Hydatina physis from Japan
June 11, 2003
From: Kayoko Eto
Dear Bill,
I found these Hydatina physis copulating at Osezaki beach in Japan. I observed then until they finished.
Could you tell me what the object in the third [lower] photo is please?
Data:
Date: 4 June,2003
Location: Osezaki beach, Suruga Bay, Pacific coast of Japan
Depth: 2m
Length: 10cm×2
W/temp: 20 C degree
Photo by Kayoko Eto
Best Regards,
Kayoko Eto
kame@diving.to
Eto, K., 2003 (Jun 11) Hydatina physis from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10187Dear Kayoko,
I don't think the feathery object is part of the Hydatina. Could it possibly be a fish scale or something similar that has got stuck on the edge of the foot? I have dissected a few of these animals over the years and I can't recall any organ that looks like this, so I can only guess that it's something from the sand that has got stuck on the foot.
Best wishes,
Bill Rudman
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