Aphelodoris gigas? from Western Australia

April 19, 2007
From: Bruce Potter

Dear Bill,

I recently did a dive on a small jetty in Rockingham, just south of Perth WA. I found quite a variety of Nudibranchs there, and will send you a few of them.
I have not been able to identify this one. It appears to be an Aphelodoris, but I cannot find one with this orange boarder around it. There were several of them around, and all like this. It was about 35mm long. The site is under a small jetty and quite mucky at about 6 metres.

Locality: Rockingham, 6 metres, Western Australia, Indian Ocean, 24 February 2007, Mucky under Jetty. Length: 35 mm. Photographer: Bruce Potter.

Regards
Bruce Potter.

bandppotter@bigpond.com

Potter, B., 2007 (Apr 19) Aphelodoris gigas? from Western Australia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19599

Dear Bruce,
It ceratinly looks like an Aphelodoris and one possibility is that it is a juvenile of a recently described species from Western Australia, Aphelodoris gigas. I have include close-ups of the head and gill region to show the orange border to the foot, mantle and rhinophore pockets so it can be compared with more typical A. gigas. My understanding is that in A. gigas, the orange mantle border, if present is submarginal

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Apr 19). Comment on Aphelodoris gigas? from Western Australia by Bruce Potter. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19599

Factsheet

Aphelodoris gigas

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