Found on the beaches of South Padre Island, Texas

[sarabeth]

I am not a shell collector by any means but I just returned from a trip to South Padre Island, Texas.  I found these shell pieces and I was just drawn to them for some reason.  I would like to know what they are.  I found tons of these pieces and some almost whole shells.  They are very thick.  Any information you could give me would be appreciated.

<a href="http://www.badongo.com/pic/6437712" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6437712">http://www.badongo.com/pic/6437712</a><!-- m --></a>

<a href="http://www.badongo.com/pic/6437729" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6437729">http://www.badongo.com/pic/6437729</a><!-- m --></a>

<a href="http://www.badongo.com/pic/6437719" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6437719">http://www.badongo.com/pic/6437719</a><!-- m --></a>