Aliceia aenigmatica is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

(Original description in Latin) The shell is tall, remarkably thin, glossy, and transparent, with a broad and deep umbilicus.

The spire is elevated and turreted, consisting of 7 convex whorls that are stepped and clearly separated by an impressed suture.

In the body whorl these ribs disappear, but the keel remains and is decorated with widely spaced, arched scales that curve forward.

[2] This marine species occurs off the Azores at bathyal depths (1800-1980 m); also off the coast of Brazil.