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Nucleoleria ?



 
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shellnut62




Gender: Gender:Male
Joined: 09 Mar 2009
Posts: 14
Location: New Zealand

PostPosted: 25.05.2013, 03:56    Post subject: Nucleoleria ? Reply with quote

I need a little help with ID on this one.

The shell is 16.7mm long and was found dead but in live like condition on a recent trip to Niue Island Polynesia. It is in all probability a slightly sub adult Nucleus variant, but it is strange. The basal ribs and margins are closer to Granulata at the same stage of maturity. Niuean Nucleus are normally smaller and have finer and far more numerous basal ribs

The photos don't show the true colours which is a blue green background with distinct brown posterior and anterior tips, the base is white with some colouration to the teeth in the aperture. The basal ribbing is extremely strong and extends across the entire base up the margins and partially on to the dorsum. The dorsal pattern is fused rather than pusulated, shape is flat rather than humped and it is broad for almost the entire length.

Anyway I would appreciate some other opinions

http://imageshack.us/a/img694/3706/p1000881yd.jpg
http://imageshack.us/a/img405/2654/p1000890pc.jpg
http://imageshack.us/a/img7/194/p1000888ho.jpg
http://imageshack.us/a/img841/9670/p1000886f.jpg
http://imageshack.us/a/img402/460/p1000885i.jpg

Michael
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felix
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Gender: Gender:Male
Joined: 05 Feb 2007
Posts: 759
Location: Germany

PostPosted: 25.05.2013, 14:33    Post subject: Reply with quote

to me this is a subadult nucleus gemmosa, photographed during an earthquake.
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