This fossil species occurs in
Japan and
South Australia. The small, solid shell has a depressed-conical shape. Its height attains 11 mm and its diameter also 11 mm. The shell contains seven
whorls and a wide open
umbilicus. The nucleus is smooth and rounded. The other whorls are tabulate with an almost horizontal surface and the lateral surface vertical and somewhat convex. The
aperture is subcircular. The thin
peristome is continuous. ==References==