Cyclopyxis intermedia Kufferath, 1932

Diagnosis. Shell brown, usually circular in ventral and dorsal view, more than hemispherical in lateral view (height/diameter = 0.72); lateral sides evenly rounded; dorsal side usually flattened, composed of xenosomes more distinct and rough on dorsal surface than on smoother ventral half. Pseudostome in center of ventral surface, distinctly and evenly invaginated, perfectly or roughly circular, with edge covered by rather regularly arranged, small xenosomes.

Dimensions: According to Kufferath (1932): Shell diameter 110—220 µm; height/diameter ratio 0.72. My measurements: 121—212 µm.

Habitat: Freshwater and soil, mosses. Probably cosmopolitan.

Geographical distribution: I found specimens at Landgoed Groeneveld, Baarn.