id help

[mark]

Hello,

Please help me with id this shells.

Architectonica
1. <a href="http://www.badongo.com/pic/6352922" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6352922">http://www.badongo.com/pic/6352922</a><!-- m --></a> <a href="http://www.badongo.com/pic/6353024" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6353024">http://www.badongo.com/pic/6353024</a><!-- m --></a>

The first in top rowI think A. perspectiva maybe the second is too but it looks too high.
2. <a href="http://www.badongo.com/pic/6353297" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6353297">http://www.badongo.com/pic/6353297</a><!-- m --></a> <a href="http://www.badongo.com/pic/6353336" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6353336">http://www.badongo.com/pic/6353336</a><!-- m --></a>

It is from Croatia but now I think it was transported in the sea and it’s a landsnail.
3. <a href="http://www.badongo.com/pic/6353555" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6353555">http://www.badongo.com/pic/6353555</a><!-- m --></a> <a href="http://www.badongo.com/pic/6352990" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6352990">http://www.badongo.com/pic/6352990</a><!-- m --></a>

Ethalia sp. ?
4. <a href="http://www.badongo.com/pic/6353364" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6353364">http://www.badongo.com/pic/6353364</a><!-- m --></a> <a href="http://www.badongo.com/pic/6353770[/url]" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/6353770">http://www.badongo.com/pic/6353770</a><!-- m -->[/url]</a>

Thanks,

Mark