Food of Jorunna funebris

February 22, 1999
From: Lindsay Warren

Dear Bill

Several weeks ago you posted a note about Jorunna funebris and what it feeds on.  In the Tukang Besi Islands of SE
Sulawesi we have frequently found it on what appears to be the same sponge as shown in your photo on the Forum which we believe to be a species in the Order Haplosclerida.).  We have also found it laying its eggs on the same sponge.  On one occasion I found J. funebris on a large ascidian, Polycarpa aurata, but was unable to check if it was feeding or not as we were in the middle of hunting for a 'smoking' barrel sponge as well as checking the abundance of another sponge surveyed earlier in the day - very frustrating!  Do you know if J. funebris feeds on large tunicates or is it exclusively a sponge feeder?

Many thanks for your help and look forward to hearing your comments on the above.

With best wishes
Lindsay Warren

100014.2112@compuserve.com

Warren, L., 1999 (Feb 22) Food of Jorunna funebris. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/602

Dear lindsay,
I have broken your message into sections so I can deal with the bits individually. Thanks for the observations on Jorunna funebris. It's unlikely that it eats ascidians as well as sponges. The morphology of its radular ribbon is typical of other sponge-feeding dorids.

Bill Rudman.

Rudman, W.B., 1999 (Feb 22). Comment on Food of Jorunna funebris by Lindsay Warren. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/602

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