Duvaucelia plebeia

Duvaucelia plebeia, common name the European nudibranch, is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Tritoniidae.

Description
The color is primarily yellow, with brown mottling. The length of this nudibranch is up to 30 mm.

Distribution
The indigenous distribution of Duvaucelia plebeia is the Northeastern Atlantic Ocean from Norway to Portugal.

The species has been introduced in coastal areas of Maine and Massachusetts, probably in ballast water from ships.

Habitat
This is a marine species.

Feeding habits
Although this species was introduced in the Gulf of Maine only during the mid-1980s, it has had a severe impact on the soft coral, Alcyonium siderium.