caption: The image shows three different types of oysters on a black background, with the text "Patella Lottia, Scabra Gould, 1846, Holotype USNM 584000du" written on it. The oysters are arranged in a triangular formation, with one oyster in the center, two on either side, and one on the right side. The background is a deep black color, providing a stark contrast to the oysters.