A superb complete adult internal mould with some patches of test. It has 3 whorls fully developed on both sides and shows strong ribbing well. Sutures including the last are clearly visible and the body chamber occupies 3/4 whorl, shows strong uncoiling of the umbilical seam and has a forwards projecting lappett. From South Cave, Humberside.
Size: 40 mm
Size: 40 mm