Plocamopherus ceylonicus is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusk in the family Polyceridae.

This species was originally described from Sri Lanka.

Description of a new Ceylonese nudibranch.

Annals and Magazine of Natural History, series 3, 1(4): 257-258.

This Polyceridae-related article is a stub.