REMEMBER THAT George Carlin routine where he riffs on the absurdity of the phrase “jumbo shrimp”? In fact, there are many different sizes of shrimp (based on the number per pound), and that’s a good thing. The pros at 200-plus-year-old seafood purveyor Fulton Fish Market note that different sizes of shrimp are better in different recipes and can require different cooking methods. Here are some commonly available sizes, according to shellfish supplier LobsterAnywhere.com, along with great ways to use each. (As there are no industry naming standards, quantities listed at your market may vary slightly.)