Phyllodesmium opalescens

Phyllodesmium opalescens is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.

Distribution
The type locality of Phyllodesmium opalescens is Mirs Bay, Hong Kong. It has been reported from Korea and the Philippines.

Description
This species grows to 20 mm in length. It does not sequester zooxanthellae.

Ecology
The food of Phyllodesmium opalescens is unknown.