Confirmation of Jorunna funebris

January 29, 2000
From: David Freemantle


Dear Bill

I collected a what appears to be a Jorunna funebris the other day (a common species I know), and I just want to clarify the disimilarities between my animal and those illustrated in photo's I've seen of J. funebris. I can't distinguish the mantle and foot in all the photo's I've seen, and the animal I have is shaped very much like a Chromodoris, with pronounced foot and distinct mantle (see attached diagram), so without past experience with this animal I don't know if this is normal, so I thought it would pay to check.

By the way, the animal was found in 5 metres of water on a rock, 15 km south of Mandurah, Perth, Western Australia (exposed coastline).

Regards,
David Freemantle

scubadav@rock.upnaway.com

Freemantle, D., 2000 (Jan 29) Confirmation of Jorunna funebris. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1801

Dear Dave,
Your sketches certainly look like Jorunna funebris. It's a bit hard to photograph many of the 'flat dorids' in a way that you can see them in profile. Have a look at the page on the dorid head. It has some pictures which give you a basic idea of the external shape of most of the Eudoridoidea (which I tend to think of as the 'Flat Dorids').

One point though is your mention in the top drawing of the mantle being 'smooth'. If it is Jorunna funebris the mantle should be covered in microscopic bristles as I've illustrated at the top of this page. Have a look below your message for further photos and discussion on this species. Have you seen your animals associated with any sponge?

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Jan 29). Comment on Confirmation of Jorunna funebris by David Freemantle. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1801

Factsheet

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