Eulithidium adamsi is a species of minute colorful sea snail, a marine gastropod mollusk in the family Phasianellidae, the pheasant shells.

The Columella has with a white callus which is somewhat distended at the slightly impressed and grooved subperforate or imperforate umbilical region.

The color of the shell is white, yellow or pale rose, more or less clouded longitudinally with rose, orange or brown, sometimes only with subsutural and peripheral series of short flammules.

The entire surface is closely and regularly punctate with pink or orange, and white.

[2] This species occurs in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles.