Runcina adriatica from the Azores

December 16, 2008
From: Terry Gosliner

Hi Bill,
Here is the photo of Runcina adriatica Thompson, 1980 I reported earlier from the Azores in July 1988

The living animals were 2-4 mm in length. The general body colour is a charcoal grey and the dorsum is covered with large black spots and minute opaque white spots. The white spots form a broken transverse band near the anterior and posterior borders. The foot is translucent brown. Posteriorly, it is covered by dense black pigment. The animals are elongate, truncate anteriorly and simply rounded posteriorly. There are two or three distinct gills, which comprise the ctenidium. Each gill consists of 3-4 simple plicae.

  • Gosliner, T.M. (1990). Opisthobranch Mollusks from the Azores Islands. 1. Runcinidae and Chromodorididae. Açoreana, supplement: 135-166
  • Thompson, T. (1980). New species of the bullomorph genus Runcina from the northern Adriatic. J. Moll. Studies, 46: 154-157

Best wishes,
Terry Gosliner

Gosliner, T., 2008 (Dec 16) Runcina adriatica from the Azores. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Terry,
While preparing Gary Cobb's message [#22079] I found this old message of yours which has been languishing unpublished for some years, I think it dates from the time I was forced to close the Forum for some months. All I can say is better late than never.

Bill Rudman

Rudman, W.B., 2008 (Dec 16). Comment on Runcina adriatica from the Azores by Terry Gosliner. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Runcina adriatica

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