Cirsonella densilirata is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Its sculpture consists of numerous fine microscopic spiral lirae.

The base of the shell is convex, with an impressed umbilical area.

The arcuate columella is slightly expanded toward the narrow perforation, sometimes partly concealing it.

[2] This marine species is endemic to New Zealand and was found off South Island.