Cyclopyxis cylindrica  Kufferath, 1932

Diagnosis: Shell in the shape of a cylindrical box, chitinous, formed of small scattered mineral grains, with some large graines making more or less marked protrusions. In lateral view, the shell is rectangular with slightly convex curved sides. Pseudostome is slightly pushed into the ventral side.

Dimensions: According to Kufferath (1932): Shell diameter 65—67 µm; height 40 µm; aperture 20—22 µm wide.

Habitat: Freshwater.

Geographical distribution: Africa, Barumbu.