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This is helpful. Thank you, David.
Olivier
Le 03/10/2014 21:22, [log in to unmask] a écrit :
> Dear Olivier,
>
> There are full descriptions of each in Gofas, et al.
>
> If I understand correctly, the differences include the protoconch (D. concatenata's has more than two whorls, the first globose and smooth, the second with spiral sculpture; D. coppolae's has two whorls, the first smooth, the second with axial ribs) and type of beading (D. concatenata's beads become axially-elongated, whereas D. coppolae's are pearl-like).
>
> I hope this is helpful.
>
> David Kirsh
> Durham, NC
>
> If money is speech, speech isn't free speech.
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