Help ID this shell (maybe some type of Murex?)

[moxed]

Hello! I'm new the forum. Could you please help me identify this shell (genus/species if possible). I think it's some type of Murex, but I'm not sure.

Thanks!

<img src="http://i8.photobucket.com/albums/a17/senob_bones/IMG_1639-1.jpg" alt="http://i8.photobucket.com/albums/a17/senob_bones/IMG_1639-1.jpg" style="border:0" />

<img src="http://i8.photobucket.com/albums/a17/senob_bones/IMG_1637-1.jpg" alt="http://i8.photobucket.com/albums/a17/senob_bones/IMG_1637-1.jpg" style="border:0" />

[paul monfils]

Hi, welcome to the forum and the website.  Not a murex.  This is in the family Bursidae.  It appears to be Bursa (Bufonaria) rana  (Linnaeus, 1758).