Spirotropis tmeta is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.

[2] (Original description) The incomplete shell of the holotype consists of a mere fragment of two whorls, but with very marked features.

It is evidently high and narrow, with short and numerous whorls, which are sharply but broadly angulated very much above the middle.

The angulation is raised into a keel by rounded tubercles, which are the origin of narrow, curved, very oblique ribs, of which there are twelve on the body whorl.

[3] This species occurs in the demersal zone of the tropical Western Atlantic Ocean (found off Pernambuco at a depth of 640 m.)