Okenia japonica

Okenia japonica is a species of sea slug, specifically a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.

Distribution
The species was described from Sagami Bay, Japan. It has also been found in Hong Kong.

Description
This Okenia has a flattened body and short lateral papillae on each side of the mantle. It is predominantly opaque white in colour.

Ecology
The species feeds on bryozoans.