Alexania moerchi is a species of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae.

[1] (Original description in Latin) The shell is ovate, with an elevated spire and is imperforate.

The shell contains 7 slightly convex whorls, obtusely angled at the sutures.

The outer lip is scarcely angled at the back and has a sharp edge.

[2] This marine species occurs off Australia (New South Wales, Queensland) and Japan.