thanks Seashell Collector, you are very helpfull

[luigi_67]

Now please help me with these shells
first i founded in the caribbean on the rocks <a href="http://img158.imageshack.us/my.php?image=dsc02827ji1.jpg" target="_blank"><img src="http://img158.imageshack.us/img158/4649/dsc02827ji1.th.jpg" alt="http://img158.imageshack.us/img158/4649/dsc02827ji1.th.jpg" style="border:0" /></a>
<a href="http://img158.imageshack.us/my.php?image=dsc02826it9.jpg" target="_blank"><img src="http://img158.imageshack.us/img158/2197/dsc02826it9.th.jpg" alt="http://img158.imageshack.us/img158/2197/dsc02826it9.th.jpg" style="border:0" /></a>
the second  the same
<a href="http://img234.imageshack.us/my.php?image=dsc02833vo0.jpg" target="_blank"><img src="http://img234.imageshack.us/img234/111/dsc02833vo0.th.jpg" alt="http://img234.imageshack.us/img234/111/dsc02833vo0.th.jpg" style="border:0" /></a>
thanks