Glossodoris symmetricus ? from the Philippines

April 21, 2008
From: Mike Krampf

I was wondering if you could help identify this one for me?

Locality: Puerto Galera, 20 ft, Mindoro Island, Phillipines, Batangas Sea, 3 August 2007, Sand and coral rubble. Length: 15 mm. Photographer: Mike Krampf.


Krampf, Mike, 2008 (Apr 21) Glossodoris symmetricus ? from the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Mike,

One thing I am not sure of is whether the apparent a red border to the mantle is real or an artifact of the scanning or photographic process. Initially I thought it was real when when I was resizing the files I began to have some doubts.

This reminds me of the lower photo in Philibert Bidgrain's message [#12984] of an animal I identified as Glossodoris symmetricus. It has the same white line on the rhinophores. I assume its a juvenile form, but there is always a possibility it is something different, perhaps a species of Noumea. One possibility is Noumea angustolutea, but in this colour group I feel the only way to be sure is to look at the anatomy. 

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Apr 21). Comment on Glossodoris symmetricus ? from the Philippines by Mike Krampf. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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