Somebody can help me with the identification

[Yeny]

Hi Paul Monfils!

Thank you very much for the information so valuable. Sorry for not responding earlier, unfortunately I could not answer before so much time has passed, really sorry. You're right, the shells are very damaged and very difficult to identify. Viewing your comment I realize that perhaps the shell pictures 1 and 2 are family Haliotidae, hough I dare say it is badly damaged, but I find more similarities.
The shell of the images 3 and 4 have drilling done by man, is not natural, unfortunately would have to rule that belongs to the family Fissurelidae.

This is the link of the shell 1 (Photos 1 and 2) from another view, to see what you think?

<!-- m --><a class="postlink" href="http://www.badongo.com/pic/13756739">http://www.badongo.com/pic/13756739</a><!-- m -->


Thank you very much for your kind attention again.

Yeny