July 8, 2003
From: John Chuk
Here are two images of a specimen that appears somewhat similar to Aphelodoris sp.2 on the Forum. The specimen was found at a depth of 4m at Portsea Pier, Victoria, Australia on May 1st, 2003. It measured 53mm in length.
This specimen was found under a rock snuggled up to a large specimen of A. berghi (see separate message). I observed the two for some time and they were seen to take a close interest in each other, repeatedly crawling around each other. Twice they lined up right side to right side but did not actually mate.
firstname.lastname@example.orgChuk, J., 2003 (Jul 8) Aphelodoris sp. 2? from S.E. Australia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10182
I think we still have a bit to learn about Aphelodoris, and just how many species there are. Your animal looks very like Nerida Wilson's photo which I tentatively identified as Aphelodoris greeni, but as you suggest it also looks like Aphelodoris sp. 2. I suspect anatomical differences, if present, will be too difficult to quantify, and we will need to wait until local resarchers can study large populations of these 'species' comparing egg masses, food choice and other aspecus of their natural history and ecology