The base of the shell is well rounded, marked like the spire.

The base of the shell is rather long, and well rounded.

The base of the shell is slightly prolonged and well rounded.

The periphery and the base of the body whorl well rounded.

The base of the shell is well rounded, crossed by six spiral cords.

The base of the shell is short, and well rounded.

The base is somewhat prolonged, well rounded, and marked like the spire.

The base of the body whorl is long, well rounded, and strongly inflated.

The base of the body whorl is short and well rounded.

The base is short, well rounded and impressed at the umbilical area.