Circumstella devexa is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.

[1] (Original description by Charles Hedley) The height of the shell attains 3.3 mm.

The very solid, widely umbilicate shell has a turbinate shape with the whorls in transverse section nearly square.

The periphery is flattened, with a keel at the upper and lower angles, the superior crenulated.

[2] This marine species occurs off the Northern Territory and Queensland, Australia