Propebela subvitrea is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

It is moderately stout, with a high, regularly tapered, acute spire, consisting of about six rounded whorls.

These are crossed by rather thin, prominent ribs, strongly bent in a sigmoid curve, and having on the lower whorls a rather faint spiral sculpture.

These are strongly convex and a little swollen at the rounded shoulder, which is rarely somewhat angulated, and without a definite subsutural band.

The siphonal canal is nearly straight, a little prolonged, distinctly constricted at its base by the incurvature of the outer lip.