Lioglyphostoma adematum is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
The length of the shell varies between 7–10 mm (0.28–0.39 in).
This marine species occurs off Guadeloupe and in the Atlantic Ocean off Northern Brazil; fossils have been found in Pliocene strata of the Bowden Formation, Jamaica; age range: 3.6 to 2.588 Ma.
