Emarginula is a genus of small keyhole limpets, marine gastropod molluscs in the family Fissurellidae.

[1] The oval shell is obliquely conical with a backward-pointing recurved apex.

A distinct anal fasciole extends upwards from this incision.

The surface is latticed, sculptured with radial ribs.

[many],[3] with a wide, rectangular, acuspate rachidian tooth.