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A small, solid shell mottled yellow or whitish on green. Has a large body whorl and large aperture closed by an operculum. Lives in hard water of lakes, canals and rivers, usually on stones or other solid support.
Ranges across Europe from the Pyrenees and Italy to coastal Finland and eastwards to the Caucasus. Distribution type: European Wide Temperate (63).
Widely distributed in central Ireland in slow-moving water or on lakeshores. It is recorded as far north-west as Glenade Lough, Sligo but is not in the Erne or Lough Neagh catchments (Kerney, 1968).