Re: Facelina auriculata? from Mediterranean

May 25, 2009
From: Greg Brown


Concerning message #22462:

Hi Bill,
Very glad to see the Forum back providing interesting sightings.
I'd just like to support Dominique's earlier suggestion of Facelina bostoniensis as the identification for his animal. Tom Thompson and I always reckoned the broader foot and general body outline, relatively longer cerata and scattered white pigment between the rhinophores was indicative of F. bostoniensis in European waters. All the other messages on the Forum giving Facelina auriculata as the identification would agree with our idea of this close species but not Dominique's. I attach compiled photos of examples of the two species from British waters which hopefully illustrate the subtle differences.

Locality: British west coast sites, 20 m, U.K., Atlantic

Best regards,
Greg Brown

sally.andgreg7@ntlworld.com

Brown, G.H., 2009 (May 25) Re: Facelina auriculata? from Mediterranean. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22494

Dear Greg,

Thanks for this valuable set of photos which certainly clarify the differences between these two species. I'm not quite sure why I identified Dominique's animal as F. auriculata - it is clearly F. bostoniensis.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (May 25). Comment on Re: Facelina auriculata? from Mediterranean by Greg Brown. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22494

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