Cyclopyxis puteus  Thomas, 1960

Diagnosis: Shell in general similar as C. kahli, but much larger. One other particular trait is the construction of its pseudostome, which makes this species easy to identify. The aperture of the pseudostome is at the end of a strongly invaginated conical tube or funnel. This aperture is more or less circular with an slightly crenulated and granulated edge. In ventral view, the apertural tube shows a very clear double contour.

Dimensions: According to Thomas (1960): Shell diameter 145—163 µm; height 110—120 µm; aperture 25—35 µm; base of the tube 45—50 µm; length of tube 28—30 µm.

Habitat: Soil.

Geographical distribution: France, Indonesia.