Flabellina pedata? from UK

August 12, 2005
From: Judith Oakley

Dear Bill,
On another marina safari today, I found this very attractive sea slug. I was predominantly pink/purple colour. It was on Ulva lactuca with bryozoans and hydroids. Also this spawn was nearby. Can you help with ID of the sea slug and the eggs (I wonder if the eggs are those of Janolus cristatus?).

Locality:  Queen Anne's Battery marina, Plymouth, Devon, UK. Length: 16 mm. 10 August 2005. marina pontoon on Ulva lactuca. Photographer: Judith Oakley

Thank you
Judith Oakley


Oakley, J.A., 2005 (Aug 12) Flabellina pedata? from UK. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14537

Note added 13 July 2007: These are not the eggs of J. cristatus but see message #20089 showing apparent eggs in Janolus cristatus are in fact capsules containing many eggs.

Dear Judith,
I am pretty sure this is  Facelina auriculata. The red ceratal digestive gland, the red oesophagus which can be seen between the rhinophores, the lamellate rhinophore clubs with a white streak up the front of the club, are all characteristics of this species.

Concerning the egg ribbon. It is possible it belongs to your Facelina, but I don't know what shape egg ribbon it has. It is definitely not that of Janolus cristatus. If you have a look at an earlier message [#1285], there is a photo of its egg ribbon, and although it has the same general shape, the individual eggs are relatively large and form a single row in the ribbon. In your egg ribbon the eggs are small and are in a multiple arrangement.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Aug 12). Comment on Flabellina pedata? from UK by Judith Oakley. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14537

Related messages

  1. Re: Facelina auriculata from the French Mediterranean
    From: Jean Michel Crouzet , May 6, 2010
  2. Facelina auriculata from the French Mediterranean
    From: Dominique Horst, April 14, 2010
  3. Re:F. coronata or F. auriculata? from Spain
    From: Miquel Pontes, April 14, 2010
  4. Facelina ? from French Mediterranean coast
    From: Sylvain Le Bris, August 21, 2008
  5. Facelina auriculata from Plymouth, UK
    From: Judith Oakley, August 14, 2006
  6. Facelina auriculata from Cork, Ireland
    From: Jamie Malone , June 15, 2006
  7. Facelina auriculata, in Brittany
    From: Stephane Ores, June 13, 2006
  8. Facelina auriculata from Ireland
    From: Jamie Malone ., May 2, 2006
  9. Re: Flabellina pedata? from UK
    From: Bernard Picton, September 30, 2005
  10. Facelina auriculata from sthn England
    From: Jack Sewell, May 7, 2005
  11. Facelina auriculata from Brittany
    From: Marina Poddubetskaia, September 7, 2002
  12. Facelina auriculata from Scotland
    From: Jim Anderson, August 31, 2001
  13. Re: Facelina auriculata in Scotland
    From: Bernard Picton , August 31, 2001
  14. Aeolid from Scotland
    From: Erwin Koehler, August 30, 2001
  15. Facelina coronata or F. auriculata?
    From: Bernard Picton , July 22, 2001
  16. Facelina coronata from the Netherlands
    From: Peter H. van Bragt, August 13, 1999
  17. Re: Mystery from Holland
    From: Peter H. van Bragt, June 10, 1999
  18. Facelina coronata f rom Mediterranean France
    From: Daniel L. Geiger, June 5, 1999

Show factsheet and all related messages