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Date: | Tue, 26 Jan 2010 11:33:43 -0500 |
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John,
A photo of Allonautilus perforatus can be found here
http://www.worldwideconchology.com/shellpix/nautilidae/NA-0111.jpg
The characteristic wrinkles are clearly visible.
Hope this is useful.
Rich
At 10:35 AM 1/26/2010, worldwide wrote:
>John,
>
>Allonautilus perforatus can be differentiated from Nautilus
>scrobiculatus by the distinct wrinkles radiating from the umbilicus
>on each side. The surface of the shell seems almost wavy (certainly
>not a technical term!). Though now known from more than a few
>specimens, it is still quite rare in Indonesian waters.
>
>Rich
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>www.worldwideconchology.com
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>At 09:46 AM 1/26/2010, you wrote:
>>Hi all,
>>
>>
>>While researching nautiloids for a small project, A. perforatus was
>>mentioned as being known from only a few specimens. So far, I have failed
>>to find a single photo of one on the web. Can anyone supply me with a
>>photo? I came across a specimen at the Astronaut Trail Shell Show in
>>Melbourne, FL labeled as such, but I want to confirm its identity.
>>
>>Thanks,
>>John
>>
>>John & Cheryl Jacobs
>>Seffner, FL
>>[log in to unmask]
>>
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