Glossodoris atromarginata? from Brisbane

August 4, 2000
From: Rachel Murphy

Hi Bill

I've been a keen amateur nudibranch student since I took up scuba diving 13 months ago. I like to look for nudibranchs on most dives so I have found your site useful to find information on what I have seen. While I don't have pictures I thought I might contribute my recent findings for general information.

Yesterday (30 July) I was diving at Flinders Reef, Moreton Bay, Brisbane in about 10 m. I found what appears to be Glossodoris atromarginata. Ive found specimens that are more typical in the past. However the one that I found had a marginal colour of yellow-brown on a white/translucent body (similar to a brown variant photographed by Steve Grail - Mooloolaba). The gills and rhinophores were a taupe color with white midline. There was also a fine yellow-brown speckled pattern down the midline of the body and the mantle. Is this just another colour variation of G. atromarginata or do you think it may be another species.

Thanks for the information I've learnt - it certainly makes my diving interesting for days afterwards.

Rachel Murphy.

rachelmurphy_72@hotmail.com

Murphy, R., 2000 (Aug 4) Glossodoris atromarginata? from Brisbane. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2802

Dear Rachel,
I am afraid that while I may have recently been able to identify species from Florida and Hawaii on brief descriptions, that is only because the species have very distinctive features. I am afraid there are a number of species of Glossodoris which look very similar externally and I would need a photograph for a good guess, and a specimen to confirm it.

Steve Grail's photo is interesting as the animal's shape is like G. atromarginata but the relatively broad colour band at the mantle edge is similar to species such as Glossoris averni.

I have added your details to the Participants List.

Sorry I can't be of more help,
Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Aug 4). Comment on Glossodoris atromarginata? from Brisbane by Rachel Murphy. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2802

Factsheet

Glossodoris atromarginata

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