Phasianella ventricosa, common name the swollen pheasant shell or common pheasant shell, is a species of sea snail, a marine gastropod mollusk in the family Phasianellidae.

[1] The shell of an adult Phasianella ventricosa can be as long as 20–45 millimetres (0.79–1.77 in).

It is a medium weight shell, with rounded whorls.

The basic coloration is brick-red with fawn or cream axial streaks and alternating brown and white spiral lines.

It lives on kelp and under rocks on reefs at depths of about 10 m.