Identification of shell

[micmic]

hi, Paul,

Thank you for your reply, it is so detail.

Wow... can not imagine that it is the internal structure. I have search in google and tried to find out what's the name. However, i eventually give up finding.

I never see this in my life time, i thought it is a "rare shell". lol. Anyway, I will still keep it with my seashell collection.

Thanks for the useful information. I have learn a lot from your site.