Cyclopyxis triangularistoma Decloitre, 1980

Diagnosis: Ventral side exclusively covered with very small mineral grains, giving it a pearled appearance. Dorsal side covered with large grains. Aperture not invaginated.

Dimensions: According to Decloitre (1980): Shell diameter 75 µm; height 60 µm; apertur 12×12×12 µm.

Ecology: Soil.

Geographical distribution: France.

Remarks: Decloitre describes this species as different from Centropyxis trigonostoma Bartos, Centropyxis trilobata Laminger and Cyclopyxis trilobata Bartos.