Re: Polycera aurantiomarginata from Turkey (2)

June 18, 2002
From: Lucas Cervera

Dear Bill,
In Ocaña Martin et al, 2000 there is a juvenile of Polycera aurantiomarginata [p. 242] and photos of two different color patterns of Polycera quadrilineata [p. 240-241]. That on the page 241 resembles very much Baki's animal.

P. aurantiomarginata can show variability in its coloration, but always has an orange band, that can be interrupted or not, all along the edge of the foot (the etymology of the specific name refers to this), the laminate part of the rhinophores or at least the apical part (except the tip that can be translucid) is black without other color; the apical part of the gills are black, at least the tips of the cephalic and extrabranchial process are orange. Concerning the number of the cephalic processes - in P. aurantiomarginata there are (6-7) and in P. quadrilineata (4).

I hope this can be help you. I'm consider that the Baki's animal is more a P. quadrilineata than P. aurantiomarginata, but I cannot be sure beacuse I cannot see the edge of the foot clearly.
Regards.
Lucas.

lucas.cervera@uca.es

Cervera, L., 2002 (Jun 18) Re: Polycera aurantiomarginata from Turkey (2). [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7292

Dear Lucas,
Thanks for your rapid response. I'm afraid I haven't a copy of the original description of P. aurantiomarginata easily available. On looking through the photos you mention and Jean-Pierre's showing white and blue colour forms of P. quadrilineata, I was wondering whether the rhinophore and gill colours and the number of cephalic processes were useful. Unfortunately, in most photos, the edge of the foot is hidden. I'm sure you are correct in identifying Baki's animal as Polycera quadrilineata.
best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jun 18). Comment on Re: Polycera aurantiomarginata from Turkey (2) by Lucas Cervera . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7292

Factsheet

Polycera quadrilineata

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