Shima Pref. Mie Japan, (Kii Peninsula, east coast). 25mm long, Jan. 2000. Depth: 3m. PHOTO: Yasuhiro Shirai.
I think this is Elysia amakusana Baba, 1955 . [Sagami Bay Supplement], which Baba introduced as a 'new name' for the animal figured on Plate 9, fig 27. in Baba, 1949 [Opisthobranchs of Sagami Bay] as Elysia japonica but which is not Eliot's Elysia japonica.
The painting shows brownish mottling on the parapodia and blue on the upper half of the rhinophores and a dark mark at the posterior tip of the body - very like the photo in 19 Feb 2000 message below. Also in the painting there are whitish papillae over parapodia.
See message below.
NOTE: This species was previously labelled Elysia sp. 6.
• Baba, K. (1955) Opisthobranchia of Sagami Bay, Supplement. Iwanami Shoten, Tokyo. 59pp.
Rudman, W.B., 2000 (February 27) Elysia amakusana Baba, 1955. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/elysamak
December 3, 2002
From: Dong Bum, Koh
Here is an elysiid which I think is Elysia amakusana. It is from Moon Islet, Che Ju Island, South Korea. June 2001, 5m depth. Photo: Dong Bum, Koh.
Dong Bum, Koh
firstname.lastname@example.orgKoh, D.B., 2002 (Dec 3) Elysia amakusana from South Korea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8250
Dear Dong Bum,
I would agree with your identification.
February 29, 2000
From: Bill Rudman
February 19, 2000
From: Yasuhiro Shirai
Thank you for your reply about my messages.
I have attached another photo of Elysia sp. 6.. I think this is a color variation.
These data (water temp. ,place,depth,length, etc) are similar to previous.
email@example.comYasuhiro Shirai, 2000 (Feb 19) Re: Elysia sp. 6.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1930
It certainly looks like a colour variation to me. The bright blue patch on the rhinophores are very distinctive.
January 30, 2000
From: Yasuhiro Shirai
I think this one is an Elysia.
Could you please identify this animal for me?
Location: Shima Pref. Mie Japan (Kii Peninsula, east coast)
Water temperature: 13C
Date Jan. 2000
moved on seaweed
firstname.lastname@example.orgShirai, Y., 2000 (Jan 30) Elysia from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1788
I have had a look through the papers I have on Japanese elysiids and can't find anything that seems to fit. The bright blue patches on the rhinophores would seem to be a very good character.
Perhaps this is another one that the sacoglossan experts can help us with.
Sorry I can't provide a name,