Noumea angustolutea? from American Samoa

September 26, 2002
From: Don Barclay

Hello Bill,
Here are a few shots of a pair of small nudibranchs found by Larry Madrigal on the afternoon of 11 July 2001. They were collected in shallow water under a large slab on the reef flat, Aua village, American Samoa. They measured about 12 and 16mm.

This appears to be one of your "rhthmic gill wagglers," or at least the entire time I was trying to photograph it, it would vibrate or waggle it's gills about once per second.

Could you confirm that they are Noumea angustolutea? If so, it looks like a possible known range extension to the east.

Thanks as always,
Don (and Larry)

Barclay, D., 2002 (Sep 26) Noumea angustolutea? from American Samoa. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Don & Larry,
I am pretty sure this is Noumea angustolutea but I would feel more comfortable if I had some 'inside' information.
Best wishes,
Bill Rudman.

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