As I commuicated to David offline, individual shells from  populatios
of Anomia simplex in the western part of Long Island (Nassau County,
Brooklyn) are generally not very colorful. On the other hand, further
east,  particularly on the north shore of the south fork of Long
Island at places like North Sea, Towd Point, North Haven, and also
near Orient Point, the shells are much more colorful, and pairs wash
up by the thousands in some places, so the hold of the byssus on the
substrate is not absolutely powerful. These eastern populations have
lots of colorful shells, including a lot of what I call
"creamsicle-pop " orange ones. This geographic variability supports
what Paul said, may just be genetic.

By the way for anybody interested in Long Island shells, another
specimen of Tagelus divisus was found in Shinnecock Bay on Sunday.
That is only the 5th specimen I am aware of since about 1975. This
shell has an interesting distribution, rare in NY and also I believe
rare in New Jersey, but increasingly common to the north, and to the
south.

On 10/6/09, David N. Posnett <[log in to unmask]> wrote:
> To: Paul Monfils
> check this new blog post out:
>
> http://maidstonejewelry.wordpress.com/2009/10/06/jingle-shells/
>
> Thanks again for your help. David
>
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