Munditia meridionalis is a species of small sea snail, a marine gastropod mollusk, in the family Liotiidae.

The delicate, white-gray shell has a depressed trochoidal shape and is deeply umbilicate.

Around the umbilicus, likewise, a third keel, crenulate, and not so acute, revolves.

The dark red-brown operculum is multispiral with a not quite central nucleus.

A pale straw-coloured epidermis covers the whole surface uniformly.