Syrnola thelma is an extinct species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

It has a smooth appearance, except for incremental lines.

The outer lip is simple and blunt.

The base of the shell rounds into a strongly twisted short pillar.

[1] A fragment of the shell of this brackish water species has been found near Alexandria, Louisiana.