat bog in Austria, Kromme Rade, the Netherlands