Borsoniidae

Bellardi, 1875

The medium to large-sized shells are fusiform to biconic in shape.Their size has a wide range (between 5 mm and 80 mm). The shell can be longitudinally coarsely ribbed, but axial ribs are sometimes obsolete to absent. The smooth columella has a strong (one to three plicae) to obsolete plication upon the middle. This plication varies within genera.

Zemacies

Finlay, 1926

Zemacies queenslandica