Typically 1.7mm to 2.1mm in height. Shell rather barrel-shaped; mouth edge scarcely thickened, outer lip just perceptively reflected. No external rib or flexure behind lip. Mouth rather rounded, without teeth, or occasionally with a vestigial parietal denticle only. Shell pale reddish-brown, very smooth and glossy.
Marshy ground: characteristic of calcareous flushes on north facing mountain hillsides.