Eubranchus pallidus
(Alder & Hancock, 1842)

Family: Eubranchidae


European coast from the Barents Sea to the western Mediterranean. Also reported from New England, USA.


UPPER: 'Pallid' colour form. Burghsluis, de Oosterschelde, the Netherlands. Photo: Peter van Bragt.
LOWER: On rocks at Craig'n Gelt, Dunbar, east coast of Scotland. 6 - 11 metres, crawling over and among the weedy rock surfaces, 15 mm long alive. 27 May, 2001. Photo: Jim Anderson.

May reach about 25mm in length. Despite their name, they are usually not pale, and can often have a microscopic colour pattern of reds, oranges, gold and white. Feeds on a wide variety of hydroids.

• Thompson, T.E. & Brown, G.H. (1984) Biology of Opisthobranch Molluscs, Vol 2. Ray Society: London.

Authorship details
Rudman, W.B., 1999 (August 29) Eubranchus pallidus (Alder & Hancock, 1842). [In] Sea Slug Forum. Australian Museum, Sydney. Available from

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