Eucithara ringens is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.

This short shell with an conical shape has an acuminate apex.

It is delicately sculptured with 8 longitudinally arcuate ribs (12 ribs on the penultimate whorl), latticed by fine, revolving striae (about 23 on the penultimate whorl).

The columella is slightly curved and contains a white callus.

[2] This marine species occurs off Hong Kong