I need help identifying this shell

[nmeesen]

<a href="http://www.badongo.com/pic/763789" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/763789">http://www.badongo.com/pic/763789</a><!-- m --></a>


Dear All,

I have attached a link above and I was hoping you could hel me identify this shell. I found it here in Marbella, south spain in the medditerranean sea. It is 9 cm long and it looks very old.

Many Thanks.

Nathalie