A very fine complete adult internal mould, fully developed and beautifully preserved on both sides. It shows the typical ribbing and the sutures in excellent detail. the last suture is visible and the last few are approximated. The body chamber occupies 1/2 a whorl, shows uncoiling of the umbilical seam and terminates with a constriction ad flare with the peristome complete on one side and the venter. From England, UK.
Size: 47mm diameter
Size: 47mm diameter