Dondice banyulensis from Portugal

March 28, 2008
From: Joao Pedro Silva

Dear Bill,

As I was reading the available info on Dondice banyulensis I got the feeling it's not a common find outside the Mediterranean.
Well, during 2 weeks last October I found several individuals (quite large, aprox. 8 cm long) in Sesimbra, Portugal. And I've also seen them before several times further north in Peniche and Baleal (aprox. 120 km north of Sesimbra). Far less common than other species, like Flabellina babai or Hypselodoris villafranca (and other "blue cousins"), but still a species one can find every now and then.

Locality: Sesimbra, Baleeira spot, 18, Portugal, North Atlantic, 14 October 2007, mostly sandy bottom with occasional rocks. Length: ~8cm. Photographer: Joao Pedro Silva.

I'm yet to find them mating, spawning and feeding.

Joao Pedro

Silva, J. P., 2008 (Mar 28) Dondice banyulensis from Portugal. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Joao Pedro,
I think Dondice banyulensis is quite well known on the Atlantic coast of the Iberian Peninsula [see message #9028] but as with many species, we have to be careful to work out whether lack of records of an animal from a particular place is because the animal is actually absent or rare there, or because there are not many observers looking for them. Thanks for the nice photos.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Mar 28). Comment on Dondice banyulensis from Portugal by Joao Pedro Silva. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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