Cymbiola chrysostoma is a species of sea snail, a marine gastropod mollusk in the family Volutidae, the volutes.
The length of the shell attains 46 mm.
(Original description) The shell is ovate and possesses a clean white base, patterned with angulated chestnut lines and dark spots. The whorls are uniquely crowned by a series of short, concave spines that give the shell a rugged, defensive profile.
The apex is thick and obtuse, with a smooth texture that contrasts with the armored appearance of the lower whorls. Internally, the aperture is a rich, striking golden hue.
This marine species occurs off Sulawesi, Indonesia