Bornella from Sarawak
October 2, 2002
From: Michael Aw
Hello Bill,
I have been a follower of your forum; great stuff. Perhaps u be keen to do us slug feature;
Meanwhile I found this slug in Sarawak at 30m; about 10cm
Any clues?
Much appreciated
Michael Aw
Publisher
www.AsianGeographic.org
michael@asiangeographic.org
Aw, M., 2002 (Oct 2) Bornella from Sarawak. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8054Dear Michael,
Your animal is a species of Bornella, and I suspect it is Bornella stellifer, which was first described from the South China Sea. Some years ago (Rudman, 1984) I came to the conclusion that this animal was found throughout the Indo-West Pacific, but I am beginning to wonder if this is so. Although you give no indication of size, the animals I have seen from the South China Sea seem to grow to a much larger size and to have an opaque white background colour. Of course the colour could be a size effect but it certainly is something worth looking into. As you illustrate so well in your photos, Bornella feeds on hydroids.
Reference:
• Rudman, W.B. (1984) The date and authorship of Bornella and Ceratosoma (Nudibranchia) and other molluscs collected during the voyage of H.M.S. Samarang, 1843-46. Malacological Review, 17: 103-104.
Best wishes,
Bill Rudman
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