April 24, 2008
From: Stefanie Buell
My buddy spotted this fellow; very small (only just managed to get it in focus) with what looked underwater like tiny bright red balloons along it (they look orange in the photos).
Bernard Picton thinks it could be a strange Hermaea bifida, perhaps with the digestive gland full of food. I would be interested to hear what others think.
Locality: Wreckage of MV Mara, Scapa Flow, 14 metres, Orkney, Scotland, UK, North Sea, 14 August 2007, Wreckage of dive boat (!). Length: 5-10 mm. Photographer: Stefanie Buell.
All the best,
email@example.comBuell, S.J., 2008 (Apr 24) Hermaea bifida? from the Scapa Flow. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20767
My first thought must be is it an animal? I can't tell from the two photos if it was actually moving, and if so could it have been something on the back of a crab or a mollusc shell? It looks quite like cephalopod eggs or an algae to me. I can't see any sign of a head or tentacles or anything else which would suggest it is a mollusc, but I could be wrong. Did either you or your buddy see it moving? If not, why do you think its a animal?
Concerning Hermaea bifida, if you look at the photos on the Forum, the digestive gland in that species has a central duct and radiating branches. I can't see how the radial branches would disappear if the central duct became overinflated.
I would be interested in any other comments
Hermaea bifida - Norway
From: Bjørnar Nygård, April 9, 2010
Hermaea bifida from the Scottish west coast.
From: Jim Anderson, May 26, 2005
Hermaea from Mediterranean
From: Jean-Pierre Bielecki , May 26, 2001
Hermaea bifida from France
From: Jean Pierre Bielecki, February 7, 2001
More photos of Hermaea bifida
From: Peter H. van Bragt , September 30, 2000
Re: Hermaea bifida from the Netherlands????
From: Juan Lucas Cervera, August 25, 2000
Re: new species for the Netherlands????
From: Peter H. van Bragt, August 9, 2000
Re: A new species for the Netherlands????
From: Juan Lucas Cervera, August 6, 2000
A new species for the Netherlands????
From: Peter H. van Bragt, August 5, 2000