Pleurobranchus membranaceus from Little Loch Broom, Scotland

February 7, 2007
From: Karen Williams

Dear Bill
I have recently discovered the Sea slug Forum and am impressed with the amount of information it provides.

Could anyone help me indentify this nudibranch from Scotland. I orginally thought it was Archidoris pseudoargus, but because of the red brown blotches now think it might be Discodoris plana.

Locality: Conger Stack, Little Loch Broom, Camusnagaul, Dundonnell, 30 metres, Wester Ross, Scotland, UK, North Atlantic Ocean, 09 August 2005, Rocky pinnacle in sea loch. Length: 70 mm. Photographer: Karen Williams.

Thanks.
Karen Williams

karenalwilliams@btinternet.com

Williams, K.A.L., 2007 (Feb 7) Pleurobranchus membranaceus from Little Loch Broom, Scotland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19294

Dear Karen,

In the close-up alongside yopu will see that this animal has a pair of tube-like rolled tentacles quite unlike the rhinophores of dorid nudibranchs like Archidoris and Discodoris. Your animal is the 'side-gilled slug'  Pleurobranchus membranaceus. As you will see from the attached messages, this species can sometimes be found in large numbers in Scottish waters.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Feb 7). Comment on Pleurobranchus membranaceus from Little Loch Broom, Scotland by Karen Williams. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19294

Factsheet

Pleurobranchus membranaceus

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