Ethalia rufula

Ethalia rufula is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

The small, polished shell has a lenticular shape.

It shows almost square bright spots at the periphery and near the suture, and also red angular lines.

The shell contains six slightly convex whorls with deep sutures.

[2] This marine species occurs off Japan.