Cytharopsis butonensis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

[1] Shuto (1970) referred the Indonesian Mangilia butonensis Schepman, 1913 which may indeed be an aberrant Leiocithara Hedley, 1922, although its narrow shape could indicate that M.M.

(Original description) The shell has an elongately fusiform shape, with a high spire and moderately long siphonal canal.

The base of the body whorl shows very faint spiral striae, more conspicuous on the ribs and a few stronger ones on the siphonal canal.

The columellar margin is slightly concave above, directed to the left below, with a thin layer of enamel.