Guraleus alucinans is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

(Original description) This is one of the most widespread and variable of Australian marine temperate gastropods.

The short fusiform shell contains 7–8 obtusely angulated whorls.

This species may be distinguished by its thick, rounded, straight ribs.

Some specimens are nearly white ; in others numerous sienna brown spiral lines, which extends from the angle down to the suture, cross the ribs, interrupted by the interstices, as in Guraleus pictus.