Janolus fuscus from Puget Sound

June 28, 2004
From: Fraser Stanton

I searched around the SeaSlugForum, but could not find anything that matched this nudibranch. I searched for yellow tip and Pacific northwest [of Nth America] but nothing looked the same. Can you please have a look at this photo and id the nudibranch in it for me? I thought it was an opalescent at first, but after seeing other photos, I changed my mind.

I found it on some kelp near a dock on Whitby Island in 29 feet of water in Puget Sound (Pacific Northwest). At a guess it was about an inch and a quarter long.

I know you must get a million requests like this, but I thank you for
looking anyway.

Thanks,
Fraser

fraserstanton@yahoo.co.nz

Stanton, F., 2004 (Jun 28) Janolus fuscus from Puget Sound. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12676

Dear Fraser,
This is a form of Janolus fuscus which is found from Alaska to California. All the photos we have on the Forum are of specimens in which the median line that runs from between the rhinophores back down the boody is dark brown. In your animal the line is bright orange. Dave Behrens has a photo of a similar coloured animal in his Pacific Coast Nudibranchs.
Best wishes
Bill Rudman

Rudman, W.B., 2004 (Jun 28). Comment on Janolus fuscus from Puget Sound by Fraser Stanton. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12676

Factsheet

Janolus fuscus

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