Berghia japonica? from Kerama Is

December 23, 1999
From: Atsushi Ono


Dear Bill,

The other day I found another specimen of the species you are calling "Eubranchus sp. 1".

This is maybe adult individual. 7m depth, 15mm long. at Kerama Is. Is this Limenandra sp. 1?

Sincerely,
Atsushi Ono

ononini@cosmos.ne.jp

Ono, A., 1999 (Dec 23) Berghia japonica? from Kerama Is. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1697

Dear Atsushi,

These photos make it pretty clear that it is not a species of Eubranchus. The cerata are a lot more flattened than it appeared in the earlier photos. I think it belongs in the Family Aeolidiidae but I don't think it is Limenandra sp. 1.

One strong possibility would be Baeolidia japonica Baba 1933 [Berghia japonica].

It is described as being relatively small (18mm long maximum), brown with white spots, papillate rhinophores and somewhat flattened cerata. There is no mention in the descriptions of the blue band on the inside of the cerata.

I can find few references to this species other than the original description from Tomioka Bay (Baba, 1933), Sagami Bay (Baba, 1949) and Toyama Bay (1964).

Any comments on this suggested identifcation are welcome.

Best wishes,
Bill Rudman.

Rudman, W.B., 1999 (Dec 23). Comment on Berghia japonica? from Kerama Is by Atsushi Ono. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1697

Factsheet

Baeolidia japonica

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