Unknown shells

[lulu.shell]

Hello everybody!!!  

Here are a few more shells from my ever-growing unknown box of shells. As always, photos can be found on <a href="http://www.shellpictures.blogspot.com" target="_blank"><!-- w --><a class="postlink" href="http://www.shellpictures.blogspot.com">www.shellpictures.blogspot.com</a><!-- w --></a>

1. I think the middle shell on the right is the British specimen. I have no idea about the others, though.

2. half a cockle. Any idea which one?

3. nerita family.

4. no idea.

5. could this be mercenaria mercenaria, although it is completely white inside? It is also quite big.

6. half a pecten.

7. three images of an unknown landsnail.

Any help will be as always of great assistance. Thanks!  

Best wishes!!

Emma.

[mikede]

2. Carditidae sp. (not Cardiidae because of a different hinge)