Exomilus dyscritos is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

A co-type shows a brown tinting of the two carinae and of that part of the axial ribs connecting them, most marked at the tubercles of junction.

The protoconch contains two , homostrophe, convex whorls with 20 fine spiral incisions ending abruptly in a varix.

The body whorl is oblong with two median rounded carinae, the upper larger, more prominent, forming the angulation (in the spire whorls), the lower producing the upper margin of the suture, tuberculated by the axial ribs, which cease at the lower one.

The outer lip begins at the lower carina and is concavo-convex to the anterior notch.