Phyllidia zebrina is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.

[2] The holotype of this species was collected at Amadaiba, Sagami Bay, Japan.

[3] This nudibranch has a translucent mantle heavily spotted with opaque white or yellow.

There are a series of black (or dark red) lines radiating in from near the mantle edge towards the middle of the body.

[3] This species feeds on a sponge.