caption: The image shows two small shells on a black surface next to each other, with a card with text and a barcode beside them. The text on the card reads "Siphonaria luzonica reeve, 1856". The shells appear to be of various sizes and shapes, with some having a smooth, glossy finish and others having a more rounded shape. The card has a white background with black text, and the barcode is located at the bottom of the card.