Odostomia (Menestho) exaratissima Dall & Bartsch, 1906 Menestho exarata is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

The at least two whorls of the protoconch are moderately large, helicoid, one-half obliquely immersed in the first volution of the teleoconch, the periphery projecting slightly beyond the left outline of the spire.

The periphery and the base of the body whorl are well rounded, the latter sculptured like the space between the sutures, bearing six incised lines which are not quite as strong as those between the sutures.

The aperture is oval, effuse at the junction of the outer lip and the columella.

The columella is short, curved, somewhat revolute, reinforced by the attenuated base.