Chelidonura hirundinina from the Bahamas

April 9, 2003
From: Anne DuPont

To accompany my message about the Philinopsis, here is a photo of the Chelidonura hirundinina. A few were turquoise instead of the bright blue. I found them in sizes from 1/2 inch to a few large ones that were 1 and 1/2 inches long. They were all out in the day crawling on the sand, and I always found them with the Philinopsis sp.

Data: I found them over a range of 100 miles in the Southern Bahamas (The Exumas chain of islands) in depths from 2 feet to 10 feet. Jan - March 2003


DuPont, A., 2003 (Apr 9) Chelidonura hirundinina from the Bahamas. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Anne,
I used to think of this colour form as having an orange background colour, but what seems to have happened is that the orange bands of more 'normally' coloured specimens have expanded to almost completely replace the black background. This would seem to be the common Caribbean colour form.

Redfern. C., 2001 Bahamian Seashells: a Thousand Species from Abaco, Bahamas.
• Thompson, T.E. (1977) Jamaican opisthobranch molluscs I. Journal of Molluscan Studies, 43(2): 93-139, pls.1-3.

Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Apr 9). Comment on Chelidonura hirundinina from the Bahamas by Anne DuPont. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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