Eulimella buijsi van Aartsen, Gittenberger & Goud, 2000 (original combination) Koloonella buijsi is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

[1][2] The epithet "buijsi" refers to Mr J.P. Buijs, a malacologist from The Hague, the Netherlands, The size of the shell varies between 3 mm and 3.7 mm.

The color of the smooth, slender conical shell varies between whitish to a creamy color.

The teleoconch contains 4½ to 5½ slightly convex whorls with a marked suture and without a spiral mocrosculpture.

The outerlip has an even structure, lacking teeth, and is smooth on the inside.