A beautifully preserved specimen with test with four whorls fully developed on both sides. It shows the gradual change from tuberculated ribs on the inner whorls, through large tuberculated ribs interpolated with much smaller ribs, to absence of tubercles on the body-chamber which occupies about 2/3 of a whorl. The strong shevroned keel also shows well. From Wurtemburg, Germany.
Size: 46 mm in diameter
Size: 46 mm in diameter