Just a question, why would you go through the trouble of importing (or smuggling) clams from the U.S. when you can order them from, say,
www.jlaquatics.com,
www.seacare.org, or
www.saltwaterconnection.com? If they don't have any right now, they're sure to get some soon enough ... Seacare and J&L are in your city so you don't even have to MO from them. Just my $0.02 .... Hope you find what you're looking for .. good luck
