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Keywords from Image Description:
Geomalacus maculosus shell. Drawing of the internal shell of Geomalacus maculosus Taylor archive org Monograph of the land and freshwater Mollusca of the British Isles Testacellidae Limacidae Arionidae Taylor Brothers Leeds page figure Robert Francis Scharff Published by John William Taylor UK PDold PDoldauto Geomalacus maculosus