unknown landsnail

[lulu.shell]

Hello again!

Nobody can seem to offer me a name for this blue landsnail. I have another one which is white with orange around the centre where the whorls are the smallest. The other landsnail is dead collected from Samoa. Could it be asperitas sp? Does anybody know?

Thanks for all your help!

<img src="http://1.bp.blogspot.com/_PHbVtVT661c/TEXKFJ21oxI/AAAAAAAAANQ/rygeQt6SE9U/s400/P7191772.JPG" alt="http://1.bp.blogspot.com/_PHbVtVT661c/TEXKFJ21oxI/AAAAAAAAANQ/rygeQt6SE9U/s400/P7191772.JPG" style="border:0" />
<img src="http://1.bp.blogspot.com/_PHbVtVT661c/TEXJ_Jst6HI/AAAAAAAAANI/mKooXpLOgQQ/s400/P7191771.JPG" alt="http://1.bp.blogspot.com/_PHbVtVT661c/TEXJ_Jst6HI/AAAAAAAAANI/mKooXpLOgQQ/s400/P7191771.JPG" style="border:0" />
<img src="http://4.bp.blogspot.com/_PHbVtVT661c/TEXJ1hiiV3I/AAAAAAAAANA/CbU_ggsTh_I/s400/P7191770.JPG" alt="http://4.bp.blogspot.com/_PHbVtVT661c/TEXJ1hiiV3I/AAAAAAAAANA/CbU_ggsTh_I/s400/P7191770.JPG" style="border:0" />

Maybe asperitas sp?

<img src="http://3.bp.blogspot.com/_PHbVtVT661c/S-febIKxXoI/AAAAAAAAALo/MqwzcKy0diA/s400/Samoa1.JPG" alt="http://3.bp.blogspot.com/_PHbVtVT661c/S-febIKxXoI/AAAAAAAAALo/MqwzcKy0diA/s400/Samoa1.JPG" style="border:0" />
<img src="http://1.bp.blogspot.com/_PHbVtVT661c/S-feU_gMvqI/AAAAAAAAALg/JzB0ISUJig4/s400/Samoa.JPG" alt="http://1.bp.blogspot.com/_PHbVtVT661c/S-feU_gMvqI/AAAAAAAAALg/JzB0ISUJig4/s400/Samoa.JPG" style="border:0" />

[paul monfils]

The top one looks like a Pleurodonte.  I'm not sure which species. There are various species on various Caribbean islands.

[lulu.shell]

Maybe pleurodonte lucerna? pleurodonte badia is too small, even though it looks more probable. Any ideas on the other landsnail?
Thanks!