Re: Limenandra nodosa from Heron Island

December 2, 2009
From: Hans Bertsch

Concerning message #13532:

Dear Bill and Julie,
I do not know how widely the "cerata pumping" is in Limenandra nodosa, but I described it in some detail when I published the first record of this species from the east Pacific, at Las Cruces, Baja California Sur (24º 13'N; 110º 05' W).

  • Bertsch, Hans. 1972. Two additions to the opisthobranch fauna of the southern Gulf of California. The Veliger 15 (2): 103-106.


Dear Hans,

Thanks for the reference. It's one of yours that I had overlooked. I first saw this species doing its 'ceratal dance' in Tanzania in the 1970s so I guess we can say it does it from east Africa to the east Pacific. Looking back on earlier messages on the Forum, I seem to have mentioned the 'jerking' [= pumping] in almost every reply. It is so unusual I was surprised others hadn't mentioned it - obviously apart from you.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Dec 2). Comment on Re: Limenandra nodosa from Heron Island by Hans Bertsch. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Limenandra nodosa

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