Glossodoris sp. 13

Suborder: DORIDINA
Family: Chromodorididae


Izu Oshima, Japan. Divesite: Akinohama, Depth: 15m, Length: 30~40mm. October 20, 2002. Photo: Kyoko Takahashi.

Has similarities to Ardeadoris egretta but differs in the transparent yellowish body colour and yellowish gills and rhinophores. Known only from this photo.

Authorship details
Rudman, W.B., 2002 (October 28) Glossodoris sp. 13 [In] Sea Slug Forum. Australian Museum, Sydney. Available from

Related messages

Ardeadoris egretta? from Japan

October 30, 2002
From: Kyoko Takahashi

Dear Bill,
I took this photograph on Izu Oshima in Japan. I think this is similar to Ardeacoris egretta. But this nudibranch differs as it has yellow body which is
transparent., The gills also differ in being yellow. I have seen the same nudibranch 4 years before, at a different divesite.

Divesite: Akinohama
Depth: 15m
Length: 30~40mm
Date: October 20, 2002

Thank you,
Kyoko Takahashi.

Takahashi, K., 2002 (Oct 30) Ardeadoris egretta? from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Kyoko,
Thanks for this interesting photo. As you say, it looks quite like Ardeadoris egretta, but has some differences. I suyspect it is eating the yellow sponge in the background of your photo. It is certainly not a species known to me. I am pretty sure it is a chromodorid, but many chromodorids are difficult to put in a genus unless we know their anatomy. The general shape, and long thin gills are similar to Ardeadoris egretta, but there are species of Glossodoris which look like this as well. I will take a guess and call it Glossodoris sp. 13 until we know more about it.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Oct 30). Comment on Ardeadoris egretta? from Japan by Kyoko Takahashi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from