Couthouyia plicifera A. Adams, 1863 Zeradina plicifera is a species of sea snail, a marine gastropod mollusk in the family Vanikoridae.

[1] (Original description) This is a small species with 4½ plicate and convex whorls and a canaliculated suture.

It is finely striated transversely and is very thin.

The outer lip is arcuate.

This marine species occurs off the Philippines and Japan.