Centropyxis constricta var.? Deflandre, 1929 pars

Diagnosis: This species resembles the specimen depicted in drawing 67 in Deflandre, 1929. In ventral view the shell is wedge-shaped, in side view the height is about two thirds of the length. The fundus is neatly rounded and from the apex the anterior side runs more or less in a straight line to the anterior lip. Pseudostome strongly invaginated.

Dimensions: Shell length about 140-160 µm, height 110-120 µm, apertural width about 63-90 µm.

Ecology: Freshwater. Buthan.

Remarks: Several specimens where found in one sample that originated from Buthan.