Adalaria? Akiodoris? from Denmark

June 20, 2007
From: Sven Gust


Hi,

I am not sure about the species:

It was observed in the Baltic at a site with heavy current in winter.

Locality: Lille Belt, 2-10 metres, Denmark, Baltic Sea, Jan./Feb. 2007, On Kelp/Bryozoa. Length: ca. 15-20 mm. Photographer: Sven Gust.

Sven Gust

sven@tauchprojekt.de

Gust, S., 2007 (Jun 20) Adalaria? Akiodoris? from Denmark. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19430

Note added 21 June 2007: See message #20054 suggesting this is Acanthodoris pilosa.

Dear Sven,
This animal is almost certainly a member of the Onchidorididae but they are difficult to distinguish from one another - especially for someone with little personla experience of these northern species. It looks like Adalaria sp A in Just & Edmunds book on Lemche's illustrations. It also reminds me of Akiodoris lutescens which Millen & Martynov (2005) have placed in a new Family Akiodorididae.

Hopefully one of our colleagues from northern waters will be able to help with an identification.

  • Just, H. & Edmunds, M. (1985) North Atlantic Nudibranchs (Mollusca) seen by Henning Lemche. With additional species from the Mediterranean and north east Pacific. Ophelia, Supplement 2: 1-149.
  • Millen, S. V. and Martynov, A. V. Redescriptions of the nudibranch genera Akiodoris Bergh, 1879 and Armodoris Minichev, 1972 (Suborder Doridacea), with a new species of Akiodoris and a new family Akiodorididae. Proceedings of the California Academy of Sciences 56[1], 1-22. 2005.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Jun 20). Comment on Adalaria? Akiodoris? from Denmark by Sven Gust. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19430

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