Caloria elegans

Caloria elegans is a species of colorful sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.

Taxonomy
Facelina quatrefagesi was considered as a synonym of Caloria elegans, but it is morphologically very similar and different valid species.

Description
The size of the body varies between 20 mm and 35 mm.

Distribution
This marine species occurs in European waters from the British Isles to the Mediterranean Sea; also off the Canary Islands, the Azores and Madeira.