Pseudomelatoma torosa is a species of predatory sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
The whorls show an angulated shoulder bearing nodulous terminations of about ten short oblique ribs. There is no spiral sculpture. The color of the shell is burnt-brown, under an olivaceous epidermis. The nodules are whitish. The aperture is brown.
The shell of the subspecies P. t. aurantia is orange-colored, sometimes spirally striate.
