† Aclis costellata F. W. Hutton, 1885 Zeradina costellata is an extinct species of sea snail, a marine gastropod mollusk in the family Vanikoridae.

The first two are smooth and polished, the rest spirally grooved.

The spire whorls with the two posterior spiral grooves are deeper and broader than the others, and the rib between them is raised higher.

The aperture is ovate and less than half the length of the shell.

[2] Fossils of this marine species were found in Tertiary strata at Whanganui, New Zealand.