Cirsonella carinata, common name the ridged false-top-shell, is a species of small sea snail, a marine gastropod mollusk in the family Skeneidae.

The minute, smooth and glossy, cream-colored shell has a turbinate shape.

The body whorl is bluntly keeled at the periphery.

There is a sculpture of dense spiral microscopic striae.

The umbilicus is narrow and deep, and it is surrounded by a callus funicle which expands anteriorly to join the simple lip in an angular lobe.