Lox is traditionally a salt-cured fillet from the salmon's belly, an area with the fattiest and richest meat (similar to a pork belly). If you've never had it with a bagel and cream cheese (or a ...
almost never lox. What you'll find on most bagel sandwiches is actually smoked salmon. Many people use the terms "smoked salmon" and "lox" interchangeably, but they're not actually the same.