Re: Samoan nudibranchs

August 31, 2000
From: Don Barclay

Dear Bill,

Many thanks for your comments on the two nudibranchs. The Dendrodoris nigra actually came from a location that is almost completely silt- and sand-free. The north side of Tutuila is mostly black lava cliffs and doesn't have much runoff to put organic material into the water. The visibility in the area was over 50 meters.

We did save a piece of the sponge that the Glossodoris cf. atromarginata was found on, but it looks almost exactly like the sponge in the top photo on your "Glossodoris atromarginata" page. If it isn't Hyatella intestinalis, it must be a closely-related Hyatella species. It was just a bit lighter in color. Larry Madrigal has collected G. atromarginata in Samoa before, but the others were more brightly colored and more distinctly marked, even those that were around the size of this recent specimen.

I didn't take any digital photos of the Chelidonura pallida since we had it positively ID'ed, but Larry says he'll send you a slide of it after they're developed.

Thanks again for all you help.
Cheers,
Don

n5ols@samoatelco.com

Barclay, D., 2000 (Aug 31) Re: Samoan nudibranchs. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2945

Dear Don,
Thanks for the additional information. My suggestion that they may be from a silty environment must be one of my most short-lived hypotheses. Facts can be a real problem when you have a good theory!

I look forward to a photo of Chelidonura pallida.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Aug 31). Comment on Re: Samoan nudibranchs by Don Barclay. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2945

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