A diaphanid from Kerama Island?

October 9, 2000
From: Atsushi Ono


Dear Bill,
Thank you for your comment on Ceratosoma gracillimum.

Now, I attached two images of an animal that I don't know what it is. Maybe I think that is an opisthobranch....

I found it near the base of a colony of the coral Porites sp at 10m depth in a bay at Kerama Is. near Okinawa in Japan.

Shell-length is 3mm long.
Could you help me to identify this for me?

Sincerely,
Atsushi Ono

ononini@cosmos.ne.jp

Ono, A. , 2000 (Oct 9) A diaphanid from Kerama Island?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3143

Dear Atsushi,
I don't recognise this tiny animal but it is an opisthobranch. From the the shape of the shell it is possibly a species of Diaphana, but the only species of that genus we have any information on have a rather differently shaped animal, with a longer foot which splits posteriorly into two pointed 'tails' and it does not have parapodial flaps as in your photos.

So all I can say is that it is an opisthobranch. Hopefully someone will recognise it.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Oct 9). Comment on A diaphanid from Kerama Island? by Atsushi Ono . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3143

Factsheet

haminoeid - genus unknown 1.

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