Hello!

Hi, These are Apularia sp., they are sold in black, blue, yellow or
gold, albino etc etc.  Most fish shops say they are Ampularia cuprina or
Ampularia gigas. Only the snails know for sure.  There is supposed to be
a website or a collector or a scientist/student scializing in these,
sorry I dont have a URL for that. The Ampularia sp. we have in Florida,
paludosa I think??, will wipe out your plants in pond or aquarium.
Supposedly the shops sell a species that is more benign to plants.

Later,


Emilio Jorge Power