November 4, 2005
From: Jeff Goddard
Marli's specimen [message #15161] is unquestionably Aldisa sanguinea and represents a significant range extension from the previous northernmost locality in Oregon. The dorsal papillae are broader and more widely spaced than in Rostanga pulchra, and the egg ribbon is characteristic and not at all like the tightly coiled string of Rostanga. Aldisa sanguinea usually has two dark spots on the midline of the dorsum, but one or both may be absent. I have seen a number of specimens in Oregon just like Marli's.
You are also quite correct in your supposition about the sponge prey of Marli's specimen. Although I only have food records for three individuals, they were all on a red, thinly encrusting species of Hymedesmia.
email@example.comGoddard, J.H.R., 2005 (Nov 4) Re: Aldisa sanguinea from British Columbia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15173
Thanks for the quick response. Not trying to be tricky or anything but can you get Aldisa cooperi with no black spots, and if so is there any way to distinguish it from an A. sanguinea like this externally?
Aldisa sanguinea from Monterey, California
From: John Yasaki, March 31, 2009
Aldisa sanguinea from California
From: Clinton Bauder, July 28, 2007
Aldisa sanguinea from Point Lobos, California
From: Clinton Bauder, May 3, 2007
Aldisa sanguinea from Carmel, California
From: Clinton Bauder, April 27, 2006
Re: Aldisa sanguinea from British Columbia
From: Brian K. Penney, November 5, 2005
Aldisa sanguinea from British Columbia
From: Marli Wakeling, November 4, 2005
Aldisa sanguinea, a fairly uncommon nudibranch
From: Bruce Wight , August 8, 2003
Aldisa sanguinea from Carmel, CA
From: Clinton Bauder, February 20, 2002