Scallops come in a number of varieties including sea scallops, bay scallops, and many more.But here's what you should know about the differences between the two most common scallops:.Sea scallops are the largest and most popular type of scallop, and a pound will usually contain 20-30 scallops.They're what you'll most commonly find in restaurants, and they're a little more chewy than tender bay scallops.Bay scallops are about a third the size of sea scallops, so you will get about 50 to 100 scallops per pound.With this smaller size comes more tender meat and they are even less expensive than most sea scallops.Unfortunately, now that you know the difference, there's no excuse for bringing home the wrong kind