Glyphostoma rugosum is a species of sea snail, a marine gastropod mollusc in the family Clathurellidae.

[1] The outer lip is thickened and toothed.

The anal sinus is large and rather deep.

The color of the shell is whitish, with a chestnut band at the suture, obscurely indicated on the middle of the body whorl.

[2] This species occurs in the Pacific Ocean along Madagascar.