Antiplanes catalinae is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.

(Original description) The sinistral shell is thin, elongated and slender.

The shell is sculptured by fine incremental lines and on the last whorls a few obscure, spiral striations, mostly below the periphery.

The anal fascicle is traceable on the spire as a flattened or obscurely grooved band.

The outer lip is produced and deeply emarginate near the sutural margin of the whorl.