Curtitoma ovalis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

The protoconch is relatively big, with a blunt apex, so that it appears to be obtuse, or rounded, smooth, and glassy.

The whole surface below the protoconch is covered by fine, raised, revolving cinguli (raised spiral lines), separated by slight grooves of about the same width, and by equally fine, slightly sinuous, transverse riblets, coincident with the lines of growth, and receding in a distinct curve on the subsutural band.

The siphonal canal is short and broad, not constricted at the base by any incurvature of the outer lip.

The shell is pale greenish white, and covered by a thin epidermis of similar color.