Heterocithara erismata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

Its colour is pale cream, spotted with square dots of raw sienna upon the ribs between the spirals.

The radials are prominent, close-set, discontinuous ribs, wider spaced on the back of the body whorl, amounting to nine on the penultimate.

The spirals are chiefly apparent as beads upon the ribs, but suddenly enlarge upon the snout to massive tubercles.

[2] This marine species is occurs off Hawaii, Réunion and Australia (Queensland).