Unknown dorid from Sth Korea

August 11, 2005
From: Dong Bum Koh

Dear Bill,

This is a photo of what I think is Tochuina tetraquetra (Pallas,1788) from South Korea.

But I'm not surel. Could you please identify this animal for me.

Locality: Go Sung, Kang Won Province, South Korea, East Sea. Depth: 20 m. Length: approx. 250 mm. Photo from: Pung Deung Publishing Co.

Best regards,
Dong Bum Koh

drkoh@seasee.co.kr

D. B. Koh, 2005 (Aug 11) Unknown dorid from Sth Korea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14529

Dear Koh,
It ceratinly looks like Tochuina, but the circlet of gills in the midline, and absence of gills around the mantle edge show that it is a dorid rather than a tritoniid.

I have added a couple of close-ups to show lower left: the row of small mantle glands around the mantle edge, and the orange faecal pellets, and lower right: the 5 gills.

It is obviously feeding on the orange sponge I can see in the photo alongside. Unfortunately I can't give you a name. It looks like an Archidoris to me but I could be wrong. It is neither A. tricolor nor A. sugishimae, the two Japanese species. If anyone recognises it I would appreciate some feedback.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Aug 11). Comment on Unknown dorid from Sth Korea by Dong Bum Koh. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14529

Factsheet

Unidentified - North West Pacific (Japan, China)

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