Egilina mariella is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

It is umbilicated, regularly conic with an obliquely truncated apex and deeply channeled sutures.

The intercostal spaces are smooth, about as wide as the axial ribs, decidedly depressed in the middle—that is, between the bead at the summit and the nodules at the periphery.

Both the spiral lirations and the spaces between them gradually diminish in width from the periphery to the umbilical area.

The parietal wall is covered by a thick callus, which gives the periostracum a continuous appearance.