A fine, large, complete adult internal mould developed on both sides. A typical variant with the last part of the phragmacone and the body chamber (3/4 whorl) completely smooth. The last 1/3 whorl shows trong uncoiling of the umbilical seam and the peristome with constriction is present on one side and the venter. From Ugle Elv, Jameson Land, E Greenland.
Size: 160 mm
Size: 160 mm