Typically 1.9-2.2mm in height. Shell relatively broad, almost ovoid; with 5 strongly tumid whorls, the last well-rounded and relatively large; mouth-edge delicate, with a transverse furrow just before the aperture.
Ecology and behaviour
Saturated decaying vegetation in marshes and alder fens at the margins of lakes and rivers usually in places subject to flooding. Tolerates acidic conditions.
Distribution and status
Rare