Psittacodrillia diversa is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.

The ribs only occupy the lower two-thirds of the whorl, the remainder being simple.

The spiral striation is fine; that towards the base of the body whorl is a trifle coarser.

The shell is orange-red with darker red spots in the intervals on the whorls.

[2] This marine species occurs off Jeffrey's Bay - East Cape, South Africa