Stomatella decolorata Gould, 1848 (original combination) Pseudostomatella decolorata, common name the coloured stomatella, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

The four whorls form an acute, moderately elevated spire, somewhat crenulated at the sutures.

Beneath it is somewhat imbricated upwards, and barred in the intervals by the lines of growth, which do not pass over the ridges.

One-half the breadth of the base adjoining the columella is plain, without striae, and banded by a raised and milk-white line.

[4] This marine species occurs in the Central Pacific and off Japan and North Australia