please help!!! i know nothing about seashells

[chastidyllaws]

i have alot of these shells i may sound dumb but like i said i know nothing about seashells,this shell is smooth and almost has an ivory texture, maybe i'm not good at this!!! but could you please help with this one also. thanks<a href="http://www.badongo.com/pic/1351106" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/1351106">http://www.badongo.com/pic/1351106</a><!-- m --></a> <a href="http://www.badongo.com/pic/1351113" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/1351113">http://www.badongo.com/pic/1351113</a><!-- m --></a>