Re: Ancula gibbosa from Scotland

June 14, 2006
From: Marina P. Ossokine

Concerning message #16821:

Dear Bill and Jim,
This animal is Polycera, not Ancula because it has only one pair of branchial processes. It could be either Polycera quadrilineata or Polycera faeroensis, but to be sure we'd need to know how many head processes it has.
Best regards,
Marina.

nembro@nembro.info

Poddubetskaia Ossokine, M., 2006 (Jun 14) Re: Ancula gibbosa from Scotland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16863

Dear Marina,
I am very glad you were paying attention! You are of course quite right, this is not an Ancula but a species of Polycera. I must have been on autopilot when I prepared this message. Jim Anderson has got photos of Ancula gibbosa, Polycera quadrilineata and Polycera faeroensis, all with an extremely similar colour pattern on his excellent website at:
http://www.scottishnudibranchs.co.uk/

I have emailed Jim who has sent his only other photo of this animal [see message #16871] which shows it is Polycera quadrilineata.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Jun 14). Comment on Re: Ancula gibbosa from Scotland by Marina P. Ossokine. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16863

Factsheet

Polycera quadrilineata

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