Oscilla somersi is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.[1]
The shell grows to a length of approximately 3 mm. The shell is conical and has strong spiral cords and a distinctly visible columellar fold.
This marine species occurs in the Caribbean Sea, Gulf of Mexico, Bermuda, Bahamas, and southeast Brazil.