Trumpet snails

>>In response to discussion about malaysian trumpet snails that burrow in the 
substrate and eat detrius:  Any one know where to find these little guys?
Here in Western Mass no one seems to have heard of them much less stock 
them.  thanks in advance<<

I've also heard them called by a common name: Periwinkles.

David W. Webb
Enterprise Computing Provisioning
Texas Instruments Inc.
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