Melanella exilis is an extinct species of sea snail, a marine gastropod mollusk in the family Eulimidae.
Description The length of the shell attains 5.84 mm, its diameter 1.27 mm.
(Original description) The shell is elongate, slender, and polished. There are eight whorls, and the apex is acuminate. The aperture is small, and the outer lip is nearly straight.
Distribution Fossils of this species have been found in Claibornian strata in Texas, USA.
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