"The most popular variety [of lobster] in the United States is the Maine lobster, also called American lobster. It has 5 pairs of legs, the first of which is in the form of large, heavy claws (which contain a good amount of meat). Maine lobsters are found off the Atlantic coast of the northern United States and Canada.
"Spiny lobsters (commonly called rock lobsters) are found in waters off Florida, Southern California, Mexico, Australia, New Zealand and South Africa. They're easily distinguished from the Maine lobster by the fact that all 10 of their legs are about the same size. Almost all of the meat is in the tail because the spiny lobster has no claws. That meat is firmer, stringier and not quite as sweet as that of the Maine lobster."