Re: nudibranch extinction? (3)

May 2, 2001
From: Mary Jane Adams

Hi Bill,
I referred the Chromodoris petechialis page to some diving friends in Hawaii. Jack Randall said he has never seen it. Another friend is going to show it to her underwater photo club in Kona. It is so beautiful, I hope it is not extinct. This is a perfect example of how the Sea Slug Forum can accomplish scientific discovery. For your information, the term petechia is used in medicine to describe pinpoint hemorrhages that occur as a result of occlusion of venous blood flow such as strangulation. I have a collection of NG magazines and was able to find the article in the Oct. 1959 issue. I had to laugh at the picture of the guy with his home made mask spearing those vicious eels!

On May 2 I am going on a field trip to the Philippines with Terry Gosliner. I am hoping to have some new submissions for the Forum in a few weeks.
Best regards,
Mary Jane

Adams, M.J., 2001 (May 2) Re: nudibranch extinction? (3). [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Mary Jane,
Thanks for the comment on 'petechia'. Many of the early ship's doctors/surgeons also acted as naturalists so there is a fair spattering of medical terms to be found nudibranch descriptions. I think it was Kelaart, an surgeon with the British Army in Ceylon in the 1850s who described the dorid Asteronotus cespitosus as being 'more like a horrid disease' than a beautiful 'sea nymph'.

Good luck in the Philippines, and I look forward to some interesting messages.
Best wishes,
Bill Rudman

Rudman, W.B., 2001 (May 2). Comment on Re: nudibranch extinction? (3) by Mary Jane Adams. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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