Tropaeas is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

[1] The surface of the shell is marked by strong axial ribs.

The intercostal spaces are spirally pitted.

The early teleoconch whorls are sculptured differently from the later ones.

[2] The Indo-Pacific Molluscan Database also includes the following species:[3]