Barry, I will e-mail you a number and person to call if you'd like to know the specific importer. I don't off hand know, but I do know the importer did offer this particular LFS another shipment of clams to replace all those he lost and the LFS owner refused them. He is NOT happy, and there are a lot of folks in the bay area that aren't too happy either. I know of at least 50 clams that have died due to this, and my guess there are hundreds that will die or have died already from this one incident as it systematically wipes out everyone's clams in the bay area whom bought a sick clam from this store.
Keep in mind, Barry, that this problem isn't apparent until the clam has about 1 to 3 days to live. Once you notice the coughing, the mucus, the gaping at night, etc. you don't have long before the clam dies, and it will die at night only. In the morning, the clam will have mucus all over the top, the mantle will be withdrawn, and those critters that love clam meat--worms, bugs, cleaner shrimp, fish, whatever--will be feasting.
Also keep in mind that the problem might not show up for weeks after the purchase. In my case it took TWO weeks! The LFS had about a two week delay as well, and we know exactly what shipment it was so that time is confirmed. Keeping the clam a week at a mail order holding facility might help, but that's not long enough to make sure the clam won't die in the next week or two. I'd say about a month would be needed to make sure the clam is healthy.
I bought two clams. One was a beautiful 4" Squamosa that looks like those one would get from Figi. The other was a small (2" about) super-bright blue crocea. Both looked perfect at purchase. The Squamosa died first. The small crocea died next. My older big crocea was going to be next if it weren't for the minocycline treatment it is getting now. The deaths seem to stagger out too, with no two clams dying the same day, as those who have had many losses can atest.