July 4, 2006
From: Marina Poddubetskaia Ossokine
Here is another record of Eubranchus doriae from the Mediterranean coast of France. This species was found on the same hydroid, at the same site (but not in the same place) as Eubranchus prietoi.
Locality: 'La digue', Port-Leucate , 3m, France, Mediterranean, 24 June 2006. Length: animal : 6mm / eggs : 1+2mm . Photographer: Marina Poddubetskaia Ossokine.
The photos of eggs I have included, confirm the egg-ribbon laid by the animal from Cerbere above the large Doto egg-ribbon (see message #10589 ). All these eggs seem relatively large. Does it mean this species has a direct development ?
Poddubetskaia Ossokine, M., 2006 (Jul 4) Eubranchus doriae and eggs. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17028
Thanks for this find. It certainly confirms your earlier thoughts. Comparing the size of these eggs with those of Doto floridicola in your earlier message, I am pretty sure these are the eggs of a direct developer. If not a direct developer, then perhaps one in which the larvae don't feed in the plankton before settling down and metamorphosing. As a whole, these lecithotrophic non-feeding veligers have intermediate sized eggs. However, as I am sure you have guessed, the only way to be sure is to find some hatching out of the egg ribbon