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Sender:	Conchologists of America List <[log in to unmask]>
Subject:	Re: Amphi-Atlantic species
From:	Ross Mayhew <[log in to unmask]>
Date:	Thu, 14 Nov 2002 23:31:40 +0000
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Reply-To:	Conchologists of America List <[log in to unmask]>
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I guess the real question is why are there not more non-boreal species
that occur on both sides of the Atlantic?  If a few species such as
Nodipecten nodosus managed to cross the pond in Pleistocene times, why
are there not more of them?  What a great topic for a PhD thesis!!!

Drying out, but with a still-submerged pier on the river,
Ross M.

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