Dirona from British Columbia

May 20, 2006
From: Avery Bartels

Hi,
This picture was taken at Bamfield Marine research Centre on the west coast of Vancouver Island in British Columbia, Canada. I am an amateur at best when it comes to nudibranchs and I cannot identify this individual. It looks very much like a White-lined Dirona [Dirona albolineata], but it is so orange that it has me torn between that and Gold Dirona [Dirona aurantia ]. Any ideas?

Locality: Bamfield, intertidal, B.C., Canada, Pacific Ocean, 30 April 2006, intertidal. Length: 2 inches. Photographer: Avery Bartels.

Avery Bartels

power2thepeaceful17@hotmail.com

Bartels, A., 2006 (May 20) Dirona from British Columbia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16527

Hi Avery,
You have called it right - the white-lined Dirona.  As indicated in a couple of previous messages  Dirona albolineata varies in color from pure white to almost purple.  Your brownish (gold) specimen is one of the common colours.

Your critter looks like it is taking protection during the low tide.  When the water is in it was likely feeding on the branching bryozoan in the upper left portion of your photo.  Good show.

Thanks
Dave Behrens

Behrens, D.W., 2006 (May 20). Comment on Dirona from British Columbia by Avery Bartels. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16527

Factsheet

Dirona albolineata

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