The image shows a group of four bursa tuberosissima shells on a black surface, with a few papers with text written on them in the background.
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The image shows a group of four bursa tuberosissima shells on a black surface, with a few papers with text written on them in the background. The shells are a light brown color with a white underside, and have a curved shape with a pointed tip. The papers have a white background with black text, and the shells are arranged in a neat row.
