Green Sea Shell ID

[sandlewood]

Hi I am hoping someone can help me identify some very fine cone shaped shells which my son inherited from his elderly uncle who travelled to PNG and Asia frequently in the 60s and 70s. They measure approx 4cm in length x 2cm in width at shell opening.

<a href="http://i960.photobucket.com/albums/ae85/sandlewoodopshopmoorooka/051.jpg" target="_blank"><!-- m --><a class="postlink" href="http://i960.photobucket.com/albums/ae85/sandlewoodopshopmoorooka/051.jpg">http://i960.photobucket.com/albums/ae85 ... ka/051.jpg</a><!-- m --></a>

Thanks in advance  <span class="petit">--Last edited by Paul Monfils on 2010-05-10 21:42:13 --</span>