The image shows a group of five different types of shells on a black background, with the text "obba planulata bongabona bartsch, 1933" written on them. The shells are arranged in a line, with each one having a unique shape and texture. The colors of the shells range from light brown to dark brown, with some having a glossy finish. The text is written in a bold, white font, making it stand out against the dark background.