caption: The image shows three different types of snails on a black background, with the text "Melania vainafa Gould, 1847, Holotype USNM 5557" at the top. The snails are arranged in a triangular formation, with one in the center and two on either side. The shells are a light brown color with a glossy finish, and have a spiral pattern on the sides. The text is written in a bold, white font.