Quadrulella elegans Gauthier-Lièvre, 1954

Diagnosis: Shell elongated claviform, almost lageniform, with rounded base, flanks stretching regularly towards the pseudostome, which is truncated straight and provided with a thin, but clean chitinoid bead. Towards the first quarter of the theca (starting from the pseudostome), two very visible lateral pores are present, marked by a very clear projection of the test wall. In lateral view, the test is elongated claviform, almost with an ogivale fundus; pseudostome little or not indented.
Shell colorless, hyaline, embedded with very small square or rectangular plates, juxtaposed or more or less overlapping; on the neck, they are smaller and more regularly arranged than on the main part.

Dimensions: According to Gauthier-Lièvre (1954): Shell length 90—110 µm; width 48—50 µm; aperture 18—20 µm wide.

Ecology: Sphagnum mosses, among aquatic mosses in a river with high humic acid content.

Geographical distribution: Africa; South America; New Guinea.