Aldisa sanguinea from Carmel, California

April 27, 2006
From: Clinton Bauder

Hi Bill,

Had a good day of branching at Point Lobos recently, as we found 19 different species. This is Aldisa sanguinea which is relatively rare. Interesting that it didn't appear to be on a food sponge or anywhere near one. The picture is by my friend Mark Lloyd.

Locality: Point Lobos State Reserve, 10 meters, CA, USA, Pacific, 15 April 2006, Rocky Reef. Length: 50mm. Photographer: Mark Lloyd.

Clinton

gecko1@apple.com

Bauder, C., 2006 (Apr 27) Aldisa sanguinea from Carmel, California. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16381

Hi Clinton,
Nice find and great photo.  You are correct on the ID.  No other species on this coast has the characteristic conical gill and the two round dorsal spots.  The occurence of the white saddle anterior to the gill is variable among specimens, as is the ground color which varies from deep red to your yellow orange shown here.  Bill's cropped shot (right) clearly shows the shape of the dorsal tubercles in this species.
Thanks,
Dave Behrens

Behrens, D.W., 2006 (Apr 27). Comment on Aldisa sanguinea from Carmel, California by Clinton Bauder. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16381

Factsheet

Aldisa sanguinea

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