Phasianella australis, common names the Australian pheasant, painted lady, and pheasant snail, is a medium-sized to large species of sea snail with a calcareous operculum and a colorfully patterned shell, a marine gastropod mollusc in the family Phasianellidae.

The rather thin shell is elongated and has a pointed-ovate shape.

The long-ovate aperture is somewhat pyriform and forms usually less than half the total length of shell.

The columella shows more or less a white shining callus.

The surface of the shell is variously longitudinally clouded and transversely articulated with red and purple olive on a polished flesh-colored, cream or white ground.