Acanthodoris spp in Puget Sound

March 6, 2006
From: Jan Kocian


Hi Bill.
More nudibranch from Whidbey Island. Saturday dive at Keystone Jetty provided me with two very similar looking slugs, Acanthodoris hudsoni [lower] and Acanthodoris nanaimoensis [upper]. The two were just about ten feet apart, in the dark and murky water due to overcast weather looking like the same species.

Locality: Jetty, Whidbey Island, Puget Sound, WAshington, USA. Pacific coast. Depth: 25 feet. Length: 35 mm. 08 October 2005. Photographer: Jan Kocian

Jan

honkoc@hotmail.com

Kocian J., 2006 (Mar 6) Acanthodoris spp in Puget Sound. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15010

Dear Jan,
Some photos of A. nanaimoensis seem to indicate its papillae are longer, more flexible and more densely packed than in A. hudsoni, but in these photos the only difference seems to be the paint job.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Mar 6). Comment on Acanthodoris spp in Puget Sound by Jan Kocian. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15010

Factsheet

Acanthodoris nanaimoensis

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