Diagnosis: Shell spherical, agglutinated with some small mineral particles; aperture relatively large, irregularly circular, nucleus hard to detect. Filopodia long, branching and occasionally anastomosing.
Dimensions: Diameter c. 30 µm, aperture c. 9.8 µm (n=1).
Ecology: shallow freshwater pond, Crailoo, the Netherlands (2018).
Remarks: Filopodia typically retract in Z-shape.