Eucyclotoma carinulata is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

The shell is longitudinally obscurely ribbed, and transversely striated.

The ribs disappear towards the base, where the striae become stronger.

The body whorl is tricarinate, those of the spire bicarinate.

The color of the shell is whitish, maculated with yellowish chestnut.