Eubranchus farrani from the Baltic Sea

January 12, 2010
From: Thorsten Walter


Dear Bill,
I am the owner of a small local aquarium/museum located at the Baltic Sea in Lübeck-Travemünde, northern Germany. During our field trips with school clases we sometimes found small nudibranchs, inside the harbour in front of our station. The salinity of the water is normally 1.0-1.5 psu.
I tentatively identified one species as Eubranchus exiguus,the second as Tenellia adspersa. For the others I have no idea. In this message I have included pictures of E. cf. exiguus. Images of the other species will follow with the next email.

Locality: Harbour, less than 1 metre, Germany, Schleswig-Holstein, Baltic Sea, Luebeck Bight, Passathafen, 14 December 2008, On Mytilus edulis covered mainly with Laomedea flexuosa and Aurelia aurita polyps. Length: 5 mm. Photographer: T. Walter.

It would be great if you or somebody else can help me with the species identification.

Best regards
Thorsten Walter

info@ostseestation.de

Walter, T., 2010 (Jan 12) Eubranchus farrani from the Baltic Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23077

Dear Thorsten,

This is indeed a species of Eubranchus, but it is Eubranchus farrani rather than E. exiguus. E. farrani has a number of colour variations, but it is the only European species with the this colour pattern - orange tipped cerata and orange patches covering the dorsal part of the body.

Best wishes,
Bill Rudman

Rudman, W.B., 2010 (Jan 12). Comment on Eubranchus farrani from the Baltic Sea by Thorsten Walter. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23077

Factsheet

Eubranchus farrani

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