Two colour forms of Dendronotus albus?

October 15, 2005
From: Dr. Steve Lonhart

Dear Bill,
I am sending a shot of two slugs I believe are both Dendronotus albus. They were found next to each other, and look similar to the pair photographed by another contributor from the Channel Islands.

Locality:  Stillwater Cove, Pebble Beach, California, USA. Depth: 45 ft. Length: 20 mm.16 September 2005. Shale reef. Photographer: Steve Lonhart

At first I thought the white individual might be Dendronotus dalli, but that seems unlikely given the lower number of cerata and the known range of D. dalli. Just thought I'd ask, though, in case it was an odd range extension.

Lonhart, S.I., 2005 (Oct 15) Two colour forms of Dendronotus albus?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Steve,
I'm pretty sure you are right but as the photo doesn't show if the white one has the characteristic white line down the 'tail' I can't be 100% sure
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Oct 15). Comment on Two colour forms of Dendronotus albus? by Dr. Steve Lonhart. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Dendronotus albus

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