February 19, 2010
From: Leon Altoff
It was found at Anderson Point, Portland in western Victoria, Australia. 23 February 2007. Photos: Leon Altoff
I hope the photos are of value.
Altoff, L., 2010 (Feb 19) Noalda exigua from Portland, Victoria. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23262
Thanks for your rapid response. Apart from Bob Burn's sketches of a living animal in Burn & Thompson, 1998, your photos are the only information I have on the nature of the animal of this enigmatic species, which was described on the basis of an empty shell.
I am posting a message today [#23242] on a very similarly looking species from the Andaman Sea. It's colour is very similar but the shell is not as exposed as in N. exigua and the head looks a little different in shape. Perhaps they are the same, but without any anatomical information I think it is best to leave them apart until we can comare them anatomically.
- Burn, R. & Thompson, T.E. (1998). Order Cephalaspidea. Mollusca: The Southern Synthesis. Fauna of Australia. P. L. Beesley, G. J. B. Ross and A. Wells. Melbourne, CSIRO Publishing. 5, Part B.: 943-959.