Quinnia rushi is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.

The base of the shell is moderately convex, with a deep funicular umbilicus.

In the interspaces between the keels on the spire are very minute close spiral striae.

Its termination forms a prominent rounded projection hardly to be called a tooth.

[2] This species occurs in the Atlantic Ocean off Georgia, USA.