A rose of a different color

June 6, 2000
From: Mary Jane Adams

Dear Bill,

Here is different color of Hydatina physis for your files. I found it on a dusk dive near Esa'ala wharf at the northern end of Normanby Island, Papua New Guinea. The blue border on the mantle appeared almost flourescent.
Length of shell = 15mm, total length of the animal was 30 mm. Depth 5 mm. May 23, 2000

Best Regards,
Mary Jane

mjadams@earthlink.net

Adams, M.J., 2000 (Jun 6) A rose of a different color. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2510

Dear Mary Jane,
The common name, at least in Australia, of Hydatina physis - The Rose-petal Bubble Shell - is one of the few common names for opisthobranchs which does justice to the animal. It has an amazing variability in colour from almost translucent white to this deeper reddish ink. Both it and
Bullina lineata can have the brilliant flourescent blue border which is so difficult to capture on film.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Jun 6). Comment on A rose of a different color by Mary Jane Adams. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2510

Factsheet

Hydatina physis

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