Paracomitas augusta is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Sculpture : The whorls are strongly keeled at the periphery and with a row of gemmules set slightly oblique thereon.

The shell contains 7 whorls, regularly and rather slowly increasing, the last biangulate, concave below the keels and produced into a rather long narrow and truncated beak.

The aperture is angularly ovate, broadly angled above, contracted below and terminating in a rather long open siphonal canal, which is somewhat turned to the left.

The inner lip spreads as a very thin narrow callus over the concave body and the columella, which is nearly straight and slightly twisted, ending in a fine point on the left margin of the siphonal canal.